Database Develop

Battery life worse after FRF83

Ive noticed a significant decrease in battery life ever since i updated my phone to FRF83. I can leave it on at 100% and it drains down to 75% or even lower the following morning. It usually drains no more than 10% if i leave it running overnight.
I dont have any apps running in the background, and my task killer is set to auto kill 3 mins after screen blankout. Auto refresh is, and has always been on since the day i got the phone though.
I manually updated to FRF85B and the battery life is still as bad as ever. Ive never gotten this problem with android 2.1 or any of the earlier froyo builds. Someone care to tell me whats wrong? Ive heard others reporting that their battery life has increased after updating to froyo, why am i getting the opposite?

I have this issue because of my exchange server.

Ive never set up and exchange server on my phone. The only constant apps that should be auto syncing are gmail, calander and twitter, which is set to refresh once every 1 hour.

Same for me, battery life sucks lately.

Mokurex said:
Same for me, battery life sucks lately.
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Then there are people reporting that their battery life has increased after updating to froyo. In fact mine was ok at first, until i started using FRF83 onwards then it all started to go downhill. This morning i woke up with the battery at 44% when i last saw it, it was at 90% the night before. It drained that much overnight and its not supposed to happen!

Mine was very good since updating to froyo ( starting from first builds leaked). Its very good now too, better than before anyway. I used to run of juice by 9PM, now i have ~ 20% left with the same usage.
Check out what apps are consuming the battery, i got terrible batt life when i tried the droidx live wallpaper.

App usage are the usual stuff.
Display being the highest, followed by android system, then cell standby, phone idle, twitter, android OS, launcher pro..etc
something seems to be sucking up my battery and i dont know what

I'll be the first one, I guess - I blame the task killer. It's widely known that you shouldn't need a task killer, unless you have some rogue app.

EarthsiegeTA said:
I'll be the first one, I guess - I blame the task killer. It's widely known that you shouldn't need a task killer, unless you have some rogue app.
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But if your task killer is set to auto-kill on screen-off, even if various apps restart then that should only be in the first few minutes and shouldn't reduce the battery that much.
I have taskiller installed but only for manual killing of problem apps (a rare occurrence) and I have noticed poor battery life since moving to FRF85b - didn't notice anything of the sort in the Froyo versions before 85b though.

Well i just uninstalled task killer, i'll leave the phone running overnight again to test the battery again. But from the looks of it. It seems battery life has improved slightly, but it could be just me.
drewstiff said:
But if your task killer is set to auto-kill on screen-off, even if various apps restart then that should only be in the first few minutes and shouldn't reduce the battery that much.
I have taskiller installed but only for manual killing of problem apps (a rare occurrence) and I have noticed poor battery life since moving to FRF85b - didn't notice anything of the sort in the Froyo versions before 85b though.
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Yeah thats true. It shouldnt suck up that much battery cos it only kills apps once. It could be an issue with the task killer causing it to drain the battery, because after uninstalling it i think the battery lasts a little longer. But i'll leave it running overnight again to confirm.

My quick story:
- frf72 and earlier - about 12 hours battery life for me. Used task killers, 2 emails on push. WiFi, BT off. Also tried juicedefender and setCPU. They made my battery life even worse.
- frf82+ (now frf91). Read up on how Android manages tasks and power. Got rid of all the task managers, setCPU and JD. Only use OSMonitor every once in a while to see if any dumbass app using up CPU in wakelock. So far none.
- EVERYTHING is ON. Wifi, BT, GPS - always on. I never use 2G, it's always 3G/HSDPA. GMAIL on PUSH, Exchange PUSH or 10minutes (no difference in battery for me)
- After a 24-hour test (from which 8 hours were on standby at night) I lost 80% battery life, so 20% still remain.
My advice: uninstall anything like setCPU, JD or taskkillers. Let Android handle that. Install OSMonitor and make sure nothing's in wakelock. Wipe cache if you want. If you're not getting 18-20+ hours, perhaps time to calibrate ur battery.

Thanks for the tip, just installled OSmonitor. The interface is pretty messy! But at least i understand whats going on. So all i need to do is keep track of which apps are at the highest load?
Is it really necessary to kill unwanted apps (Twitter, goggles, gmail..etc) because they are taking up RAM to improve battery life while idling?

OR you could just take Paul's advice and not use a task killer. My money is on him =)
FAQ: Why You Shouldn’t Be Using a Task Killer with Android

Wow thats a very informative read! Thanks for the link. I too also thought that an unwanted running task means i need to kill it to free RAM in order to speed things up and improve battery life. Didnt know im actually doing it harm.
Looks like i'll ditch my task manager for good and have faith in the OS.

Using LauncherPro Beta? I think some battery issues have been traced back to the way LP is handling updating widgets right now. Hoping for an update to fix it soon.

Well guess what. I just used the phone for an entire day and left it on since last night. It dropped down to 25% when i got home and was about to replace the battery pack. So it looks like task manager was the cause of the problem.
Launcherpro doesnt seem to be affecting the battery life.

cr0wnest said:
Well guess what. I just used the phone for an entire day and left it on since last night. It dropped down to 25% when i got home and was about to replace the battery pack. So it looks like task manager was the cause of the problem.
Launcherpro doesnt seem to be affecting the battery life.
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Well it won't show up in the battery usage as affecting the battery. It has something to do with the widget updating not launcherpro. I removed BBC News, Beautiful Widgets and my Battery Info widget and my battery is now holding steady.
I'd be interested if you'd run an experiment, remove all updating widgets, notification widgets, etc and try again.

[Q] Since updating to JPO, my battery drains at around 8-10% per hour.

This isn't a little rise in battery draining. This is an absolutely ridiculous spike in battery usage. I left my phone overnight, and it dropped from 90% to 37% within the 8 hours I left it sleep.
Is there anything I can do? This is stock JPO updated via Kies. Will changing ROM or Kernal fix this? Because quite frankly, I am sick of this. I can't take my phone out for the day without it dying on me.
As far as I can tell, it's not the sensor bug some people are experiencing, as I'm not seeing any suspicious usage in the battery history.
Any help would be very much appreciated as I'm seriously debating getting rid of the phone. I just can't keep it with this appalling battery life.
Thanks.

HungLikeAMidget said:
This isn't a little rise in battery draining. This is an absolutely ridiculous spike in battery usage. I left my phone overnight, and it dropped from 90% to 37% within the 8 hours I left it sleep.
Is there anything I can do? This is stock JPO updated via Kies. Will changing ROM or Kernal fix this? Because quite frankly, I am sick of this. I can't take my phone out for the day without it dying on me.
As far as I can tell, it's not the sensor bug some people are experiencing, as I'm not seeing any suspicious usage in the battery history.
Any help would be very much appreciated as I'm seriously debating getting rid of the phone. I just can't keep it with this appalling battery life.
Thanks.
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Click to collapse
Turn off auto rotation and data connection (3G). That should improve your battery life siginificantly. You don't need to check your emails in your dream do you?

snapper.fishes said:
Turn off auto rotation and data connection (3G). That should improve your battery life siginificantly. You don't need to check your emails in your dream do you?
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Thanks for the reply.
I have auto-rotation off as default. It is really plausible that data connectivity is consuming this much power? I never had this much battery drainage in Eclair, even with auto-rotation on, data connectivity on and with the screen at maximum brightness.
I've downloaded APNdroid and will see if turning of data connectivity will help, though I very much doubt it. I'll update here in the case that it does though.

Do you have a exchange account configured?
It's known to drain your battery at that rate when not set to "Push" (generic Wake Lock problem in Froyo)
Also, if you don't mind spending a few bucks, install System Panel app and let it monitor CPU, that way you'll find out which apps are the top battery users (while asleep, battery drain is fairly equal to cpu usage, so the top cpu-usings apps will be the drainers). I have 75% battery left after 10 hours of light usage with Bluetooth. Auto Rotation and 3G enabled.

pwhooftman said:
Do you have a exchange account configured?
It's known to drain your battery at that rate when not set to "Push" (generic Wake Lock problem in Froyo)
Also, if you don't mind spending a few bucks, install System Panel app and let it monitor CPU, that way you'll find out which apps are the top battery users (while asleep, battery drain is fairly equal to cpu usage, so the top cpu-usings apps will be the drainers). I have 75% battery left after 10 hours of light usage with Bluetooth. Auto Rotation and 3G enabled.
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The only email I use is Gmail, synched to my phone. I've noticed that a fair-few people are having battery issues with a number of suspected causes. The exchange email setting being one and the sensor issue being another.
Would flashing to a custom ROM fix this issue? Or would it still persist? I really wouldn't mind flashing to a custom ROM if it fixes this absolutely pathetic battery life I have at the moment.

if you have any task killers installed try uninstalling.
I had advanced task killer installed and was experienced battery drain..not as much as you but if it helps it al counts

reefy said:
if you have any task killers installed try uninstalling.
I had advanced task killer installed and was experienced battery drain..not as much as you but if it helps it al counts
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I don't use any form of task manager besides the stock one, which I use on rare occasions.
I'm really debating just trying to flash with any old ROM to see if that fixes the issue.

Are I using the ext4 lagfix? If so there's your problem there. Also to fix gallery bug you just need to root phone and use root exeplorer to copy fixed gallery.apk into /system/Apps. Putting new modded Tom won't fix it as thy mostly use old default gallery which has sensor bug. Look in search to find gallery3d.apk file
Sent from my Apple Newton 2100 running at 206mhz

ickyboo said:
Are I using the ext4 lagfix? If so there's your problem there. Also to fix gallery bug you just need to root phone and use root exeplorer to copy fixed gallery.apk into /system/Apps. Putting new modded Tom won't fix it as thy mostly use old default gallery which has sensor bug. Look in search to find gallery3d.apk file
Sent from my Apple Newton 2100 running at 206mhz
Click to expand...
Click to collapse
I'm not using any lagfix at all. It's stock JPO updated via Kies. The only modding I've done to it is rooted it.
How would I go about checking whether or not the Gallery is the cause of the battery issues?

[Q] Battery life...evil's NXsense 1.26

Hi!
I have install this rom to my Nexusone but the battery runs out in less than 24h.
What can be the answer? On Gigerbread v.20, I can stay up to 4 day with it.
Is the Kernel involved? If so, what kernel is the best battery saving?
Thank for your help.
Louis

I'm not sure what the problem is but I like to blame the applications running in the background. I close them with advanced task killer but they reappear out of nowhere. I have NXSense HD 1.1 beta (just test it till back to MIUI )

You waste your and phone's power trying to close the apps. Using task killer for any reason besides closing a misbehaving app is wrong, and wastes more battery than it saves.
Sense launcher (Rosie) autostarts several apps, and keeps them in memory. It doesn't draw CPU power, as long as you're not killing them.

Yes, I think that the problem rely on task in background or modified Kelnel... Overcloking maybe? Don't know...problem is that I love this rom and all of his fonctionality.
Other advice?
Louis

Look at the battery meter before you charge the phone, see what drained the battery.

Ok, after restoring my backup, I remove the live wallpaper and this problem was gone. Don't know why, but the battery stop to discharge. I will test further, but thank for your help.
Louis

[Q] Best App to extend battery life?

What you think about this, you use some app that close automatically services or not?

It's senseless to use such apps because Android does it by itself. Further it uses more energy and your battery will be low much faster.
Sent from my HTC Desire using XDA App

Self management. Close apps and services when you are not using them. Such apps that supposedly better manage your battery usage are a drain themselves.

Agree with Liam really .
Big battery drain is constant WIFi searching .
jje

Wi-fi is forever off, someone use droidwall?

Further it uses more energy and your battery will be low much faster.
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totally true !!!

Any app uses more battery than it is able to save...

There are exceptions to that such as SetCPU or Green Power Premium / JuiceDefender as they do reduce battery consumption, albeit at a cost to functionality / performance.

ManMOuntain said:
There are exceptions to that such as SetCPU or Green Power Premium / JuiceDefender as they do reduce battery consumption, albeit at a cost to functionality / performance.
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But I don't think that is the point. We want maximum performance with minimum battery drain

The theme of the original question was app to extend battery life / automatically kill tasks. Utilities such as Advanced Task Killer / SetCPU / Green Power Premium and JuiceDefender spring to mind. It's true of course that Android to a certain point does this itself, but arguably these apps do it better. You cannot have a phone continually running at maximum performance without maximum battery drain.
You have to make a compromise.

Green power and juice defender are the only ones that spring to my mind.
Sent from my GT-I9000 using Tapatalk

Using Gingerbread without any app killer I get a pretty food battery life (more than 2 days). So I really don't feel the need to use one.
Sent from my GT-I9000 using XDA App

OK trying green power and juice defender I used adv task killer but IMHO has battery drain

I have been using Juice Defender with great success, I am using ultimate version which allows you set when and where to use you wifi/3g/2g etc, with a busy schedule you don't really have time to think about turning things on and off.
I set my evening hours (sleep) to turn off 3g and wifi and come back on again during the day 8am for every 1 hr polling.
This saves a huge amount of battery - easily getting 2 days with a full charge. But of course if you are using it for commuting music/videos/browsing - no software is going to help you.

Beautiful now i have installed the app gratis try it and than if satisfied get the ultimate version

As the display is what consumes the largest part of your battery, and as the SGS has an AMOLED display, you should also try
Screen Filter
or
Total screen control

True, display eats most of the "juice" on SGS... About task killers: i suggest having a task killer to kill tasks when you wish (by choosing so) BUT not by themselves. Let the android do that and you'll see it does it better!
Lastly about 2.3.3 roms: the is a know issue with very heavy battery drain on some cases (it will appear as :android OS on battery stats).. That is a bug of 2.3.3 roms appearing after running some application and games (especially the "heavy" ones). Only know fix so far is rebooting (also you may hear about deleting some system apps by i do not recommend it)!

In case of need the combo of Screen protector and Green power helped me reaching the end of the days.

i use advanced task killer by rechild. autokill frequency every half hour, setting crazy, security medium. i defined exceptions for my updating widgets and gmail and thats it. this way android stops loading all sorts of aps in the background after a while so loads of free ram and stunning battery life. saying android itself does a good job is simply wrong, but i hope android will some day.

Juice Defender
For me, Juice Defender increased the life of my battery in half a day. Now I can easily reach 2 days with medium usage.
Before, It was almost impossible to end second day without charge.

[Q] Captivate not holding charge, showing excessive system usage

Hi,
I have had the captivate for a while and it has been a trusty little phone. For past few months , the phone is not able to hold the charge. I have tried multiple roms, stock roms, and tried to do as much as I can. But still not able to keep the phone on for more than 6 hours from 100%. I bought a new battery and no difference has been noticed. I was just wondering what else could I look into. I have a Note 2, but I really love this phone and want it as a good reliable spare.
Thanks

Install the Better Battery Stats app and let it run for a day and then see what the apps says is eatin up ur battery.
Sent from my SAMSUNG-SGH-I747 using xda premium

I would highly recommend the "SLIM" Rom. (http://forum.xda-developers.com/showthread.php?t=2060386)
I've found that it's been extremely kind to my battery with its suite of inverted apps and generally inverted interface.
My battery running stock rom was dying in ~6 hours idling, very much like your situation. Running SLIM, I've seen battery life for ~1.5 days with light usage. Not a drastic improvement but it definitely helps.
I would also recommend grabbing "Gemini App Manager" and killing off some pesky background services that may be eating up at your resources/battery life. Be careful what you mess with, but you can change the startup for your services as well as fully disabling services. (Requires root)

ArchTyriel said:
I would highly recommend the "SLIM" Rom. (http://forum.xda-developers.com/showthread.php?t=2060386)
I've found that it's been extremely kind to my battery with its suite of inverted apps and generally inverted interface.
My battery running stock rom was dying in ~6 hours idling, very much like your situation. Running SLIM, I've seen battery life for ~1.5 days with light usage. Not a drastic improvement but it definitely helps.
I would also recommend grabbing "Gemini App Manager" and killing off some pesky background services that may be eating up at your resources/battery life. Be careful what you mess with, but you can change the startup for your services as well as fully disabling services. (Requires root)
Click to expand...
Click to collapse
His issue isn't coming from the ROM he's using. It's mostly a app draining his battery.
On a side note, app manager/killer don't actually give you more battery as the process simply restarts after being killed. Android itself kills w/e needs to be killed (without restarting them). Stop using it and you might actually see a improvement in battery life.

BWolf56 said:
His issue isn't coming from the ROM he's using. It's mostly a app draining his battery.
On a side note, app manager/killer don't actually give you more battery as the process simply restarts after being killed. Android itself kills w/e needs to be killed (without restarting them). Stop using it and you might actually see a improvement in battery life.
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Click to collapse
All ROMs are certainly not created equally so I was making a suggestion based on personal experience.
No I agree, with your original post that he needs to track down the app that is killing the battery but the manager I suggested configures the startup parameters of the app (should this app start on boot/can it restart itself/etc). I found when using it that my dropbox was constantly hanging around in the background and started on boot. It allows for some select tweaking of what exactly you want to be running and when it is allowed to start.

thanks guys, I have been trying to figure out myself whats keeping the phone on but no luck yet. its just saying brightness consuming more than 50% battery and the other 25% is os ans system.
I installed slim rom last night, so will try it out today and see how this fares.