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I've done a little experimenting, made a spreadsheet and all, to see what makes a difference to the battery drainage. Here are my findings -
Live Wallpaper: YES
Connection: 3G
Taskiller Widget: YES
Battery Drain: 7.5% per hour
Live Wallpaper: YES
Connection: 3G
Taskiller Widget: NO
Battery Drain: 4.5% per hour
Live Wallpaper: NO
Connection: 3G
Taskiller Widget: NO
Battery Drain: 4.4% per hour
Live Wallpaper: YES
Connection: 2G
Taskiller Widget: NO
Battery Drain: 4.15% per hour
On average, using one of the 4.XX% scenarios, if it was left asleep for the hour it drained battery 2-3% per hour.
Heavily used for the hour, browsing the web on lunch drained battery 6-9% per hour.
Mind you, today has been relatively light use all day, Live WP, 3G and I've got 3.7% all day. At this rate, I would probably get 27 hours use. The battery does seem to get better after a weeks use, so don't judge it straight out of the box. I know some people said using 2G would save battery, I was surprised how little it did.
One thing I used to do on my Hero to save battery was turn of auto rotate. Tomorrow I might try that and see how it helps battery life.
Are there any other things you'd like me to test?
I don't believe so, no. I might try again next week with them off, just to check it wasn't the battery getting better that scewed results, but so far, they look to make no difference
It seemed that the live wp drained my battery more when I used it, even when it wasn't on much. I may do another test to see.
I find that the battery lasts a little longer if you power the phone off before charging it. Today I've been streaming Last.fm, played about 20 minutes of Julelust in the bathroom and did quite a bit of GTalk chatting, and my battery is at 85% after about 3 and a half hours.
I wonder if it depends which LWP you use? I was using the Live Earth Wallpaper...
Also, I might try underclocking to 600mhz for a day, to see what that saves.
For me, I'll probably use it with all the bells and whistles on, even if I only get 20 hours life, as long as I know I'll be home to charge it that night. If I know I'm out for a couple of days, I'd like to know what settings I can change to extend it up to maybe 40 hours hopefully.
I should also do a day where I turn of data sync, I think that makes a big difference. If you turn it off with the power widget, will it stop everything using data? E-mail, apps, everything? Or do I need to actually turn data off for that?
Very interesting. Which task killer widget did you test? Thanks.
I think it was the one from ES Task Manager. Now I've got Advance Task Manager and just place a link to the app rather than the widget. It's still only 2 presses to kill everything.
I have the paid version of TasKiller, which I used for a long time on my Hero, I should test that at somepoint too...
nice topic.
Can you tell which Rom are you using?
Default?
Cyanogenmod?
Modaco?
I don't think this is relevant unless he's running a stock ROM with no 3rd party apps installed. Also, if you believe the battery gets better after a week of use then why perform any tests until after that week has passed???
This testing is flawed in another way; inconsistent usage patterns.
peliROJO said:
I don't think this is relevant unless he's running a stock ROM with no 3rd party apps installed. Also, if you believe the battery gets better after a week of use then why perform any tests until after that week has passed???
This testing is flawed in another way; inconsistent usage patterns.
Click to expand...
Click to collapse
It surely is.
It changes many thing including if it's needed to kill an app to boost memory etc.
peliROJO said:
I don't think this is relevant unless he's running a stock ROM with no 3rd party apps installed. Also, if you believe the battery gets better after a week of use then why perform any tests until after that week has passed???
This testing is flawed in another way; inconsistent usage patterns.
Click to expand...
Click to collapse
So leave the thread and don't be so negative.
Yes, Modaco's 1.5, some in Cyanogens. Why would an app in one ROM use more battery than it does in another? This testing was for me, why would I test in any ROM other than the one I use? I just thought others might benefit from what I found.
Why should no 3rd party apps be installed?!?! Some of these are what I want to test!
I did wait a week...
Of course there are inconsistent usage patterns. Even if you tried I bet you couldn't do exactly the same things every day at the same time with your phone.
This is not a scientific experiment, it's just my findings. I'm not claiming I can tell you how long your battery will last, as I said, I just wanted to know what things helped and what things hindered. Please have the good manners to not bothering to return. Thanks.
Hey guys im in the process of doing a little experiment to see actually how much Juice Defender with Ultimate Juice actually improves the battery life on my Evo4G. I'm sure this has been done somewhere else i just couldn't find it so i decided to do the experiment myself and post my findings this may be useful to some people or may not!
Phone: Evo 4G
ROM: Cyanogen Mod 6.1.2
Kernal: Zendroid BFS @ 1.52ghz w/ smartass scaling
Launcher: Go Launcher
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Phone running Juice Defender With Ultimate Juice
Phone Unplugged At 11:42am
Phone Died At 8:59pm
Usage: For the most part it was moderate use, no gaming, 2 calls lasting for a total of aproximatly 45 minutes. 120 texts were sent and received 146 within the time frame. There was no browser usage just mostly texting like i said. 3 Pictures were taken. No Wifi. Bluetooth or 4G used either.
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Phone running without Juice Defender With Ultimate Juice
Phone Unplugged At: 2:50pm
Phone Died At: Never
Usage: Well my phone has been unplugged since 2:50pm and its now 12:35am and my battery is sitting at 55%. Weird... very weird. I had about the same usage as yesterday i played 1 game for a total of probably 10minutes and installed 4 apps. A had wifi enabled for probably an hour total.
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Final Thought: I think Juice Defender doesnt help at all, infact it seems to hurt your battery more than anything. I think it may be because its constantly turning things off and back on consuming battery? Thats the only thing i can think of. Does anyone else have any thoughts on why this is? Using Juice Defender reduced my battery life dramatically it almost cut its life in half as a matter of fact. Please share your thoughts on why this is people!
bump bump bump!!!!!
beanx said:
Hey guys im in the process of doing a little experiment to see actually how much Juice Defender with Ultimate Juice actually improves the battery life on my Evo4G. I'm sure this has been done somewhere else i just couldn't find it so i decided to do the experiment myself and post my findings this may be useful to some people or may not!
Phone: Evo 4G
ROM: Cyanogen Mod 6.1.2
Kernal: Zendroid BFS @ 1.52ghz w/ smartass scaling
Launcher: Go Launcher
-----------------------------------------------------------------------------
Phone running Juice Defender With Ultimate Juice
Phone Unplugged At 11:42am
Phone Died At 8:59pm
Usage: For the most part it was moderate use, no gaming, 2 calls lasting for a total of aproximatly 45 minutes. 120 texts were sent and received 146 within the time frame. There was no browser usage just mostly texting like i said. 3 Pictures were taken. No Wifi. Bluetooth or 4G used either.
-----------------------------------------------------------------------------
Phone running without Juice Defender With Ultimate Juice
Phone Unplugged At: 2:50pm
Phone Died At: Never
Usage: Well my phone has been unplugged since 2:50pm and its now 12:35am and my battery is sitting at 55%. Weird... very weird. I had about the same usage as yesterday i played 1 game for a total of probably 10minutes and installed 4 apps. A had wifi enabled for probably an hour total.
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Final Thought: I think Juice Defender doesnt help at all, infact it seems to hurt your battery more than anything. I think it may be because its constantly turning things off and back on consuming battery? Thats the only thing i can think of. Does anyone else have any thoughts on why this is? Using Juice Defender reduced my battery life dramatically it almost cut its life in half as a matter of fact. Please share your thoughts on why this is people!
Click to expand...
Click to collapse
thanks for the info. i try to tell people that juice defender doesn't help. but no one listens so i gave up and just tell them cool app and walk away lol.
very helpful post. I noticed too it doesnt seem to really help it just monitors mobile data and turns it off when screen is off and occasionally powers it on to download emails and ****. I dont like it because i like to kno when i get an email instantly versus it checking every 30 min.
I also found that juice defender seemed to have a negligible impact on my battery life while also decreasing speed of sync/convenience. You'll notice that it also makes android system skyrocket towards the top of the battery use list.
On a related note, I also found that setcpu profiles don't have an impact on battery life and may even hurt.
Ultimately, android is optimized to manage a lot of these things on its own and introducing an app that consumes battery both monitoring and brute forcing some of these activities doesn't make sense. The only active monitoring app I use now is Tasker for some specialized automation activities.
i cant believe this is an app that most people recommend to improve battery life tho. Especially with how much it hurts rather than helps. Very disappointing.
It has helped mine because I use the widget to manually shut it off and on. I don't let it control it. Since the epic doesn't have the shut off data in the power menu its good for me. Otherwise I agree with you all. I keep my data off until I need it to look something up. Personal preference. But hey it does shut my data off when I tell it to.
Sent from my Epic 4G
Rom: Never stock, but always with some Gingerbread.
I had been using juice defender and setcpu for a while trying to get the best battery life, but I ditched them both about a month ago and I'm getting better life than ever before lol
I've got 58% left in the battery and the phone has been up for 32 hours. I thought I was helping by micromanaging the phone with JD but I think it was really just hurting it.
deathsled said:
I've got 58% left in the battery and the phone has been up for 32 hours. I thought I was helping by micromanaging the phone with JD but I think it was really just hurting it.
Click to expand...
Click to collapse
32 hours up and only down to 58%? Mind if I ask how you set thigns up that your phone is so energy efficient?
It was a great application, Donut times, it literally made my Magic 32a survive the day against the not-even-a-day battery life at those times. Nowadays it is simply useless due to android better app management.
Hmmm...I have been using this for a few months now and I've seen dramatic improvement in my battery life. I usually unplug my phone at 7 each morning and by noon on moderate usage days I'm at 60%. Using JuiceDefender, my phone is typically at 80%. By 5pm with its only at %60. Normally I would get home at 5 and it would be around 30%. Interesting.
Running Samsung Captivate
Stock Android Eclair 2.1
Rooted
Zeam Launcher
With more iterations of Android they are improving power managment, Ya back a little bit ago this helped some people alittle it closing out processes and way to handle things but with android development alot of this stuff is getting worked into the OS, basically now all your doing is running a app constantley that does something handled by the OS now in newer builds.
I wonder in some cases if the juice defender and the OS both trying to do power management if it can actually cause more power loss due to a conflict in the two trying to controll items. Of course OS should have higher pid but could cause some of your increased power drain using both
try the beta
im using it on my epic and my evo i think it helps both but i am also using the free beta i dont think the regular one works
i'm shocked there's even a thread for this. i put it on a stock epic and it made a WORLD of difference.. especially in locations where my signal was poor and evdo service kept dropping. my issues with it are of a different nature. seems to get corrupt alot and the wifi locations service sucks
Hmm, i'm confused on how this could actually hurt battery life, especially by the amount you displayed unless you have it doing all kinds of other management as well. I have mine setup to only manage the data APN, disabling on screen off, and seem to have gained decent battery life from it. The widget to toggle data on/jd on/off is very handy as well.
Pretty sure android doesn't do anything natively that turns off data when phone is at rest/screen off, does it? Someone please correct me if i'm wrong.
I will admit, the new versions of JD do seem to be pretty bloated and sluggish.. i've been on the fence of whether to remove or not... The main reason i keep it on my device is because i work in a basement and get about 65% TWS and severe battery drain from that. With JD managing 3G, it helps mitigate that somewhat, and having it be automatic is much more convenient than toggling it manually all the time.
I may have to join you on some testing, because if JD is not gaining me anything, i'll definately be removing it as it sometimes causes some initial sluggishness when turning the screen on. From daily usage experiences (and i watch it like a hawk), my battery life has definately not been made worse.. older versions seemed to net me more life, and i'm undecided on the new versions. Not enough time with it on/off to decide yet.
Most Def Work
JD helps... it will slow down notifications and stuff, if you need always on data then this won't help. However, during the day I'm usually already online and don't need non-stop notifications and if you use JuicePlotter you can clearly see that while sitting idle with JuiceDefender on you use significantly less battery than if you don't have JuiceDefender active and have it sitting idle.
for those that think jd works...
are you using the free, pro, or ultimate version? looking to buy if it really saves battery life.
which configs did you use? I had it a few months ago and my battery did actually improve. Trying some different settings makes a huge improvement.
I am using superpower now. (from XDA actually) And this is really working, it also takes some configuration, but eventually it will benefit your battery life.
Superpower turns data to 2g when your screen is off, disables wifi and bluetooth and sets your cpu to a 400mhz cap (at least with my phone) I noticed a 1% overnight drain and a 200% increase in battery life. (basically I do two days with heavy use vs. one day before)
Hope this helps some people!
The only thing that actually changes the battery in an evo is a kernel. No quick fix app is going to help how your system interacts with your battery! Senseui is garbage and it sucks up battery life like no bodies business!
I have to say it, the battery life on my tab stinks.
Regardless of Rom or clock speed I am lucky if I get 4 and a half to 5 hours! Pretty much constant use.
Is this normal?
Anyone got any ideas how to improve this?
Cheers
MJ-12
Are you streaming something for 4-5 hrs? If not, Check your running apps. You should be getting better than this. I get right around 8 hrs or internet, email and such. It does drop while playing games though.
Since you're rooted, I'd also wipe battery stats and fully charge to see if that improves it.
Yeah that's not normal at all. I usually get at LEAST 10 hours of battery life with pretty heavy use.
I get 10-12 hours with heavy jse....so thats not at all normal....r u overclocked?
Sent from my Milestone using XDA App
Benn flashing a lot? Sometimes it takes a bit of use to get good batt life. This was the case with my phone.
I'm currently on deadly venom v 8.2 on mf3. I only get 2-3hrs screen time w this device. I already greenified all everything connected to Google like maps, services, search, etc. I hate the fact that you even have to do that just to maximize battery life. I don't like turning on and off stuffs like location services, blue tooth, and wifi. I always leave them on. I hate the fact that you need to lower the brightness or readjust the brightness again and again just to increase battery life. That's a no no! I have bad eyes, I use lux dash as my auto brightness. I don't have any background widgets on my phone. My home screen is just filled w apps (no widgets) because they say widgets eat battery. My phone can last the whole day when it's on idle. Battery is 3-4.5% per hour when on idle. It balloons to 15%—25% per hour once I start using it which is very annoying. These are the only apps I use and I always close them all the time. Instagram, Facebook, Twitter, viber, Google voice, BBM, Gmail. What can you guys suggest to improve battery life? I don't believe people saying that they last 2 days or even the whole day. That's complete BS. I'll attach a screen shot on from better batter stats when I started making this, I started from 100%
12% in 33mins. Geeeez
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
If you need a phone with good battery life you should of bought a note 3 or LG g2.
Sent from my SAMSUNG-SGH-I337 using Tapatalk
You might want to get a new battery... My phone is running Graviton and I have excellent battery life. I keep power saving mode on, use Greenify, turn off Wifi, GPS, and Mobile Data when NOT needed. Generally I push at least a day and a half out of this stock battery before doing a complete charge. I try my best to not let the battery drain 100%.
Sent from my SGH-I337 using Tapatalk
If it went from 100 to 12% in 33 minutes you have a bad battery, plain and simple.
jd1639 said:
If it went from 100 to 12% in 33 minutes you have a bad battery, plain and simple.
Click to expand...
Click to collapse
Right. Bad battery is very likely. That and should be using better battery stats to get a picture of what's going on.
It's not the phone and naming the ROM as if that has something to do with it is bad form.
.
NighthawkXL said:
You might want to get a new battery... My phone is running Graviton and I have excellent battery life. I keep power saving mode on, use Greenify, turn off Wifi, GPS, and Mobile Data when NOT needed. Generally I push at least a day and a half out of this stock battery before doing a complete charge. I try my best to not let the battery drain 100%.
Sent from my SGH-I337 using Tapatalk
Click to expand...
Click to collapse
What he said. I am stock but rooted and using Juice Defender, Greenify, toggling gps and mobile data off etc, I get full day on high usage and 28 hours on light usage. Must be a bad battery.
Meh, did some math. 12% in 33 min did cross-multiplication for 99% battery used, got 272.25 minuets divided by 60 to get an hourly total. You'll be getting 4.5 hours on screen time.
I don't personally think that's bad. Did some more calculations for Nexus 5 on battery. Heard it's getting about 3.5 hours screen on time, so with that to get your 4.5 hours screen on time the nexus 5 would need about a 2960mah battery.
Well, firstly, you should believe that some people's last 2 days or so; as I've seen photos posted by "battery life enthusiasts" in the better-battery-stats thread and other places showing it's possible. 12% in 33 minutes isn't that bad and is around a stock TW battery expectancy.
You're on MF3.. which means you cannot run an AOSP rom, so almost anything your running isn't going to be extremely lightweight for battery. ALL TW based roms will drain battery more than a single AOSP or GPE rom, as the system is a lot more heavy.
I greenify anything associated with the google-cloud or push-notifications, if I want to know my Facebook updates I can click on the app myself. I have location services turned off because there's ZERO reasons to use it unless I have a need for my GPS. Do you know that MANY apps use your location service even when not running and cause constant wake-locks. I've also moved my Google Services Framework from a system app to a user app with Titanium Backup Pro so I can greenify it and completely disconnect myself from Google if I have no needs for the play store or push-notifications. Gmail and gmaps can still run independently fine without the Framework, the GSF is also a major cause of wake-lock battery drain. Even if you greenify google apps, the GSF is still going to cause numerous wake-locks and affect battery.
I don't have a photo at the moment, since my phone is plugged in all the time anyway (just to keep it topped off), but I've had it run for almost 2 days without charging it; with occasional screen time, gaming, and having it idle. I'm also on a non-TW AOKP rom that's very very lightweight.
Br4nd3n said:
Well, firstly, you should believe that some people's last 2 days or so; as I've seen photos posted by "battery life enthusiasts" in the better-battery-stats thread and other places showing it's possible. 12% in 33 minutes isn't that bad and is around a stock TW battery expectancy.
You're on MF3.. which means you cannot run an AOSP rom, so almost anything your running isn't going to be extremely lightweight for battery. ALL TW based roms will drain battery more than a single AOSP or GPE rom, as the system is a lot more heavy.
I greenify anything associated with the google-cloud or push-notifications, if I want to know my Facebook updates I can click on the app myself. I have location services turned off because there's ZERO reasons to use it unless I have a need for my GPS. Do you know that MANY apps use your location service even when not running and cause constant wake-locks. I've also moved my Google Services Framework from a system app to a user app with Titanium Backup Pro so I can greenify it and completely disconnect myself from Google if I have no needs for the play store or push-notifications. Gmail and gmaps can still runa independently fine without the Framework, the GSF is also a major cause of wake-lock battery drain. Even if you greenify google apps, the GSF is still going to cause numerous wake-locks and affect battery.
I don't have a photo at the moment, since my phone is plugged in all the time anyway (just to keep it topped off), but I've had it run for almost 2 days without charging it; with occasional screen time, gaming, and having it idle. I'm also on a non-TW AOKP rom that's very very lightweight.
Click to expand...
Click to collapse
Here is my battery so far. As you can see, it barely has been used since yesterday. Screen on time is 25 minutes. Wifi is always on and I weather widget reloads every 4 hours. GPS is off though. Obviously, it lasts slightly less than a day if I use extensively with games, web browsing, email. Considering how much I usually use the phone, it does last 2 days.
Im on MF3 and using Wicked rom with SS.
If you get a new battery....
If you are thinking about getting a new battery and don't mind the extra bulk, go for the 7500mAh Zero Lemon Battery. I got one over a month ago and it will EASILY get 3+ days of battery life. It will add a lot of mass to the phone, but if you are looking for stupid battery life, check it out. Right now I have 26 minutes of screen time and 92% battery life left. It's been off charger for over 8 hours.
Snowdog
Edit: Forgot to mention I'm Full Stock / Full Lock.
I have noticed the standby battery on this phone is AMAZING!... but the screen on time is horrible for me too :S... can barely get 3 hours and that is with like 30% brightness... sigh
people said amoled helps save battery... but i used to have muchhh better battery with my htc one
So these are my stats on very light usage. Very good idle time. Just 2.5 hrs screen time
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
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Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
I've been getting godawful battery life - the phone comes off the charger at 8-9 in the morning and I am at ~10% at 3-4 in the afternoon with maybe an hour or two of screen on time. I'm running the latest build of PureNexus and EX Kernel, both of which are supposed to have better battery life. Android System is using 2-3 times more battery than everything else, depending on how long I've had my screen on. Should I switch back to stock (I really don't want to), or are one of these things in particular causing most of the problems?
What about apps??
Install WLD/BBS/GSAM to check the wakelocks..
If that doesn't help (which I think will help hehe) try performing a clean install of the rom+kernel
I have the same setup and I also get not that great of battery life. I get about 2H SOT for 12 hours of uptime. Theres no wakelocks or anything that shouldnt be happening. I just dont get good battery life. I don't even do much on my phone, I just reply to texts, listen to music, and occasionally google stuff.
Check if wifi and bluetooth scanning are on
pipnmike said:
Check if wifi and bluetooth scanning are on
Click to expand...
Click to collapse
I didn't even know that was a setting. What exactly does this do? Will it disable any functionality of anything?
jdubya42 said:
I didn't even know that was a setting. What exactly does this do? Will it disable any functionality of anything?
Click to expand...
Click to collapse
It helps with many thing but primarily google now. It enables approx location for searches by scaning for wifi and/or bluetooth signal which is used to determine locarion. and also helps with smart lock I believe. Although that shouldn't drain that much battery.
Sent from a Shaftamle Galaxy S4
"Thanks Button" is always appreciated!
149ThemedGoogleKeyboards!!!!!!
Eclipse ROM fatness!
MyColorScreen
jdubya42 said:
I have the same setup and I also get not that great of battery life. I get about 2H SOT for 12 hours of uptime. Theres no wakelocks or anything that shouldnt be happening. I just dont get good battery life. I don't even do much on my phone, I just reply to texts, listen to music, and occasionally google stuff.
Click to expand...
Click to collapse
The reality is... By only doing small and short tasks at a time, it uses more battery. Stopping and starting lots is a lot less efficient than constant running. I am able to get about 4 hours SOT if I do small tasks, nothing prolonged, but if I stream films or longer stuff, I get 5.5-6 hours SOT. It may be worth you looking at one of the scripts for the EX kernel governors, as one of them optimises battery life for users that don't have heavy usage. Do a quick forum search for it, it is worth a try!
The most important thing is to not focus on whatever figure you get for your SOT, as long as the battery lasts long enough between chargers that it is 1) better than your previous device and 2) good enough that it does not run flat between charges, then there is no real issue. People tend to focus on SOT as a defining factor of battery life, when it isn't the only thing to focus on!!
Hope this helps somehow.
Check to see what is syncing for your Google account. I had a ton of crap syncing that I don't even use. I restricted it just to mail, contacts and apps. Also, lock WiFi on to 2.4ghz instead of automatic. Turn off automatically scan for new networks.
Yeah I realize the thing about SOT. I was just giving it a number. Honestly the battery life just doesn't impress me. I wish it lasted until I went to bed, not just when I got home.
jdubya42 said:
Yeah I realize the thing about SOT. I was just giving it a number. Honestly the battery life just doesn't impress me. I wish it lasted until I went to bed, not just when I got home.
Click to expand...
Click to collapse
It is possible. I started off with diabolical battery life, but now I get through the day with ease. My only issue now is standby time, it is lacking a bit...