Database Users

Something is killing my battery?!?!

So I am at work, looking at my N1, and I'll let you all tell me if you think there is a problem...Since a full charge last night, my phone has been off the dock for 2h9m ...
In that time, my battery has dropped 14% already. The biggest culprit...the display...with 59%...despite only being on for 15m. I always use it on the middle brightness setting from the power bar. Ive lost basically 1% for every minute the screen has been on. At that rate, my phone wouldn't even last 2 hours turned on.
Am I being paranoid? Do I have some rogue program sucking battery life? Your thoughts?

Everybody says controversial stuff about phones like N1 or iPhone regarding battery life. But I can tell you from experience and some conferences I have been the following tips to improve your N1 battery:
-Leave brightness to minimum. Only at street you will need to have it at medium or maximum so you can see well.
-Use 3G or wifi when available. It will save more battery than if you use edge.
-Use push, also it's better.
-User apps like TaskManager to auto kill some application that remain open.
And last thing, if you have a new N1 the battery life will improve with the use within the next 2 weeks. Also, I'm sure you are playing around more than usual if you just got it.
I hope this help you.

*#*#4636#*#*
Battery History
See what the figure for 'running' is, if it's high, something is stopping the phone sleeping. Should that be the case, chage the top drop down box to 'partial wake usage' and see what is to blame.

blastik said:
Everybody says controversial stuff about phones like N1 or iPhone regarding battery life. But I can tell you from experience and some conferences I have been the following tips to improve your N1 battery:
-Leave brightness to minimum. Only at street you will need to have it at medium or maximum so you can see well.
-Use 3G or wifi when available. It will save more battery than if you use edge.
-Use push, also it's better.
-User apps like TaskManager to auto kill some application that remain open.
And last thing, if you have a new N1 the battery life will improve with the use within the next 2 weeks. Also, I'm sure you are playing around more than usual if you just got it.
I hope this help you.
Click to expand...
Click to collapse
This is the complete opposite of what everyone else will tell you.
Most people say to force 2G (Edge) because it'll save battery over 3G. There are reports that WiFi will use less battery than 3G though, but not as good as 2G. Google even says this on the screen where you force 2G.
Push Email will require a constant polling on the internet. Since Android is a web OS, its probably connected to the internet anyway, but you can disable Auto Sync and Background Sync to save battery (once again, Google says this on that screen).
I agree with #1 and #4 though. If you don't want to do the lowest brightness setting, try the Auto Dim, it seems to dim it a lot more than my old Windows Mobile phones did.

mindfrost82 said:
This is the complete opposite of what everyone else will tell you.
Most people say to force 2G (Edge) because it'll save battery over 3G. There are reports that WiFi will use less battery than 3G though, but not as good as 2G. Google even says this on the screen where you force 2G.
Push Email will require a constant polling on the internet. Since Android is a web OS, its probably connected to the internet anyway, but you can disable Auto Sync and Background Sync to save battery (once again, Google says this on that screen).
I agree with #1 and #4 though. If you don't want to do the lowest brightness setting, try the Auto Dim, it seems to dim it a lot more than my old Windows Mobile phones did.
Click to expand...
Click to collapse
At first I had the same opinion as you have but after I watched this video it changed radically
http://www.youtube.com/watch?v=OUemfrKe65c&feature=player_embedded

mindfrost82 said:
Push Email will require a constant polling on the internet.
Click to expand...
Click to collapse
No it doesn't, that's the beauty of push email. It opens a connection to the server and just sits idle.

Rusty! said:
No it doesn't, that's the beauty of push email. It opens a connection to the server and just sits idle.
Click to expand...
Click to collapse
You are right so ... it saves battery at the end.
@mindfrost82. Check out the video, it will tech you few things because most of people is wrong as I was in the past.

Battery Drain
My phone would drain 15% battery in 1 hour just being idle witht he screen off. I dialed *#*#4636#*#* and changed the option from WCDMA preffered to WCDMA only. When I don't get a 3g signal (not often) I jsut go back to that and set it to GSM only. For one reason or another the WCDMA preffered SUCKS THE BATTERY!
4 hours of the phone being idle and only 5% battery drain! DO IT! IT WORKS!

blastik said:
At first I had the same opinion as you have but after I watched this video it changed radically
http://www.youtube.com/watch?v=OUemfrKe65c&feature=player_embedded
Click to expand...
Click to collapse
WTF? 3g uses LESS POWER than edge/wifi?!
My whole world just got turned upside down
Thanks for posting the video

ap3604 said:
WTF? 3g uses LESS POWER than edge/wifi?!
My whole world just got turned upside down
Thanks for posting the video
Click to expand...
Click to collapse
You need to be careful of this. The point the video made is that if you download something OF SIMILAR SIZE, you will realize battery gains by virtue of the fact that what you are downloading/uploading takes exponentially less time to retrieve. The real question is, if 2 phones are both casually browsing for the same amount of time...without worrying how much information was actually transferred...one on Edge, the other on 3G...is there a difference in battery performance?
What the video said is just common sense. If I am going to send you 20 MB file and one way takes 2 minutes to download it and the other takes 10 minutes to download, then OF COURSE the 2 minute method is going to be more efficient. So you can download on Wifi where it might take x amount of time, compared to 3G where it takes 5x or edge where it takes 10x. Thus, if the file size the person is going to download is known, then of course it makes sense to tell them to wait until they are on wifi. However, many of us casually browse, on the spot, without regard to the type of connection we are on.

RayKinStL said:
You need to be careful of this. The point the video made is that if you download something OF SIMILAR SIZE, you will realize battery gains by virtue of the fact that what you are downloading/uploading takes exponentially less time to retrieve. The real question is, if 2 phones are both casually browsing for the same amount of time...without worrying how much information was actually transferred...one on Edge, the other on 3G...is there a difference in battery performance?
What the video said is just common sense. If I am going to send you 20 MB file and one way takes 2 minutes to download it and the other takes 10 minutes to download, then OF COURSE the 2 minute method is going to be more efficient. So you can download on Wifi where it might take x amount of time, compared to 3G where it takes 5x or edge where it takes 10x. Thus, if the file size the person is going to download is known, then of course it makes sense to tell them to wait until they are on wifi. However, many of us casually browse, on the spot, without regard to the type of connection we are on.
Click to expand...
Click to collapse
Yeah, what you just said is right. But still you are saving battery up! Plus I wouldn't use edge at all in my N1. What's the point of having almost everything disabled so I can receive calls?
I remind you that while edge is sending/receiving data you cannot get any calls

blastik said:
At first I had the same opinion as you have but after I watched this video it changed radically
http://www.youtube.com/watch?v=OUemfrKe65c&feature=player_embedded
Click to expand...
Click to collapse
This is an excellent video, I highly recommend watching it if you are even remotely interested in the inner workings of our phones.

blastik said:
I remind you that while edge is sending/receiving data you cannot get any calls
Click to expand...
Click to collapse
Thanks, I didn't know this, for the info this thread is full of great stuff...

1) middle brightness is very bright. I'm sure you can live with 25%. Display brightness will always drain battery like mad.
2) 3G power use is usually decent. The N1 has terrible RF so it might be fighting 2G/3G. That will cost you a lot of power. If you're getting full 4 bars 3G everywhere you go even underground, you might be ok, but in low reception areas, it's gonna drain your battery struggling to boost power. Bigger issue during a call too.I notice this on my Milestone. The N1 completely fails at 3G while my Milestone fights for it. As a result the Milestone gets quite hot.
3) There are sometimes apps that run in the background. Some people insist task killers aren't necessary, but lemme give you an example. Stupid Speedtest program failed to acquire my location. After a test, you can't really exit, so you just hit home. Droidforums fanatics will always repost that link to that one thread where they talk about memory and its ok to not have to kill an app. Think again. The GPS turns on because of Speedtest and it keeps trying to acquire your location. Gotta kill it with a task manager or that thing will kill you. Or a webpage. I've heard of people going to some site that keeps refreshing. Oh good luck to your battery. Make sure you close these things. Use a task manager. Sometimes Facebook or Twitter might be the culprit even if your refresh rates are awfully long. I do not understand this phone sometimes. At times I feel that multitasking/memory management on Android gets you into more trouble than if you just flat out restricted it like in the iPhone. I'm not saying the iPhone's restrictions are the way to go, but Apple knew what it was doing. There's a reason Android phones gobble power and pull data like mad even when you aren't aware. Random apps sometimes start. Facebook widget refreshes even though the app itself is set not to auto notify and to update on its own. So with so many things running loose, its quite easy to see why your battery can go down so fast.

RayKinStL said:
You need to be careful of this. The point the video made is that if you download something OF SIMILAR SIZE, you will realize battery gains by virtue of the fact that what you are downloading/uploading takes exponentially less time to retrieve. The real question is, if 2 phones are both casually browsing for the same amount of time...without worrying how much information was actually transferred...one on Edge, the other on 3G...is there a difference in battery performance?
What the video said is just common sense. If I am going to send you 20 MB file and one way takes 2 minutes to download it and the other takes 10 minutes to download, then OF COURSE the 2 minute method is going to be more efficient. So you can download on Wifi where it might take x amount of time, compared to 3G where it takes 5x or edge where it takes 10x. Thus, if the file size the person is going to download is known, then of course it makes sense to tell them to wait until they are on wifi. However, many of us casually browse, on the spot, without regard to the type of connection we are on.
Click to expand...
Click to collapse
That's exactly the idea I got from that video too, which makes sense.

dmo580 said:
1) middle brightness is very bright. I'm sure you can live with 25%. Display brightness will always drain battery like mad.
2) 3G power use is usually decent. The N1 has terrible RF so it might be fighting 2G/3G. That will cost you a lot of power. If you're getting full 4 bars 3G everywhere you go even underground, you might be ok, but in low reception areas, it's gonna drain your battery struggling to boost power. Bigger issue during a call too.I notice this on my Milestone. The N1 completely fails at 3G while my Milestone fights for it. As a result the Milestone gets quite hot.
3) There are sometimes apps that run in the background. Some people insist task killers aren't necessary, but lemme give you an example. Stupid Speedtest program failed to acquire my location. After a test, you can't really exit, so you just hit home. Droidforums fanatics will always repost that link to that one thread where they talk about memory and its ok to not have to kill an app. Think again. The GPS turns on because of Speedtest and it keeps trying to acquire your location. Gotta kill it with a task manager or that thing will kill you. Or a webpage. I've heard of people going to some site that keeps refreshing. Oh good luck to your battery. Make sure you close these things. Use a task manager. Sometimes Facebook or Twitter might be the culprit even if your refresh rates are awfully long. I do not understand this phone sometimes. At times I feel that multitasking/memory management on Android gets you into more trouble than if you just flat out restricted it like in the iPhone. I'm not saying the iPhone's restrictions are the way to go, but Apple knew what it was doing. There's a reason Android phones gobble power and pull data like mad even when you aren't aware. Random apps sometimes start. Facebook widget refreshes even though the app itself is set not to auto notify and to update on its own. So with so many things running loose, its quite easy to see why your battery can go down so fast.
Click to expand...
Click to collapse
I'll second this, I never used to use a task killer as I figured it was just extra drain on the battery but after running across some rogue programs that kept running after being closed and draining the heck out of my battery I decided to install taskkiller and set it up to autokill apps when the screen goes off.
It's really easy to setup just install it from the market then use it to kill everything then flip through your homescreens make sure everything is up and running and go back into task killer and add everything there to the ignore list and turn on "autokill when screen off" now you don't ever have to worry about rogue apps killing your battery again and everything else will function normally.

blastik said:
Yeah, what you just said is right. But still you are saving battery up! Plus I wouldn't use edge at all in my N1. What's the point of having almost everything disabled so I can receive calls?
I remind you that while edge is sending/receiving data you cannot get any calls
Click to expand...
Click to collapse
yes you can, the phone will stop whatever data it's processing and take the call.

seanhassars said:
yes you can, the phone will stop whatever data it's processing and take the call.
Click to expand...
Click to collapse
I'm sure 100% that while phone is receiving data over edge you wont get calls. I know because I had push enabled and afterwards I was getting SMS from my carrier that I have missed calls. It might say "ey sb is trying to call you" and then stop data transfer but for sure your will miss first call if someone is trying to reach you several times.
Check it out yourself.

blastik said:
Everybody says controversial stuff about phones like N1 or iPhone regarding battery life. But I can tell you from experience and some conferences I have been the following tips to improve your N1 battery:
-Leave brightness to minimum. Only at street you will need to have it at medium or maximum so you can see well.
-Use 3G or wifi when available. It will save more battery than if you use edge.
-Use push, also it's better.
-User apps like TaskManager to auto kill some application that remain open.
And last thing, if you have a new N1 the battery life will improve with the use within the next 2 weeks. Also, I'm sure you are playing around more than usual if you just got it.
I hope this help you.
Click to expand...
Click to collapse
there are a lot of people who say do not use a task killer, including google devs etc.
i used advanced task killer for the longest time, being used to needing one as a WM user before getting my n1. after reading various posts on the issue, i tested without and my battery life increased.
i use juice defender now as well to turn off the apn and wifi, based on speeds/location/etc
have it set to prefer 2g (dont get 3g at home)
screebl also setup to turn screen off when not in certain position in hand
last one is setcpu (need root for this though) underclocking the cpu (including advanced setting and profiles i have set)
lowest setting for brightness
also keep gps off unless needed
i hit about 24hr from unplug til 10% w/ heavy useage, wifi on all the time (although juicedefender handles when its on/off)
just now went to kmobs UV kernel and testing that to increase my times
i've done a 24hr test from 100%>10% based on each app i've mentioned

I think while we are on topic of battery life.. for those of you who are rooted. Here is another link that I would recommend. I used these on my HTC Dream and works great on the Nexus One. Increase your battery life 10 fold.
Your Tube: "Get Better Battery Life" by droiddog
sorry not allowed to link yet

Memory Booster (120 mb-180 mb)

Anyone used this app? I tried it and it boosted my memory from 123 mb to 180 mb.
i know "if you have free memory you're wasting it". but in my opinion this combined with advanced task killer will improve battery life a lot.
its on android market, just type memory booster

Lol I experimented with these kind of apps, my opinion is that they are pretty much pointless.
I simply tell things not to auto update and removed unused junk.
Did the trick for me.
Swyped from my rooted X10i using Tapatalk.

I'll bite. How will having more free memory improve battery life?

You don't need third party apps. You have to determine which app is eating your battery life. The only thing memory booster is doing is disrupting Android's memory management processes.
Sent from my SAMSUNG-SGH-I897 using XDA App

if it could activate the full ram potential of the handset then it would be worth while but i dont see the point in the extra mem for app's.

Like I said I simply stop stuff auto updating and therefore save battery life as no apps are active, merely sitting in ram.
Swyped from my rooted X10i using Tapatalk.

I only kill programs when I want my phone in standby because I know I won't be using it. Or with programs that can still run in the background and stay active when they shouldn't.
Other than that, don't be a frequent task killer. It's not an iPhone, it's an Android phone. As much as I loathe my Xperia X10 it's far better than an iTurd.

bongd said:
I only kill programs when I want my phone in standby because I know I won't be using it. Or with programs that can still run in the background and stay active when they shouldn't.
Other than that, don't be a frequent task killer. It's not an iPhone, it's an Android phone. As much as I loathe my Xperia X10 it's far better than an iTurd.
Click to expand...
Click to collapse
Way to try to prove your cool by trying to inject irrelevant crap into the discussion. Especially ****e you obviously know sweet fa about. You do realize that when you get down to the nuts and bolts the memory management is almost identical in iOS and Android? Only difference is how it's exposed to apps. My gf has my iPhone 4 now, trust me, calling it an iTurd just makes you look a bit special - and not in a good way either.
P.S. task killers made sense on phones like mt3g that were memory limited, when you went to launch a big app like gallery it popped up straight away if there was free ram - when memory was all spoken for, the system would have to kill a bunch a tasks, so it'd hang for a while before launching your app. Can't say I noticed the need for that on my X10.

rynoon said:
I'll bite. How will having more free memory improve battery life?
Click to expand...
Click to collapse
It isn't the free memory that saves battery. It's the applications being "killed" that otherwise would need some battery power as they lie in the background doing things. Even sleeping applications have some "attention" from the kernel and that will drain (slightly) on the battery too. Every drip-drop counts.

SysGhost said:
It isn't the free memory that saves battery. It's the applications being "killed" that otherwise would need some battery power as they lie in the background doing things. Even sleeping applications have some "attention" from the kernel and that will drain (slightly) on the battery too. Every drip-drop counts.
Click to expand...
Click to collapse
And every time you want to use an app, will have to be reloaded in memory wasting more power for that task.
Anyhow, do it your way ...
The rest of the world is just stupid.

This constant debate of whether app management apps work or not is really irrelevant. Some work, some don't. Just try and find that out.
Once I listened to posters here and decided not to use ATK because of the reasoning that Android is efficient by itself. Wrong. My battery kept draining fast. Once I started using ATK and modifying the program here and there, my battery's energy consumption actually slowed down and I can go through a whole day without charging. My settings? Put ATK on safe mode and auto kill every half hour, and ignore SE's own backup app (for some reason, killing SE backup caused a disruption with the data/signal for a second).
So for everyone, just try and see whatever is recommended works.

Exactly my point. I used to use atk with similar settings to yourself and experienced greater battery drain.
I get better results with my method.
We all use our phones in different ways so it follows we would experience differing results.
Swyped from my rooted X10i using Tapatalk.

I'm trying to figure out how some people drain the batteries so fast. I have my phone set up as a wifi accesspoint, I'm using bluetooth, autosyncing my gmail and calendar but still I get more than a full day use out of it. If I listen to music over a bluetooth headset constantly I can't last a day but the juice in my headset tends to run out faster.
I can't for the life of me figure out what people do. I'm not using any task killers or what have you but still get between 18 and 24 hours of heavy usage.

I was using a task killer before reading on here about how they are useless and whatnot. But I find my phone freezes up more now that I am not using it. The battery seems to be around the same. All I do is text and use facebook and it seems to freeze up when texting or typing half the time. I am kind of wondering if it's because I text so quickly..

Just to clear things up a bit:
Many applications out there are bad.
Applications that are some real heavy battery hogs, even when prefetched in the background.
Those bad applications keeps downloading adverts now and then, executing instructions while in the background, and so on. Those applications doesn't have any sleep/standby routines , or the routines are empty.
Some applications are so badly written, they're running at "full speed" no matter what. Those extremely bad applications keeps the CPU at full speed even when in standby mode.
A good sign of this is when the phone gets hot, even when not used. It's the CPU that heats up the device.
The programmers of these bad applications have no whatsoever experience with Androids "sleep and standby" functions and therefor left them empty or half-done.
This is why killing applications helps for some, and not for others.
It all depends if one got one or more "bad" applications installed.
And Android aren't too smart either. It'll just prefetch, to what it seems, a random bunch of applications.
For me Android prefetch apps I rarely use, and skips the applications I use everyday. Weird?
If one would keep the device clean and keep those bad applications out, (of which noone can tell if it's a bad app or not. There's nothing visibly wrong about them) one wouldn't need a separate task-killer. Or if EVERY single application out there where perfectly written, accordingly to the Android model.

Super Evo Battery Tips and Explanations **Updated 1-22-11**

Over the months I have been an Evo user, I have collected some valuable information that all users should probably know in regards to maximizing battery life. Besides the stuff about 4G and a few specific options, these steps apply to pretty much any other android phone running 2.2, and a lot of them apply to versions below Froyo.
General Lithium Ion Battery Information
^^This link includes stuff about charging, including trickle charging aka SBC (Why NOT to use it, or at your own peril)
My tips for good battery life:
Tips for Non-Rooted users:
1. Turn off all radios when not in use.
(gps, Bluetooth, wifi, data, 4g) Use a widget like the default HTC power widget or Switchpro from the market. The radios of the phone draw power if on even if the user isn't actually utilizing the radio's functions.
To manually turn off radios without a toggle, go to menu>settings>wireless & networks.
Wifi uses less battery than 3G, so use wifi when you can.
**IMPORTANT DISCOVERY**When you turn on your 4G radio, then turn it off, it will keep scanning and turning off all by itself.
The problem is apparently exacerbated by a 4G toggle widget, which causes the phone to automatically turn on 4G at boot. This repeating of scanning and disconnecting severely drains battery life, and sadly, no matter what ROM or kernel you use, there is only one way to fix it:
-If you don’t use the toggle widget, then you have to reboot your phone after turning off 4G
-If you do use a toggle widget, then you have to remove the widget from your homescreens, then turn off 4G via settings, then reboot.
**To check to see if this is happening, download alogcat off of the market. Look for the lines saying: I/Wimax ( xxx): <DC> Try to establish a connection to DC server.
E/Wimax ( xxx): <DC CONNECT> IO error: msg=’/xxx.x.x.x:xxxx –
Connection refused’
Over and over again.
2. Juice Defender is one of my favorite apps. Basically it controls your data for you to maximize life.
More explanations are on their page, search it on the market for free, or upgrade for more features.
Here are my settings for it: Click me
Note that for me at least, juice defender likes to deny apps data privileges whether you allow them or not, so screen on = data on works best for me.
3. I love live wallpapers, and I’ve always been a fan of pixel zombies, but they are really only good for showing off due to their battery drain.
4. Go to menu<settings<wireless & networks<mobile networks<disable always on mobile data.
Product F(RED) said:
To clarify, "Always On Mobile Data", when turned off, lets the 3G modem go to sleep after the screen has been off for 5 minutes. It doesn't interfere with anything like email or any other application that requires an internet connection at that moment because it turns on on-demand rather than being on all the time and wasting battery.
Click to expand...
Click to collapse
5. Set your screen timeout to something that fits you
This will prevent your phone from staying on when you don’t manually turn off the screen. Also with this, manually turn off your screen when you’re done with your phone.
6. Everyone has that issue where the first ten percent go the fastest.
This is due to two things. One is that these types of batteries stop charging once they get to 100% to prevent damage, and begin charging again at 90%. This means that you could potentially unplug your seemingly fully charged phone at 90% actual charge. The second is number 6.5.
6.5. Use the trick described in this thread, it works.
My idea behind how often you should do it is once a month, if you flash a new ROM, or if you stop noticing the benefits.
This is the calibration technique recommended by HTC themselves. Check it out!​
7. Task killers used to be the shiz, but no longer.
Here is the ultimate, in depth, graphically assisted, explanation by the famous Fresh ROM's chef, Flipz. Shortly, in light of recent testing, really don’t do anything but force apps that the android OS needed to be open, and thus didn’t close, to re-open. So try not using them, unless for stuff like trying to figure out why your phone isn’t sleeping with system panel. You really won’t notice a performance difference, and the adverse effects you aren’t seeing will stop
+=+ A good alternative is the application SystemPanel Pro. It has a free version, but I highly reccomend purchasing the paid app. It basically monitors everything going on with your phone's usage both in real time an in terms of usage history. If your battery is draiging fast, it tells you what app was doing it, how much it was doing it, and allows you to stop it.
8. People posting screenshots of the Battery screen as proof of long lasting battery are giving statistically irrelevant information.
See HERE That screen shows time since last REBOOT, not last charge. This isn't always the case, but a lot of people will post a lot of things about battery life, but look for definitive screenshots and testing results before you break down and cry due to the poster's life and yours.
9. I'm sure you have all heard around that your phone isn't "sleeping".
This is referring to the phone's "awake" time, hence the name. When you go to menu>settings>about phone>battery, you can compare the two numbers, "up time" vs. "awake time." Generally, up time refers to the amount of time since the last reboot. The "awake time" is how long the screen has been active. The problem is, a lot of the time, due to the endless possibilities of inconsistencies between apps/ROMs/kernels/phones, the phone will not go to "sleep", drawing power proportionate to the screen being in use when it reality the phone is sitting idle.
If you compare these numbers, and they are the same, or if you note the difference, turn off the screen for a minute, then re-check and they are the same, then your phone is not sleeping.
One solution is to reboot.
Usually, SystemPanel will show an app that has gone "rouge" and is keeping your phone awake.
Uninstall applications/reinstalling them slowly, checking after every install to see what is causing it is one tedious but surefire solution.
Lastly,
Follow these steps that I have discovered almost always work.
1. Reboot phone.
2. Instantly upon reboot, as soon as you gain control, open up some type of monitor/taskkiller
3. "kill all" tasks on startup; about 5 times in quick succession should do the trick.
4. Turn off the screen and leave it for about five minutes.
5. Check the up time v. awake time and see if they are the same.
6. If they are, repeat steps 1-5. If they are different, you are good.
Tips for Rooted users:
1. Try out custom kernels.
By going to the EVO 4G Android Development section of the forums, you can see all of the different kernels being developed. These allow for all kinds of modifications like underclocking the CPU and undervolting, both of which save battery. To see how to use them, read the FAQ's in each thread's OPs.
Here is a great guide to custom kernel's by mroneeyedboh.
2. Use SetCPU in compliance with whatever your custom kernel allows.
This site will explain the basics of SetCPU: http://www.pokedev.com/setcpu/
-Profiles from SetCPU should usually involve these for battery life optimization:
-Screen off at the minimum clock speed for both, with the max raised on level if sluggishness is apparent
-A temperature greater than “X”
-General power related profiles that lower cpu speed at lower battery levels
-Here are my SetCPU profiles: 1 , 2 , 3
-My profiles change a lot as time goes by, because different kernel creators recommend different settings. I suggest reading up on whatever kernel you are using to gather settings.
------------------------------------------------------------------------------------------------------
NOTES:
*Some apps or processes begin to run at startup and keep the phone awake. These apps are not detected by things like spare parts or system panel, unless sometimes represented in the "system" process, in which case its usage will be unusually high.
This shouldn't take more than three repeats, and if it does, you need to factory reset, and slowly add apps back to see what's causing the problem.
___--- When it comes to actually "calibrating" one's battery, there are a couple of methods floating around. The method I first learned is to charge the phone all the way, boot into recovery immediately, and "wipe battery stats". Then reboot quickly, and run your phone all the way to death without charging it, then charge it all the way without interrupting it, and you should be good to go. Do this when changing ROMs/kernels for best results.
----When it comes to people claiming 20 plus hours of moderate/heavy use out of their current setup or other ridiculous absurdities, consider my position: No matter what you do, the Evo battery is the Evo battery. You can tweak it and customize it with kernels, ROMs, and settings, but none of that will turn it into a car battery. The main problem (besides a false sense of pride) that leads to these reports is the misunderstanding of what the usage levels are, so here’s my best summary:
* *Light usage – Phone screen actually on for maybe 4 hours. Things like a few texts, some emails, 20 minutes web browsing, etc.
* *Moderate usage – You watched a few youtube videos or similar apps, sustained web browsing, hundreds of texts, some games. Hours range from about 5-10 of screen on
* *Heavy usage – LOTS of video watching and games, or some high def gaming/movie watching for at least an hour to an hour and a half in total, with lots of emails and texts, browsing, and other app shenanigans
*I’m sure everyone doesn’t agree with all these numbers, but this is most likely a good average of what powerusers think. All specific hourage may vary due to differences in phones, batteries, ROMs, and kernels… Which also means that most battery comparisons are pointless; it’s only what you can improve on that counts!
I’ll update this whenever I see good stuff, people remind me, or I remember/come across things I do.
Hope it helps everybody!
Hit the "THANKS" button if I help you!
*All this is available in the link in my signature

I just use the power widget for data instead of juice. Don't mind clicking it once before and after I turn the screen on. Also don't always use data when its on..
Sent from my PC36100 using XDA App

martyzidek said:
I just use the power widget for data instead of juice. Don't mind clicking it once before and after I turn the screen on. Also don't always use data when its on..
Sent from my PC36100 using XDA App
Click to expand...
Click to collapse
I do that also, but the fact that juice only lets your stuff sync at a certain lengthy interval is what really makes it awesome. If you just disable the data period, your stuff won't sync correctly

I only have mail to sync and with that if I go into my mail it syncs. I go on Facebook on the browser so I don't use the app and deleted off my phone. Also I don't use Google mail or friendstream which is all deleted fully off my phone. So I don't have to worry. And most stuff that syncs on here to a set time will have a sync button or sync when you use or go into it anyways. So why not have it just sync when you actually check it? My 2 cents.
Sent from my PC36100 using XDA App

Great guide; good job!

I just turn off the background data, we have more than enough RAM to even need a task manager, I agree it sucks cpu usage and its tedious to close apps constantly and its only needed for low RAM phones these days anyway. Getting +6-8 hours use from a smart phone from moderste use is great Imo. I get great battery life already without much tweaking. I dont get what's the point of underclocking since the 1 ghz is one of the main selling points. I enjoy the obscene speed of the phone. Keep the screen dim and stay off the live wallpapers. Good write up!

Thanks for the tips and the profiles.

martyzidek said:
I only have mail to sync and with that if I go into my mail it syncs. I go on Facebook on the browser so I don't use the app and deleted off my phone. Also I don't use Google mail or friendstream which is all deleted fully off my phone. So I don't have to worry. And most stuff that syncs on here to a set time will have a sync button or sync when you use or go into it anyways. So why not have it just sync when you actually check it? My 2 cents.
Sent from my PC36100 using XDA App
Click to expand...
Click to collapse
I appreciate your thoughts, but it's just as you said: "I only have.." etc. Other people do it differently, so these tips should help THEM. Glad you know what works for you though

phatmanxxl said:
I just turn off the background data, we have more than enough RAM to even need a task manager, I agree it sucks cpu usage and its tedious to close apps constantly and its only needed for low RAM phones these days anyway. Getting +6-8 hours use from a smart phone from moderste use is great Imo. I get great battery life already without much tweaking. I dont get what's the point of underclocking since the 1 ghz is one of the main selling points. I enjoy the obscene speed of the phone. Keep the screen dim and stay off the live wallpapers. Good write up!
Click to expand...
Click to collapse
bigmoogle said:
Thanks for the tips and the profiles.
Click to expand...
Click to collapse
bludragon742 said:
Great guide; good job!
Click to expand...
Click to collapse
Thanks y'all! Please vote on the poll and rate so more people can see this for longer
Glad it's helping

abkrieger said:
I appreciate your thoughts, but it's just as you said: "I only have.." etc. Other people do it differently, so these tips should help THEM. Glad you know what works for you though
Click to expand...
Click to collapse
Anything that syncs has an option somewhere on the widget or app. All you do is hit the refresh button and updates. Same with mail. I go into my mail and it then syncs. So if its that important for friendstream or Facebook to update and sync to a certain setting then by all means juice is for you. Just a waste of battery.
Sent from my PC36100 using XDA App

martyzidek said:
Anything that syncs has an option somewhere on the widget or app. All you do is hit the refresh button and updates. Same with mail. I go into my mail and it then syncs. So if its that important for friendstream or Facebook to update and sync to a certain setting then by all means juice is for you. Just a waste of battery.
Sent from my PC36100 using XDA App
Click to expand...
Click to collapse
Say for example I have:
Weather widget on homescreen, fb widget, friendstream, news widget, two mail apps in background, google voice for vm...
-To name a few. If you use all of these, then you wouldn't also want to:
Refresh weather widget by clicking on it, which pulls up the menu, then clicking refresh - then clicking on your fb widget, which brings up the menu, and hitting refresh - going to friendstream, clicking on it, menu, refresh - same for news widget - same for mail apps - google voice...
The mail and google voice update in the background, and unless you want them always checking, or going in when you remember and telling it to refresh, the best option is to limit when it has access based on YOUR schedule.
The point of widgets is one-look convenience. Two clicks to sync a widget, taking you off the homescreen, defeats the purpose. Maybe not for you, but most people.
Now, adding all those up, that would be about 15 taps on the screen, taking all over the place, just to have your apps/widgets do what they are supposed to do. No thanks. I would rather click zero times, and have EVERYTHING sync at one time, in intervals of my choosing.
To each his own I guess

You use setcpu with kingxkernal?

phatmanxxl said:
I just turn off the background data,
Click to expand...
Click to collapse
exactly what is the background data?
what data gets synced in the backgrounds? and if u turn that off, when does it actually sync that data?

SayWhat10 said:
exactly what is the background data?
what data gets synced in the backgrounds? and if u turn that off, when does it actually sync that data?
Click to expand...
Click to collapse
You would manually have to sync data.

c_l021 said:
You use setcpu with kingxkernal?
Click to expand...
Click to collapse
No I've stopped using it with the kingkernels as per his request.
EDIT: It's supposedly HAVS kernels in general.
JUST BUMPIN THE THREAD.

To clarify, "Always On Mobile Data", when turned off, lets the 3G modem go to sleep after the screen has been off for 5 minutes. It doesn't interfere with anything like email or any other application that requires an internet connection at that moment because it turns on on-demand rather than being on all the time and wasting battery.

Great thread... I have found a good tsk killer called "system panel" it cost a cpl bucks in the market but its worth it... Old task killer apps stored working when froyo was released... System panel still works, plus it gives you a lot more control over your phone by telling you what is using what from your battery... In conjunction with juice defender... Too have the best offense to defend your charges!
Sent from the MATRIX... while plugged into my EVO... using the XDA app... from a galaxy far-far away.......

JayStation3 said:
Great thread... I have found a good tsk killer called "system panel" it cost a cpl bucks in the market but its worth it... Old task killer apps stored working when froyo was released... System panel still works, plus it gives you a lot more control over your phone by telling you what is using what from your battery... In conjunction with juice defender... Too have the best offense to defend your charges!
Sent from the MATRIX... while plugged into my EVO... using the XDA app... from a galaxy far-far away.......
Click to expand...
Click to collapse
I've had system panel pro since the day I bought my phone

Product F(RED) said:
To clarify, "Always On Mobile Data", when turned off, lets the 3G modem go to sleep after the screen has been off for 5 minutes. It doesn't interfere with anything like email or any other application that requires an internet connection at that moment because it turns on on-demand rather than being on all the time and wasting battery.
Click to expand...
Click to collapse
I'll add this to the OP, thanks for the clear description!

Biofall said:
Over the months I have been an Evo user, I have collected some valuable information that all users should probably know in regards to maximizing battery life. Here they are
My tips for good battery life:
1. Turn off all radios when not in use (gps, Bluetooth, wifi, data, 4g) using a widget like the default HTC power widget or Switchpro from the market.
To manually turn off radios without a toggle, go to menu>settings>wireless & networks
^^^^**** IMPORTANT DISCOVERY****^^^^
When you turn on your 4G radio, then turn it off, it will keep scanning and turning off all by itself.
The problem is apparently exacerbated by a 4G toggle widget, which causes the phone to automatically turn on 4G at boot. This repeating of scanning and disconnecting severely drains battery life, and sadly, no matter what ROM or kernel you use, there is only one way to fix it:
-If you don’t use the toggle widget, then you have to reboot your phone after turning off 4G
-If you do use a toggle widget, then you have to remove the widget from your homescreens, then turn off 4G via settings, then reboot.
**To check to see if this is happening, download alogcat off of the market. Look for the lines saying: I/Wimax ( xxx): <DC> Try to establish a connection to DC server.
E/Wimax ( xxx): <DC CONNECT> IO error: msg=’/xxx.x.x.x:xxxx –
Connection refused’
Over and over again.
5. Go to menu<settings<wireless & networks<mobile networks<disable always on mobile data
Click to expand...
Click to collapse
Wow, this is awesome man. #1 is a huge discovery for sure. we just got 4g here recently and I started having this huge battery drain problem. I have been monitoring my phone with system panel and found "suspend" to running my cpu full bore 100% of the time.
if your search for suspend you can find a few threads here and over at androidforums. no one had seemed to find the issue of why suspend is always running. but it is for me definitely being caused by 4g as you describe.
I didn't think it was 4g because I found a wimax process at 0%
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but after playing with 4g and your ideas here I can make this suspend start and stop at will now.
some screen shots of system panel with the suspend issue on.
here are some screen shots after finding this thread last night around midnight and killing 4g and rebooting.
thanks, this saved me from loading up an older nandroid that I didn't have this issue. but now I know its not rom or app related.
here is what I did to stop suspend/4g from running. I keep mobile data always on unchecked. and I use a 4g toggle from switch pro (well not anymore)
I turned off 4g through my toggle. reboot phone, suspend is still running and the phone will not sleep. I then go into settings - wireless & networks - mobile networks, I then check mobile data always on and then uncheck it. suspend will now stop and phone will sleep. data always on check and uncheck only works after a reboot.
anyways I think this find is awesome! and maybe we should mention that this 4g problem and this suspend process are one in the same. as it seems people have been having this suspend process problem for months on end with no solution.
I really didn't think it could be 4g as I saw wimax process at 0% and a simple reboot didn't end it. I thought it had to be an app.
thanks bro

Androids energy efficiency?

Uhh, I cannot post this in development as I am still a newby :-(
However:
Hello,
I came from Symbian (Nokia C7-00) and liked the phone very much. Everything worked the way it should. (I was especially interested in office functionality.)
Now I bought a Galaxy Note and I really love the hardware.
But I discovered that it uses much energy and it doesn't like to sleep as often as it could. (I already returned to Android GB, which gives a better experience, but there still is room for improvement.)
1. Sometimes even though the phone simply lies around and does nothing, the last app that I forgot to close is hindering the CPU from sleeping. Why? The is no need.
2. At night I am used to turn the phone into flight mode. However I found out that this isn't the best thing for Android. In the morning, when the email app goes to push phase, the phone leaves sleep mode and seems to excitedly wait for the flight mode to get switched off. This uses *quite* a bit of battery!
These things seem strange to me. My impression is that Android is not really optimised for cell phones. If the screen is off, there is no need for CPU time, doesn't it? There is nothing urgent to do; everything could be done slowly; no hurry.
I guess the battery could last *much* longer if this would be improved.
Greetings,
corcov

corcovo said:
Uhh, I cannot post this in development as I am still a newby :-(
However:
Click to expand...
Click to collapse
Which is handy, because this thread has nothing to do with development and thus saved you from some abuse!
Regards,
Dave
Sent from my GT-N7000 using Tapatalk 2

But I already know how to click the "thanks" button

corcovo said:
But I already know how to click the "thanks" button
Click to expand...
Click to collapse
Doesn't matter.
Development, if you did not create IT, then it does not belong in development. Remember that. Otherwise you will get flamed.

Android is a mobile OS, so of course it is optimised for smart phones - not ordinary cell phones. Android acts like a computer and, if you keep a computer running Crysis 2 for example, it would burn more power than a computer just playing some music off of iTunes.
In terms of improving your battery, check your brightness. You can download widgets to adjust the brightness right from the home screens. I use these to set my brightness to its lowest whilst at home (perfectly adequate for night and indoor use away from sunlight) and turn it onto automatic when I go outside. This has saved my a bunch of battery.
If you are running a stock Samsung ROM, turn on power saving mode. I always leave it on and, frankly, I have no idea as to what it actually does. I haven't noticed a performance drop in the slightest, but if it saves a bit of battery it is worth it. Also, you could try Juice Defender or some other battery saving apps which work for some people - others not.
Finally, ensure you haven't left GPS, Bluetooth or WiFi on when not needed. Try downloading CPU Spy to check your phone deep sleeps, yet mine even without it ever deep sleeping gets around 16 hours of battery life which is still the best I have ever gotten on a smart phone. Bettery Battery Stats can show you wake-locks (apps that are keeping your phone active) also.

Brad387 said:
Android is a mobile OS, so of course it is optimised for smart phones - not ordinary cell phones.
Click to expand...
Click to collapse
I see. Well it might be a nice feature if one could add an "now be a cell phone"-option for energy enhancement, which means: if screen if off, sleep.
c.

corcovo said:
1. Sometimes even though the phone simply lies around and does nothing, the last app that I forgot to close is hindering the CPU from sleeping. Why? The is no need.
Click to expand...
Click to collapse
There are some legitimate needs for keeping the CPU from sleeping for a short period of time - such as finishing a sync operation (otherwise, the radio power spent beginning the sync is wasted). Unfortunately, some poorly written applications (Facebook for example) abuse the wakelock mechanisms and hold wakelocks when it is not justified.
2. At night I am used to turn the phone into flight mode. However I found out that this isn't the best thing for Android. In the morning, when the email app goes to push phase, the phone leaves sleep mode and seems to excitedly wait for the flight mode to get switched off. This uses *quite* a bit of battery!
Click to expand...
Click to collapse
This is not something I have ever encountered myself. "push" relies on the server to trigger something - in airplane mode, this trigger can't happen.
These things seem strange to me. My impression is that Android is not really optimised for cell phones. If the screen is off, there is no need for CPU time, doesn't it? There is nothing urgent to do; everything could be done slowly; no hurry.
I guess the battery could last *much* longer if this would be improved.
Greetings,
corcov
Click to expand...
Click to collapse
Android is well optimized for cell phones - However, it assumes that third-party applications follow Google's recommendations for power management. Unfortunately, many of them do not. The number of IM applications which choose to use their own proprietary and poorly optimized network protocols (such as Skype, it's atrocious) as opposed to Google C2DM (optimized and efficient) is astonishing.
An interesting note was that I believe much of the focus at Google I/O was on reminding app developers that they need to play nice with the system and other apps.
There are some cases where there are device-specific nonoptimalities. Compared to most Nexus devices, Exynos devices have an absurdly long time to resume from wake (1000 milliseconds), and during that resume cycle CPU frequency is locked to 800 MHz and cpuidle is disabled. This is one of the #1 causes of power drain on our device. This is also exclusively a Samsung kernel/hardware architecture problem that does not affect the Nexus S (similar CPU, but completely different modem interface) or the Galaxy Nexus (different CPU/modem interface).
In the case of our device, the modem is hung off of the CPU on a USB bus - this makes for very long resume times.
Here are obvious reasons the CPU should occasionally turn on when the screen is off:
1) MP3 playback in the background
2) Handling of background syncs - e.g. when an email or Google Talk IM comes in, wake the CPU, handle it, and pop a notification sound, then go back to sleep. Normally, this means the CPU sleeps while waiting for an interrupt from the WLAN chipset or the cellular radio. Unfortunately, some apps drive incoming data to the device far too frequently. (See my above rant about Skype's network protocols being crap compared to Google's C2DM protocol.)
3) Handling of scheduled wakeups (alarms, calendar events, etc) - these are rare and almost never consume power
Most power drain is from item 2, with third-party apps frequently behaving extremely poorly compared to Google's own application suite and sync protocols.

Now this an extensive answer which is very informative and helpful for me since insights are always soothing. Love it. Thanks!

not much to add after Entropy, but if you feel the need to get some control over battery usage you could try betterbatterystats app (and the thread) to identify battery eaters, besides that, there are few apps to check what is going on with your system when it sleeps:
- CPU Spy to show cpu states time
- Autorun Manager or Autostarts to disable triggers causing apps like FB to run without reason (those which you will find with betterbatterystats)
- Battery Monitor Widget, to check battery current consumption (mA) - this app is generally not recommended, because Note's hardware does not report the actual current, so the readings are highly estimated and because when poorly configured it can drain your battery faster, BUT otoh with refresh rate set at 5 minutes or more, it can give you some approximate orientation on how much battery you lose (better than counting %/hour by yourself) at negligible battery usage
- also, if you feel the need to disable net and sync during night, you could automate it using "lama", which is free, and in my experience does not eat much battery by itself
- and last but not least, avoid taskillers, those apps may have adverse effect, i.e. self restarting apps (by the triggers mentioned above), will get killed then restarted and so on and so on, leading to much higher battery drain

[Guide] Battery & Performance Tips

Just thought I’d put a short guide together on what I think are some things to do to get the most out of your spanking new Samsung S6 when you get it or you already have it. Most of you guys might already know most of this or might not. Just thought it might help some people. This ain’t rocket science but every little bit helps!
Battery:
This is the hardest thing to do because like a fingerprint everyone has a different set up with apps and how they use their phone (wifi vs 3g vs 4g etc) that screen on time will always vary. Also you don’t want to turn everything off and cripple your brand new smartphone just for your battery. There’s a balance.
However here are some general things to do that do help:
1. Install Greenify from the Playstore. I have found this is the number one way to stop drainage. This app will hibernate apps when not in use. It doesn’t stop their functionality at all but hibernates them.
2. Don’t use Google Now. I think it’s a gimmick and does bugger all for me however if you use it it will drain your battery big time. Of course if you love it then use it!
3. Don’t use location services. Another big drainer. Just use it when you need it. However if you have apps that need it then of course leave it on!
4. Use ‘auto’ on screen brightness.
4. Don't use the Facebook app. It's a massive drain of battery. And Facebook is awful.
5. If you continue to get big drainage then download Gsam battery from the Playstore and look at the ‘wakelocks’ – this way you will be able to see what’s draining your battery. As a general rule your phone should go into deep sleep for at least 80% of the time.
This way you should get 5+ plus hours of Screen on Time.
Performance:
Here are a few things only that really do help with speed and performance - even though this phone really doesn't need it it still helps!:
1. Go to Dev Options and change the transition animation scale, the animator duration scale and the window animation scale to 0.5. This little thing speeds up your phone like nothing else.
2. Root* your phone with Cf auto root. And then start debloating. Get rid of whatever you want by downloading Titanium Backup and going into each app and freezing whatever you want. Freezing is safer than uninstalling but does the same thing. Debloating is a must!
*And yes I know the Knox arguments for not rooting but I've rooted every Samsung phone I've ever owned and sold every Samsung phone I've ever owned.
*And yes I know that you won't be able to use Samsung Pay but it ain't coming out for months and there's too much freedom you get from rooting to not do it because of this.

Just an FYI... Google Now does not drain your battery!!

JoeFCaputo113 said:
Just an FYI... Google Now does not drain your battery!!
Click to expand...
Click to collapse
https://www.google.com.au/search?hl=en-AU&ie=UTF-8&source=boatbrowser&q=Google+now+drains+battery

poczynek said:
Just thought I’d put a short guide together on what I think are some things to do to get the most out of your spanking new Samsung S6 when you get it or you already have it. Most of you guys might already know most of this or might not. Just thought it might help some people. This ain’t rocket science but every little bit helps!
Battery:
This is the hardest thing to do because like a fingerprint everyone has a different set up with apps and how they use their phone (wifi vs 3g vs 4g etc) that screen on time will always vary. Also you don’t want to turn everything off and cripple your brand new smartphone just for your battery. There’s a balance.
However here are some general things to do that do help:
1. Install Greenify from the Playstore. I have found this is the number one way to stop drainage. This app will hibernate apps when not in use. It doesn’t stop their functionality at all but hibernates them.
2. Don’t use Google Now. I think it’s a gimmick and does bugger all for me however if you use it it will drain your battery big time. Of course if you love it then use it!
3. Don’t use location services. Another big drainer. Just use it when you need it. However if you have apps that need it then of course leave it on!
4. Use ‘auto’ on screen brightness.
4. Don't use the Facebook app. It's a massive drain of battery. And Facebook is awful.
5. If you continue to get big drainage then download Gsam battery from the Playstore and look at the ‘wakelocks’ – this way you will be able to see what’s draining your battery. As a general rule your phone should go into deep sleep for at least 80% of the time.
This way you should get 5+ plus hours of Screen on Time.
Performance:
Here are a few things only that really do help with speed and performance - even though this phone really doesn't need it it still helps!:
1. Go to Dev Options and change the transition animation scale, the animator duration scale and the window animation scale to 0.5. This little thing speeds up your phone like nothing else.
2. Root* your phone with Cf auto root. And then start debloating. Get rid of whatever you want by downloading Titanium Backup and going into each app and freezing whatever you want. Freezing is safer than uninstalling but does the same thing. Debloating is a must!
*And yes I know the Knox arguments for not rooting but I've rooted every Samsung phone I've ever owned and sold every Samsung phone I've ever owned.
*And yes I know that you won't be able to use Samsung Pay but it ain't coming out for months and there's too much freedom you get from rooting to not do it because of this.
Click to expand...
Click to collapse
do you have any battery life screenshots of your s6 with these steps done?

This is not untrue advice but it is also not new to this device at all. This is the same advice on android years ago and it's basically saying turn off everything that drains the battery then you get 5 hours of screen on time. Well most people want to use google now, facebook, and location services so that defeats the purpose of the phone. Really there needs to be some serious improvements in battery tech but so far we as consumers are allowing companies to get away with putting sub par battery performance in their flagship phones and we keep buying them anyway. I am guilty of it too but it does not give companies any real incentive to focus on battery life.

poczynek said:
https://www.google.com.au/search?hl=en-AU&ie=UTF-8&source=boatbrowser&q=Google+now+drains+battery
Click to expand...
Click to collapse
Every link is like 6+ months old. It will not drain your battery if you keep location off...

JoeFCaputo113 said:
Every link is like 6+ months old. It will not drain your battery if you keep location off...
Click to expand...
Click to collapse
Of course if you turn location off but that's the point - it's made to be used with location on which will drain battery.

poczynek said:
Of course if you turn location off but that's the point - it's made to be used with location on which will drain battery.
Click to expand...
Click to collapse
I have a Tasker profile set to automatically turn on GPS whenever I go into Google Now, then as an exit task it automatically turns off GPS. So no battery drain for me :good:

JoeFCaputo113 said:
I have a Tasker profile set to automatically turn on GPS whenever I go into Google Now, then as an exit task it automatically turns off GPS. So no battery drain for me :good:
Click to expand...
Click to collapse
How does this help you get the benefit of google now such as parking reminders, etc?

km8j said:
How does this help you get the benefit of google now such as parking reminders, etc?
Click to expand...
Click to collapse
Parking reminders?? I don't need that as I live in upstate NY (Dutchess County)... pretty hard to forget where you park your car lol.

@poczynek
I have a GS4, and I'm looking to get a GS6 soon.
I have read your post and I am not sure if what you claim will bring any evident increase in battery life at all.
1. Greenify - What does it do? Why should I greenify an app? What apps/services did you greenify to give you an increase in battery life?
I can't say for sure but if I ran my GS4 without disabling apps vs disabled apps I bet the battery life/screen on time would be similar.
However I did disable a whole bunch of Samsung and other bloatware apps that came on my phone because I don't want their bugs or services to be running unnecessarily.
I have a looked at Greenify to some detail and thought to myself why bother? All of the services and apps that are running are fine...why would I need another app "Greenify" to manage something that is native in Android which is to simply disable bloatware apps.
Please provide a real example of what you would Greenify, as opposed to simply disable and what/how it benefits you?
I think I have over 70 apps disabled on my GS4 because they are things that I don't use.
2. Google Now - well this depends on if you use Google Now Everywhere, with it's ability to talk to the phone by saying "OK Google". In addition, Google Now has that card system which will send you news and other related cards based on what "you" the user configures. I'm not sure if you do setup all of these cards results in a great amount of battery drain either. I personally don't use Google Now voice activation or the cards, but I have not disabled the app.
I can agree with you that Google Now's voice system will drain the battery, but that's expected because it is always listening (if you enable that).
3. Location Services - by this you mean the GPS/Cell/WiFi location capabilities? I can tell you that I leave my GPS on GPS Only mode. I don't want my phone to use cell towers or WiFi to help improve upon the location of me. I have had no issues with doing this. I do believe if I use cell towers and WiFi to improve my location then the battery drain will be higher, but wouldn't that be dependent on if an app uses the location in the first place?
I mean, if I have my location set to highest accuracy and I leave my phone on over night, there should be no apps that would utilize the location services. Unless an app, for example Google Now decided to check where I am, I don't see the problem of leaving your location services set to high accuracy.
I personally use GPS only and I can confirm that no app triggers the location services during the day or night unless I open an app that requires it, for example Google Maps or a Weather app that I may be using the GPS to gather my location information. PS: I use AccuWeather and I have disabled use GPS for location and rather it uses my actual location based on my city and state.
4. Auto Brightness - although Samsung has one of the best auto brightness sensors for Android, there is much controversy (google it) that Android drains a lot of battery when using Auto brightness because it has to constantly use the light sensor to determine your screen's brightness.
When I got my GS4 I immediately disabled auto brightness and I manually control it, simply have 3 settings. I have 10% brightness for day time use, 100% for outdoor/car use, and 10% with screen filter set to 20% for bed use (late night and early morning). I will be doing the same with the GS6.
I can't speak entirely for auto brightness and whether it saves or consumes battery life, but from my research, people should just manually control it as opposed to using auto brightness, the exceptions are iPhones and Samsung phones.
Furthermore, during my testing, I ran a Geekbench 3 battery life test on my phone with the following conditions.
WiFi, GPS = On
Screen Brightness 10%
Bluetooth, Mobile Data, NFC = Off
Result = 2 hours and 55 minutes (screen on time)
Same test with screen brightness 100%, result = 2 hours and 45 minutes (screen on time).
This shows that in continuous use the real world difference in battery life between 10% and 100% brightness is only 10 minutes. Remember this is for the GS4. I am not sure how the GS6 will handle both extremes in terms of battery life for the screen brightness. My guess is that there will be little difference between using 10% and 100% in real world numbers like shown above.
5. Facebook and FB Messenger - you state don't use it but don't pose an alternative, let's be realistic a ton of people use it, by simply stating don't use it and not providing an alternative is somewhat pointless. My GS4 is rooted and I have been using BetterBatteryStats (BBS) for 2 years now and I can say for certain that FB does not drain the battery. However I can see that FB and Messenger do create a lot of Alarms, about 10 - 30 per hour. But when I look for Kernal or Partial wakelocks I see no correlation to battery drain.
I have even removed both apps from my phone and used my phone during a regular work week and I have found no real world difference in battery life.
However it is possible that FB and Messenger could have had a bug that caused battery drain, I have physically seen this issue with Viber and cross checked with BBS to confirm. But that was an old version of Viber, and since then Viber has been working fine.
I personally helped Jango Radio fix their battery drain issues. For example you open the app press the home key, then you will see that your phone will be awake for as long as the app is sitting in the background. I told the dev team to fix it and they did. I used BBS and watch the Partial wakelocks to confirm the issue.
Your final statement of using Gsam is fine, I've used it too, no battery life monitor is perfect, but at least they can help determine if there is a rogue app.
In terms of performance, I agree with doing 0.5x for all transitions, it does make a big difference. Less waiting for apps to close/minimize or open.
In terms of rooting and debloating with Titanium backup, that is something that rooted users can do.
I agree uninstalling system apps/pre-loaded apps will give you some space back.
Freezing an app versus disabling an app...well disabling should be good enough for people especially since you don't need root.
If you freeze/greenify apps versus simply disabling apps you don't need/use I'm sure the performance improvements would be identical, however I don't think there is much of an improvement regarding either methods.
A simple way to test this is to take a stock S6, run a benchmark, like Geekbench, and then root the S6 and freeze everything that is not needed and run Geekbench again. If there is no real numerical change in the benchmark, then I really doubt you will feel a real world difference in performance.
Let me know what you think.

MysticGolem said:
@poczynek
5. Facebook and FB Messenger - you state don't use it but don't pose an alternative, let's be realistic a ton of people use it, by simply stating don't use it and not providing an alternative is somewhat pointless. My GS4 is rooted and I have been using BetterBatteryStats (BBS) for 2 years now and I can say for certain that FB does not drain the battery. However I can see that FB and Messenger do create a lot of Alarms, about 10 - 30 per hour. But when I look for Kernal or Partial wakelocks I see no correlation to battery drain.
Click to expand...
Click to collapse
Browse to Facebook on your phone using Chrome then go to chrome settings and press "add to home screen". Problem solved [emoji6]
I do this and get much better standby battery life. I can't part with messenger though, but you can access your messages from the mobile site too if you don't care about getting notifications.

Let's use the most powerful Android smartphone currently on the market as a dumb phone is basically the gist of the advice given!

Thanks for your tips. Useful for me

Just scored 29hours runtime i thought impossible in first few days. With just lux app and tasker auto sync only. No root.
Edit: with greenify too but i find it useless without root
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Jesus, you've basically disabled your phone, why not just return it and go with a pre-paid flip phone? Listen I understand there's definitely a battery issue with the S6 but come on guys, just have a charger with you until this is addressed via an OTA update or something.

Using GSAM, how do I see Wakelocks and how do I see Deep Sleep?

TL24 said:
Jesus, you've basically disabled your phone, why not just return it and go with a pre-paid flip phone? Listen I understand there's definitely a battery issue with the S6 but come on guys, just have a charger with you until this is addressed via an OTA update or something.
Click to expand...
Click to collapse
Good luck with that [emoji1]
There is mucho more things i would like to disable of course. And they are useless to me too. I just shared my settings no need for calling flip phone unless it is samsung i9230 [emoji16]

JoeFCaputo113 said:
I have a Tasker profile set to automatically turn on GPS whenever I go into Google Now, then as an exit task it automatically turns off GPS. So no battery drain for me :good:
Click to expand...
Click to collapse
I know this is old, but can you lay out how you set up this tasker profile? I'm rooted, with secure settings installed, but gps is still inaccessible through tasker. tia

fachadick said:
I know this is old, but can you lay out how you set up this tasker profile? I'm rooted, with secure settings installed, but gps is still inaccessible through tasker. tia
Click to expand...
Click to collapse
1. Go to profiles
2. Click the "+" in the bottom right
3. Click application
4. Select maps and any other app you want to automatically turn on GPS
5. Add task... Secure settings GPS on