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Hi,
Ive recently installed Android 2.2 Froyo on an SD card on my HD2 and the battery is going down so quick... it wasnt great in Windows mobile but now I'm struggling to get it to last all day...
I'm saying to myself this cant be normal, I'm also trying a Samsung Galaxy S and the battery is so much better!!
Is there anyway I can improve the battery power on my HD2, I know in a HD2 the battery is a 1350mah and the Galaxy S is a 1500mah battery.
Should that make such a difference?
I'm considering going back to Win Mobile but dont really want to but havent got any other choice if the battery carrys on like this....
I also notice the screen and back get really quite warm... I suppose Android is making the system work harder?!?!?!
Its safe to say that you havent read any of the threads about battery life.
Before you say I did a search and didnt find anything Ive already typed in battery in search and found a bunch of threads.
Now what you need to do is find out why its running so warm.
It could be the kernal version you are using.
Ways to improve battery life are using setcpu and underclocking. A lot of members use current widget as a method to see when High drain is occuring.
In sleep mode you should be seeing less than 10ma. If you dont see less then this there is a problem.
Set current widget to 1 min intervals.
Dont use task killers they dont help anything no matter what anyone says.
Dont compare the captivate to the hd2. 2 different phones.
I am using mccm 1.5 customize, and CurrentWidget shows 5mA on standby which I think is good enough. Sometimes, it shows 60mA on standby in a while and my battery drains very fast, even I use Advanced Task Killer but it does not help. I have to reboot the phone to get it back to 5mA on standby.
Anyone has any idea of what may cause my standby power that high (60mA)?
Thanks.
hazard99 said:
Its safe to say that you havent read any of the threads about battery life.
Before you say I did a search and didnt find anything Ive already typed in battery in search and found a bunch of threads.
Now what you need to do is find out why its running so warm.
It could be the kernal version you are using.
Ways to improve battery life are using setcpu and underclocking. A lot of members use current widget as a method to see when High drain is occuring.
In sleep mode you should be seeing less than 10ma. If you dont see less then this there is a problem.
Set current widget to 1 min intervals.
Dont use task killers they dont help anything no matter what anyone says.
Dont compare the captivate to the hd2. 2 different phones.
Click to expand...
Click to collapse
Thanks for your tips for better battery life. I was curious about a few things and hope you could clarify a few things for me and some instruction or threads on how to do so. And yes I have searched, that's the first thing I always do before I do anything web based as far as positng.
1. How do you setcpu and underclocking?
2. How do you find the amount of battery that standby takes? i.e. 60mA? How do you get to that setting in android?
Thanks for your help in advance.
Setcpu is an app used to control your cpu speed.
link included
http://forum.xda-developers.com/attachment.php?attachmentid=394848&d=1283568967
the setcpu dev's site with complete info on how to use it.
http://www.pokedev.com/setcpu/
To check ma's use (current widget)
http://forum.xda-developers.com/showthread.php?t=776085
long press on the desktop and apply current widget. It will ask you if you want to create a log. Create a log for 1 min intervals. Put the phone to sleep and leave it for a good 5 mins.
You can then open the log file usint astro file manager and check your drainage while sleep.
One thing I found is that If i am having high drain i turn my gps on and restart then it usually settles down and I can turn the gps off.
If you have apps that are syncing you will a higher than normal drain during those times the apps sync. if you set your apps to sync at longer intervals the amount of batter drain will be unnoticable.
I have major battery ocd. I constantly check my battery and have to force myself not to look but still use my phone as any normal person would.
I can pull more than 12 hours easy!
Thanks hazard99!
The first time I ran android I don't think I've had any battery issues and now that I'm looking at the percent on my homescreen Im beginning to feel battery OCD too. It's like I lose 1% atleast every 15 minutes when I look at my screen. But I did take and apply all the tips you told me and I do see that it only uses 5ma when screen is off. I truely don't understand. :/
Stop looking at your screen. Stop worrying. The more you look the more juice you use while the screen is on. There will be more points where the phone is off.
traithudo said:
I am using mccm 1.5 customize, and CurrentWidget shows 5mA on standby which I think is good enough. Sometimes, it shows 60mA on standby in a while and my battery drains very fast, even I use Advanced Task Killer but it does not help. I have to reboot the phone to get it back to 5mA on standby.
Anyone has any idea of what may cause my standby power that high (60mA)?
Thanks.
Click to expand...
Click to collapse
Ive also been trying to investigate this, my standby drain is usually 60+ mA, and during use it jumps to the 200's, strange stuff indeed....For you to have 5mA, lol i wish that was for me too =/
otakubakaa said:
Ive also been trying to investigate this, my standby drain is usually 60+ mA, and during use it jumps to the 200's, strange stuff indeed....For you to have 5mA, lol i wish that was for me too =/
Click to expand...
Click to collapse
What radio and wm are you using? Do you use SetCPU?
I had high battery consumption, too. But now I found something interesting...
Due I'm not allowed to post links, yet, search for the post with topic:
[SOLUTION] Possible solution for heavy battery drainage.
With this fix: over night I only lost 20% instead of 59% of battery.
uninstall SetCPU
10507 said:
What radio and wm are you using? Do you use SetCPU?
Click to expand...
Click to collapse
im using the same radio as you (2.10), energycookie rom 21916, and my setcpu is at interactive 245/729, and for sleep its at 245/384, hastarin kernal.
Use a Battdrv.dll from older HD2 ROM 1.48 Etc. I'm not sure if you recmod the module and replace the current one in Windows if you will get the same benefit as if you cooked the driver in.
i just updated my kernal to the latest zimage in mattc's froyosense's evo tree, and my standby is around 6-11 ma now, guess that solved some issues lol, anyone know whats the normal operating ma power consumption for texting?
EDIT: Now when i try to enable wifi i simply get "error", did i mess up on something? =/
EDIT: Solved above problem. WOOT!
First, sorry for the new post on this, but I have not seen this mentioned. Didn't want it buried before it could help anyone.
I have used pretty much every android ROM out now, and for some strange reason they each have one constant.
ROMS which give 54-67ma on standby on first boot can be reset a couple of times until they reach the 4-11ma in standby point. Usually takes 1-3 resets.
Now, I'm not sure why this is all I know is it works. And yes, there is a huge amount of difference between 5+ and 50+ma.
I can surely confirm this
Hatefly said:
First, sorry for the new post on this, but I have not seen this mentioned. Didn't want it buried before it could help anyone.
I have used pretty much every android ROM out now, and for some strange reason they each have one constant.
ROMS which give 54-67ma on standby on first boot can be reset a couple of times until they reach the 4-11ma in standby point. Usually takes 1-3 resets.
Now, I'm not sure why this is all I know is it works. And yes, there is a huge amount of difference between 5+ and 50+ma.
Click to expand...
Click to collapse
This is most definitely true, might sound illogical or fake but I personally took battery logs when my drain was 58mA but could not find anything, I changed Kernels just to observe the same and I finally gave up but I accidentally had to reset my phone a few times as I forgot to put it on charge/freeze then after a few days I happened to see terrific battery improvement 5-8mA, I didn't know why but then I understood it was because of the resets..
Good to see I'm not going crazy. Like I said, I tried this with a bunch of different ROMS. All the same.
So if you are having bat problems. Try a few resets and see how that works for you before giving up on the ROM.
Oh, I might also mention I am not running any sort of set cpu app.
Check again
Hatefly said:
Good to see I'm not going crazy. Like I said, I tried this with a bunch of different ROMS. All the same.
So if you are having bat problems. Try a few resets and see how that works for you before giving up on the ROM.
Oh, I might also mention I am not running any sort of set cpu app.
Click to expand...
Click to collapse
Funny that just the both of us are populating this thread.. But yes I too do not use any Set CPU or Task Killers..
Currently on
Mattc Leo 1.8 with hastarins r7.6 with 5-7mA battery drain on Stand by (Wifi, GPS,Bluetooth off, data on(but disconnects sometimes))....
I can confirm this too.
Im a little new to Android on the HD2, running Mdeejay eVo Sense v. 2.3 rEVOlution 7.7 Hasteran at the moment.
Im finding the battery life on v2.3 less then on v.2.2 so I'll try a few resets & see if it improves, thanks.
Oh, is it really necessary to run SetCPU or a task killer?
Im forever closing tasks with task killer & the though of a task being auto closed when I turn the screen off is comforting, but is it best to just leave things to the kernal?
The most consistent way I have found to get 4-5ma on standby was to use exceller's android loader set autoboot android and 3 secs.
I can confirm this too.
I am trying dual boot (http://forum.xda-developers.com/showthread.php?t=723200) to boot into Android right away to see if that leads to more consistent standby battery drain. (this was mentioned on another thread.)
I have abandoned TaskKiller and AutoKiller, made no diff in battery drain for me.
I so still use SetCPU to slow the CPU when battery gets low.
Juno-First said:
Im a little new to Android on the HD2, running Mdeejay eVo Sense v. 2.3 rEVOlution 7.7 Hasteran at the moment.
Im finding the battery life on v2.3 less then on v.2.2 so I'll try a few resets & see if it improves, thanks.
Oh, is it really necessary to run SetCPU or a task killer?
Im forever closing tasks with task killer & the though of a task being auto closed when I turn the screen off is comforting, but is it best to just leave things to the kernal?
Click to expand...
Click to collapse
For better battery life, setCPU is a MUST! Creating different profiles to change the cpu clock is huge in conserving battery; especially, the the screen off profile.
Ditch ATK and download Watchdog instead.
even hastarin himself is using android without setcpu. with kernels 7.6, 7.7 I get same batt juice as with setcpu, BUT less stuttering in general, i.e. android runs more smoothly.
Honestly I have found that every ROM I have used set cpu was a detriment to battery life.
I'm still not 100% that even task killer is helpful in some cases. I think that on the other hand has to do more with how you use your phone and what apps than anything. Some people can prob get away with it.
SetCPU is pretty much pointless now with the latest kernels, only thing it's useful for is overclocking, but even without it I've not found anything that can't run. Even graphically intensive games like Reckless Racing run perfectly fine at stock CPU speeds.
I've just updated last night to ShubCraft 2.0 DropMode and I get 6ma in standby, my battery dropped 9 percent in 8 hours of standby while I slept, and after a full day of using my phone from about 9am to 6pm tonight (texting, calls, wifi use, 3G use, picture taking, playing a few games and listening to over an hour of music) my battery only just hit 50% at 6pm. This is without SetCPU.
What i've done is just swap out the micro sd card for another one. I had the stock 16gb and replaced it with an 8gb micro sd card and i'm getting fantastic results.
Without any type of task killers or Set Cpu, i'm constantly getting 3ma - 9ma stand by readings from Current Widget.
I also downloaded Juice Plotter from the Market ( what a fantastic app IMO ) and it tells you how much time you have left on your battery as well as a graph detailing the percentage of power battery has used.
I can go a day to a day and a half with out charging my phone. I am in complete Android Heaven.
NOTE: Keep in mind that when booting into Android, when you hit the Haret, make sure that the hard key light are on.
I also have the auto sync off to save battery as well.
To get the 4-11 mA, just make sure the keypad lights on the phone are on when booting haret.(pretty much, boot asap)
Sent from my HTC HD2 using XDA App
alantak said:
I can confirm this too.
I am trying dual boot (http://forum.xda-developers.com/showthread.php?t=723200) to boot into Android right away to see if that leads to more consistent standby battery drain. (this was mentioned on another thread.)
Click to expand...
Click to collapse
After several reboots this is holding true.
Before when I making sure the keypad lights were on before booting Android I would still occasionally get bad standby drain, so I think that is myth.
Exceller's auto boot app = no battery drain!!!
szfjcr said:
The most consistent way I have found to get 4-5ma on standby was to use exceller's android loader set autoboot android and 3 secs.
Click to expand...
Click to collapse
GOLD!!!! PURE GOLD!!! Been trying to preach this for days now! The battery drain is eliminated by booting Android before WM/Sense fully boots. Has nothing to do with keypad lights being on or off. Hence, use Exceller's auto boot app set to boot 3 secs and restart your phone and let it auto boot. Battery drain ELIMINATED!!!!!
secano said:
To get the 4-11 mA, just make sure the keypad lights on the phone are on when booting haret.(pretty much, boot asap)
Sent from my HTC HD2 using XDA App
Click to expand...
Click to collapse
See above comment.
anush.isaac said:
This is most definitely true, might sound illogical or fake but I personally took battery logs when my drain was 58mA but could not find anything, I changed Kernels just to observe the same and I finally gave up but I accidentally had to reset my phone a few times as I forgot to put it on charge/freeze then after a few days I happened to see terrific battery improvement 5-8mA, I didn't know why but then I understood it was because of the resets..
Click to expand...
Click to collapse
When you guys say do a few resets do you mean pull the battery or just use the off menu?
danielefeldt said:
When you guys say do a few resets do you mean pull the battery or just use the off menu?
Click to expand...
Click to collapse
Just do a hot reset if your android buid has that option, even better power off and and reboot from windows
I'm using bangster v1.5 with hasterin 7.7. I only get 2-3 ma standby.
Sent from my HTC HD2 using XDA App
For me the problem was the SD card. I formatted it with 4098 (or similar)block size, copied the Android build back over the top and bang from 115-170mA to 4-9mA on standby!!! WOW.
mkay here it is what to do disable in order to conserve some juice :
settings - sound - haptic feedback - uncheck
settings - dispaly - brightness off half way or less , go to web browser brightness and lower it also disable in browser settings location check
settings - location and security use gps - unchecked disabled
settings - account and sync - uncheck
settings - privacy - back up my date - uncheck
i also unchecked serchable items so my phone doesent even try to search anything else than web browser
next download zim launcher which doesent eat battery at all 1% in stand by .
Screenfilter is a next program that allows you to lower your screen brightness even more that stock alowes you which is nice on bettery too cause our screeen eat most of battery .
AutoStarts its a program that allows you to control apps startin when you boot your phone you can remove some to prevent them from startin when your phone boot
download systemAppRemover its a paid app but works well and lets you delete programs from system which u dont want/need and those programs most likely run in background eatin your battery ,for me those programs were .. remeber i dont use them so i didnt need them :
voice dail -deleted
voice search - deleted
ptt- deleted
wi fi callin - gone !
there is prolly like 5 more programs that i deleted just forgot what it was annd
if you dont need crap on your phone eating your battery % install bloat free OS . good luck
also make a shortcut for stock task manager to your home screen and hit clear ram or close programs once in some while .
you can save your battery also by downloading program called SETCPU and lower your cpu frequency from 1ghz to 800 or 600 it helps also , and if you run voodoo or any else moded kernel dont expect battery to lasst as long as stock too !
want to remove wi-fi callin aka battery hog download file below flash it with clockwork
also u can freezee programs with TITANIUM BACKUP instead of deleting them so if u need them for later use theyr all there .
The only good recommendations you offered were to underclock and remove bloatware.
I'm not going to disable everything about my phone that makes it a smartphone. If I did that I would not have bought a smartphone.
I DIDNT TELL YOU TO DISABLE THINGS its your choice what you wouuld follow to conserve your battery thats what i do because i use my phone as mp3 so music is no1 thing so i dont need those things but they also helped save consumption of battery ,and as far as i see some people dont even know yet they can disable these features so im just breaking it down for some . if this thread is usles some one delete it ! p.s like when im in school and my phone starts to die i disable data so it saves life so i can put my headphones and use it as mp3 player
Meh, I just have two spare batteries and a batt charger, so I run with everything on, full brightness. Even if my battery only lasts 8 hours, I just pop in a fresh one and I'm good. Like the other guy said, I don't see the point of buying a smartphone and then turning off everything that makes it useful or fun.
unlike me with one battery and 10 gig of music, u can go carry those liteon in ur pocket lol
bartek25 said:
unlike me with one battery and 10 gig of music, u can go carry those liteon in ur pocket lol
Click to expand...
Click to collapse
The batts are pretty darn skinny. I can even put one in my wallet if I'm not carrying a bag.
Get a extended battery. Last me exactly 25 hrs of use. Or take 20sec with a spare change. How much life can yall expect witg a smart phone that doesnt sit all day.
Sent from my SGH-T959 using XDA App
ummmm...if your going to disable all that stuff, then why even have a smartphone?
when i need my phone to be smart i go and run it on demand meaniing go and enable it ! honestly `i dont think you need everything runnign in background so go at leatrs frezz it do at your own risk and its your choice to choose how long your phone will last today 4h or 20 , thats it ,i was just tryin to be helpful for those who dont know
bartek25 said:
when i need my phone to be smart i go and run it on demand meaniing go and enable it ! honestly `i dont think you need everything runnign in background so go at leatrs frezz it do at your own risk and its your choice to choose how long your phone will last today 4h or 20 , thats it ,i was just tryin to be helpful for those who dont know
Click to expand...
Click to collapse
And if that works for your purposes, that's awesome. Thanks for the suggestions.
I leave every thing on and really only use task manager to shut down background apps when not needed. I have a spare Battery....never used it...yet but, I have it
I run alot of stuff on this phone but only use the music player about 1/2 hr a day
I am getting 16-20 hrs on a charge.......... So it never has been an issue to me. I am kinda confused why people complain about the battery......... unless they are playing games and youtube all day or overclocking the phone....... the battery lasts just fine.........
why not just do one better and turn the phone off? Just turn it on when you need to do something. Battery life is AMAZING.
Personally, I just keep a charger / car charger handy.
To cut down on battery usage while maximizing speed is to have my processor overclocked and set up profiles to disallow overuse of processing power while my phone is not in use, and maximizing it while it is.
PS. You don't have to be overclocked. Just but setcpu and create profiles. For example: 1ghz max and 800ghz min default. Then a profile set for when the screen is off to use 800 max and 0 min.
I also use a task killer to minimize RAM usage.
Sent from Count Chocula's Overclocked Samsung Fascinate
bumpin this as of so cause im bored ;P
Thx for the tips. A couple I didn't know about. Like you, there are some features I never use and they are battery hogs. It's up to ppl to decide if they want to carry an extra battery or bulky extended battery but its always good to have options.
I'm might judy go crazy freezing everything up...lol
Here's what I do...
- Uninstall bloatware
- Use SetCPU; underclock to 200 max, 100 min when screen is off, saves a ton of battery without affecting performance at all.
- Autokiller memory optimizer boosts speed and (supposedly) battery life and takes away the need for a task killer
And that's about it. I lose no performance and get good battery life.
I go 5 hours with my phone unplugged with light to moderate usage (text and email) and my battery drops only about 10%. I leave the phone on standby for 24 hours without using it and battery drops about 2%.
wearmaize said:
Here's what I do...
- Use SetCPU; underclock to 200 max, 100 min when screen is off, saves a ton of battery without affecting performance at all.
-
Click to expand...
Click to collapse
I believe android already scales the cpu to 100mhz when the phone idle so you dont need set that in setcpu.
Does it? Because when using Setcpu and underclocking with the screen off, there's a slight lag when "sliding to unlock" but none when I disable the profile, leading me to believe that there is a difference.
I honestly have no clue as to whether the OS does this by default, however. That's just what I noticed.
Sent from my SGH-T959 using XDA App
Set it to 200/200 no lag. There is almost no difference(in battery use) between 100mhz and 200mhz so just set it at 200min 200max for screen off
Sent from my SGH-T959 using XDA App
14 bucks and I got an extended battery. Best decision ever, seriously. I'm sitting at about 12 hours unplugged, and still have 38% left. Battery left is estimating 8 hours left on this one charge. That's with heavy use. Music playing, web browsing, downloading apps, playing Angry Birds, posting to Facebook, Google Reader syncing. Seriously, just spend the 14 bucks and save all the trouble of disabling stuff.
First - let me state - and it is true - that I used the search function.
I read pages and pages of advices to lower battery consumption on my HD2 Android... without success...
First I used an SD ROM. I read that a NAND would improve battery life. So this is what I did.
I am also using SetCPU with a profile when battery <30% and another one when screen is off to LOWER the CPU speed. In normal use, I set CPU speed at 768MHz trying to lower power consumption...
I use a task killer to free memory and prevent silly programs to drain my battery off...
I use Juice Defender to control wifi, data, etc...
And with all of this in place, my "Current widget" shows a consumption of 180mA with screen on doing nothing, up to 350-400-500!!! mA when acutally using the phone wifi+sync...
In the forum I read consumption like 3 mA - 9 mA!!! This is FAAAAAR Way lower than what I ever had with different builds...
So this is an help scream to everybody: what is your battery drain, and why mine is sooo High???
Hint: I am also a fan of LCD Density changer, with setting at 165... can this have an influence on battery drain??? I reverted to the original 240, doesn't seem to have any influence...
Thanks for your help,
Looki
My drain is 3-9 ma in STANDBY ONLY now and again slightly more but mainly the values stated. And my screen on between 120+160ma. Turn off auto brightness if you have it on, and set it at the lowest your comfortable with (display is big batt drainer) I DONT use taskillers as they do more harm than good. I use NO undervolting and only the default settings with my rom. I have low lcd density setting 167 i think. Lcd density has no effect on your battery drain!
Found this here. http://forum.xda-developers.com/showpost.php?p=13151738&postcount=11296 Might be of some use to you? (from hyperdroid gbx thread)
Whats youre rom?
And do u use ext partition on sd?
I dont even use SetCpu anymore. Only taskkiller.
Auto-brightness is on
Auto sync is off.
Im using UD 3.3 nand from crawlingcity
Stansby is 3 -6 ma
Using round 160 to 250.
Sent from my HTC HD2 using XDA App
How long does your battery last from 100% to self shut down? As for Current Widget, keep in mind that when people say "Standby", its generally referring to the screen being off. Set current widget to update every 30 seconds, and turn the screen of for 40 seconds. Then quickly turn the screen on, unlock, and check what it is reading then.
If its still high, try "Force Stop" applications in the Settings > Applications menu one by one, i've had to do this more than once to locate problem apps that were destroying my battery in standby mode.
I'm knew to Android, let me share you my idea.
I use UD3.3
I removed google stuff
gmail, search, etc
No auto sync
Location off
Always kill market when screen off.
I use beautiful widget for weather manual refresh.
I use battery widget
Auto level for screen
sometimes WIFI on
2g Only
2 or 3 calls,total of 3 to 4 min a day
My battery stay 48 hrs in STBY mode.
I think the most draining factor is
1) google stuff they are battery hog.
2) screen
3) bad written programs (every time they check connection to
internet or looping for doing something, looping will make
CPU in high frequency).
4) bad device driver such as BT which is known as 60ma
drain. it is not the hardware but it is the software doing
the drain.
thanks
pc2058 said:
I'm knew to Android, let me share you my idea.
I use UD3.3
I removed google stuff
gmail, search, etc
No auto sync
Location off
Always kill market when screen off.
I use beautiful widget for weather manual refresh.
I use battery widget
Auto level for screen
sometimes WIFI on
2g Only
2 or 3 calls,total of 3 to 4 min a day
My battery stay 48 hrs in STBY mode.
I think the most draining factor is
1) google stuff they are battery hog.
2) screen
3) bad written programs (every time they check connection to
internet or looping for doing something, looping will make
CPU in high frequency).
4) bad device driver such as BT which is known as 60ma
drain. it is not the hardware but it is the software doing
the drain.
thanks
Click to expand...
Click to collapse
Bt drain has been fixed, wil now get you 6-15 ma.
Google stuff aint bad, just set update frequentcy to manual.
(Helps with alot of other programms that require internet.)
Sent from my HTC HD2 using XDA App
[Ultimate GUIDE] Increase your battery life on Android
Thanks guys for your help!
I made a compilation of all tips I could collect and/or find by myself.
They are here: http://forum.xda-developers.com/showthread.php?p=15229416
Regards,
Looki
Disclaimer; This does not damage your phone at all or fry/mess your cpu.
This method is used to lower CPU stress and increase Battery life
This method works for all rooted phones.
IMPORTANT: The newer versions of SetCPU might prevent your phone from entering deep sleep. Download version 2.24 from the following link which is the one with no problems and completely works 100%.
LINK
Deep Sleep breaks when charger is plugged in, you can see this by CPU SPY application available on playstore
Stop Downloading Battery Saving Applications, they do nothing and uses RAM.:silly:
Also Turn BLN off when you are sleeping.(It also Consumes battery and sometimes prevent deep sleep of CPU)
Set your Brightness to minimum and disable auto brightness.
LINK to Display Brightness
Instead use lite app called - Display Brightness from play store.
Turn off wifi and mobile data when not in use.
Use toggle for auto rotation, and keep off when not needed.
For more battery Saving, disable all animations and set screen timeout to 1min.
The S plus sucks in battery life. We all know that.But here's a fix, Try Under clocking instead of Over clocking.
When screen is on:
MAX 1.4Ghz(Why to OC??, if your phone runs smoothly on 1.4Ghz)
MIN 192Mhz
Ondemand governor (This governor jumps up to max when needed but spends most time on the min freq. Best battery saver.)
When screen is off:
MAX 365 Mhz
MIN 192 MHz
(This prevents lagging when playing music and other activities when screen off)
This way, you have a beast quick phone when you're using it, and the best battery saver when you're not!
NOTE: Turn off Autosync from the settings. It's only used to sync your gmail and contacts and such. You can manually sync when you add a new contact and since I don't use gmail, I refresh manually whenever I do.
SetCPU:LINK
Specific instructions for those that can't get it to work!:
On SetCPU:
Click Add profile
Where it says Profile, select it and tap "Screen Off"
Set the frequencies you want in use while screen is off (If you want just one frecuency, put both sliders on the same number)
Set priority (in case you have other profiles, otherwise don't bother)
Select governor (Won't really matter since cpu is gonna be running at 1 frecuency)
Tap save
Go back to Profiles tab at the top, then tap Enable at the top left to make the profiles work.
For a list of most governors and I/O schedulers detailed;
Visit
1.LINK
2.LINK
To check if its all working, install CPU spy from the playstore: LINK
For Playing GAMES(HD)/HEAVY GAMES, Plug your Charger in and play if possible.:good:
Most Important thing is to calibrate battery,
Calibration of battery is needed when you change your ROM.
This process wipes batterystats.
Battery Calibration
1. Charge 100%(NON STOP)
2. Download any battery Calibration tool from play store; (Link to App)
3. Open that app, click battery calibrate
6. Unplug your charger
7. Discharge your phone down to 0% during the day
8. Charge back up to 100% (NON STOP)
This is to make sure you're using your battery at 100%. Only do this after you flash a new rom.
The worst battery killer is 3G. No matter how much you try to optimize battery by tweaking and underclock, if you have 3G on, you're gonna have a bad battery drain.
Make sure that Autosync is disabled.
Done A small test usage 14 mins , you can see in attachment your CPU should look like this.
THIS READINGS FROM MY SGA.
And never ever install the Facebook App if you want to use your phone for more than 3 hours!
Sent from my GT-I9001 using xda app-developers app
Don't get apps that take background processes like what xellar said, facebook, and some other apps like tap tap revenge 4. Anyways thanks for the tips and link to free setcpu
Other people can also share VALID ideas about saving battery.
Will help many users.
Nice advises. I'm already using these.
One more good thing is turning mobile data off whenever you are not using it, also bluetooth, lowering brightness.
Good app for doing so is Power Toggles. You can always have widget on home screen and switch on/of these things with one tap.
Riiight.. Turn off autosync, disable 3G and wi-fi, dont use apps or games.. I might as well buy Nokia 3310..my phone lasts easily whole day with wifi on..with 3G it can get me at least 6-9h which is fine.. The key is to turn off 3G when you are on wifi and turn down brightness.. Everything else is not using your smartphone smart..
1) Set your network mode to 2G only if you're not using 3G/WCDMA
2) Manually set your operator in settings.
PS: After flashing one of firmwares I got a bug - battery is not charging to 100% while phone is ON. Only to 99% and not showing a message about fully charged battery... But when the phone is in off mode - it charges to 100%. Anyone knows how to fix this thing?
apkfox said:
1) Set your network mode to 2G only if you're not using 3G/WCDMA
2) Manually set your operator in settings.
PS: After flashing one of firmwares I got a bug - battery is not charging to 100% while phone is ON. Only to 99% and not showing a message about fully charged battery... But when the phone is in off mode - it charges to 100%. Anyone knows how to fix this thing?
Click to expand...
Click to collapse
Change/upgrade your firmware...
Battery Calibration
http://forum.xda-developers.com/wiki/Samsung_Galaxy_S_Plus/GT-I9001#Calibrate_Battery
This way works without an app.
TheBlackWolf said:
Change/upgrade your firmware...
Click to expand...
Click to collapse
Didn't help. But deleting batterystats.bin helped. Thanks anyway. :good:
Take a other kernel with better voltage and governor configuration.
Set Display time to 30sec.
Kind regards.
enable "only 2G"
turn off wiifi
turn off bluetooth
black screen wallpaper help?
Sent from my GT-I9001 using Tapatalk 2
If you are on CM7 try this... From CyanogenMod setting.
This will help to save battery.
cheehsiang said:
black screen wallpaper help?
Sent from my GT-I9001 using Tapatalk 2
Click to expand...
Click to collapse
On Amoled-Displays it should help. Inverted Apps, too.
setCPU
i testet the new version of setCPU 3.0.9, deep sleep works perfectly.
If profiles are not used it exits and there is no use of RAM in both versions (But then you do not have the unique feature of auto switching profiles ).
Is there another app with auto-switching?
buffo1987 said:
On Amoled-Displays it should help. Inverted Apps, too.
setCPU
i testet the new version of setCPU 3.0.9, deep sleep works perfectly.
If profiles are not used it exits and there is no use of RAM in both versions (But then you do not have the unique feature of auto switching profiles ).
Is there another app with auto-switching?
Click to expand...
Click to collapse
Actually no idea.
But other simple and best app for controlling CPU is NoFrills.
TheBlackWolf said:
Actually no idea.
But other simple and best app for controlling CPU is NoFrills.
Click to expand...
Click to collapse
But it has no profile-autoswitching, in fact no profiles at all. Voltage control Extreme has at least profiles, but without autoswitching. What is good about Voltage Control Lite/Extreme is that it sets cpu setting with init.d and so the app does not have to start on boot
Yes that is nice...
fo more info how to use
visit here
Link to App
TheBlackWolf said:
[
Stop Downloading Battery Saving Applications, they do nothing and uses RAM.:silly:
<snip>
When screen is on:
MAX 1.4Ghz(Why to OC??, if your phone runs smoothly on 1.4Ghz)
MIN 192Mhz
Ondemand governor (This governor jumps up to max when needed but spends most time on the min freq. Best battery saver.)
When screen is off:
MAX 365 Mhz
MIN 192 MHz
(This prevents lagging when playing music and other activities when screen off)
This way, you have a beast quick phone when you're using it, and the best battery saver when you're not!
<snip>
Click to expand...
Click to collapse
Many thanks for the battery saving hints. I'll finally kick out the Task Killer App, doesn't really seem to do anything except creating problems ..
For the statement that Underclocking would help in saving battery I wouldn't fully agree. A slow cpu needs more time to complete a task before returning to a sleep state. Of course the battery drain is higher with a higher frequency (which also require higher voltages), but I believe, that there isn't much to gain on this front. As long as I don't see any profound evidence I'd even suspect, that an underlocked CPU overall could even cause more power consumption. You can also read more opinions about this in general in this thread.
Much more beneficial would be to identify those apps that cause frequent wakelocks. Does anybody have hints here, how to track down those 'bastards' ? (From my Linux I know 'powertop', does something similar exist for Android? (Or are the battery statistics in CM10 sufficient to decide which app to wipe?)
z3non said:
Many thanks for the battery saving hints. I'll finally kick out the Task Killer App, doesn't really seem to do anything except creating problems ..
For the statement that Underclocking would help in saving battery I wouldn't fully agree. A slow cpu needs more time to complete a task before returning to a sleep state. Of course the battery drain is higher with a higher frequency (which also require higher voltages), but I believe, that there isn't much to gain on this front. As long as I don't see any profound evidence I'd even suspect, that an underlocked CPU overall could even cause more power consumption. You can also read more opinions about this in general in this thread.
Much more beneficial would be to identify those apps that cause frequent wakelocks. Does anybody have hints here, how to track down those 'bastards' ? (From my Linux I know 'powertop', does something similar exist for Android? (Or are the battery statistics in CM10 sufficient to decide which app to wipe?)
Click to expand...
Click to collapse
Better battery stats is application useful for identifying partial wakelocks.
Its an paid app, but Google helps... Lol
Your above sentence about UC comes true for heavy usage.
Normal apps can run smoothly and at same speed as of OC.