Develop Bugs

Battery Drain

Hi All,
When i look into (almost) all roms i see the problem with the battery drain problem.
To bad i do not have the knowledge to find out what to do.
But i think that some smart developers work together to find a solution about this battery drain problem.
So that's why i start this thread so we can discuss this

raiz said:
AdamG's Official Froyo HTC Sense might hold the key to this since it seems to give about 2 days battery performance with the original battery unlike any other rom.
Click to expand...
Click to collapse
It would be great if he could share the knowledge
I am using LeeDroid 1.4c and I too experience battery drain issues...

Someone tried this one http://forum.xda-developers.com/showpost.php?p=7170484&postcount=173 ?

There's a really good battery life on the OD 2.3 ROM Love it!
/CK
Sent from my HTC Desire using XDA App

Café King said:
There's a really good battery life on the OD 2.3 ROM Love it!
/CK
Sent from my HTC Desire using XDA App
Click to expand...
Click to collapse
Thanks, but i don't like the interface.. want have the sense feeling

Drain
Tested a lot of roms with froyo and sense. The roms based on 2.06 base are draining relative more then the roms based on 2.04.
Above is not scientificly tested.

Charge to 100% , go to recovery , advanced , wipe battery stats. Enjoy greater baterry life
Sent from my HTC Desire using Tapatalk

I had NONE battery drain problems on any of ROMS 2.1 or 2.2, and i did try alot of them.
Maybe theres something wrong with your phone itself (battery).
But definetly try wipe battery stats in recovery.

Since 08:00 morning had WiFi on.. network Data of... and now 12:02 battery is now 90%. DId have play with config the Tasker Tool (Great app).
Tomorrow i will do the test again but then with Network Data on and WiFi off.

raiz said:
AdamG's Official Froyo HTC Sense might hold the key to this since it seems to give about 2 days battery performance with the original battery unlike any other rom.
Click to expand...
Click to collapse
Yup, that ROM has the best battery life by far...
Sent from my HTC Desire using XDA App

people are having mixed results on the battery perfermance of adam's sensefroyo rom. i experienced a poorer battery life compared to eclair (i used Amer_v4 and the battery was excellent) but can still manage to last a full day usually. haven't tried out the froyo roms though.
ryanrich said:
Yup, that ROM has the best battery life by far...
Sent from my HTC Desire using XDA App
Click to expand...
Click to collapse
btw aren't you're using opendesire?

I've changed about 8 roms, mostly used 4, but can't say there was a huge difference between them. 2 days of normal use, 1 day of heavy use.
Possibly shadowfrost and DeFrost 2.4 had the best battery life and I had the fastest kernel installed...
I would think that - some isolated problem aside - mostly it has to do with some applications/settings

Charge to 100% , go to recovery , advanced , wipe battery stats. Enjoy greater baterry life
Sent from my HTC Desire using Tapatalk
Click to expand...
Click to collapse
Any ideea why?
Sent from my HTC Desire using XDA App

andycted said:
I've changed about 8 roms, mostly used 4, but can't say there was a huge difference between them. 2 days of normal use, 1 day of heavy use.
Possibly shadowfrost and DeFrost 2.4 had the best battery life and I had the fastest kernel installed...
I would think that - some isolated problem aside - mostly it has to do with some applications/settings
Click to expand...
Click to collapse
sometimes my E-Mail application is consuming most of the cpu. It keeps the cpu at max frequency. Even if i try to end the taks with the app "system panel" it wont solve the problem. I have to go into the app and make a manual sync.
i also found out that automatic brightness is using loads of battery. since i set it to static I'm experiencing almost 2 days of battery life with moderate use.
I'm on Defrost 2.1

Hello again everybody,
Yesterday whole day online by WiFi. Using phone couple of hours and my Maildroid Email was active without prevent sleep mode.
Battery was empty after almost 17hours. (+/- 5% every hour)
Today. Wifi on. Maildroid now with prevent sleep mode ON.
Have unplugged the phone 4 hours ago and battery is at 75%
Tomorrow i will test this with Network Data on.. and without prevent sleep mode of Maildroid. And day after with prevent sleep mode.
I know for sure.. the battery will drain very vast for both situations...
BUT Ill let you know
EDIT 26-07-2010: Battery was empty tonight on 1:30.
NOW I do the whole test again but now with network data on and WiFi off

Ive had the opportunity to own a Nexus One at launch and a HTC Desire...I always found Android OS to be the issue whenever i had excessive battery drain.
Ive found my issue to center around the OS 'calling home to sync' (whether 'sync' option is selected or not)Initially, the problem was resolved by deleting all my sync funtions...but that was obviously not practical........ so now I keep my GSM data connection running and I get about 2.5 days on Open Desire (non HTC Sense).
AdamG seems like the guy who knows what hes talking about - His changelogs for OpenDesire actually hint at him having done some battery drain tweaking...whatever he did, he has definitely fixed it
Cheers
Oz

I've tried so many ROMS in the past few weeks to try to solve battery drain issues. On some, I could almost see the percentage dropping as I looked at the home screen! I even bought a new battery thinking I might have killed the original.
OpenDesire does seem to be the way forward re this problem if you're intent on the HAVS kernel. OD2.3a gave me almost two days of varied use.
However, and I know this is going backwards, an earlier DeFrost - the 2.1, is brilliant for me. I'm now at two days since unplug and still at an unbelievable 45% - yes, I know, I thought it was broke as well! For now, I'm sticking with this one. Everything I want works and I don't have to carry a spare battery in my pocket when I go out.
Hope this is of some help. Don't despair. You will find the one for you.
Cheers

I don't get why everyone says they have such a issue with battery.
I get about 2.5-4 days of use with DeFrost 2.2 and have done about so since DeFrost 0.9. I've had it up around five days once.
How are you actually using your phones?
It's not a "Froyo" issue.

sckc23 said:
people are having mixed results on the battery perfermance of adam's sensefroyo rom. i experienced a poorer battery life compared to eclair (i used Amer_v4 and the battery was excellent) but can still manage to last a full day usually. haven't tried out the froyo roms though.
btw aren't you're using opendesire?
Click to expand...
Click to collapse
Switched back because I had terrible battery life on OD 2.3a and couldn't see why...
Sent from my HTC Desire using XDA App

Daelyn said:
I don't get why everyone says they have such a issue with battery.
I get about 2.5-4 days of use with DeFrost 2.2 and have done about so since DeFrost 0.9. I've had it up around five days once.
How are you actually using your phones?
It's not a "Froyo" issue.
Click to expand...
Click to collapse
It's very interesting to me how are YOU using your phone?
Come on, 4 days ? When i talk about 30m to 1h each day and using a phone little bit, i have at least 30-40% down.
u mean u only drain about 25% each day? are u actually using your phone ? wifi, calls, 3g ? or u have a expensive pocket toy just to show to your friends ?

[Q] RCMix S v2.0 Evolutionary Sense battery problem

Hi,
due to my low post count I can't post in the actual thread about that ROM hence this topic.
I have a little problem with battery in my Desire Bravo. On my previous ROM DeFrost 6.1a the battery was holding for ~52h (low usage). After flashing with RCMix S v2.0 it dropped terribly to ~7h (nearly to none usage). This is a huuuuuuge difference as you may notice.
The phone is running exactly the same apps as previously, same settings (Wifi, GPS etc. I mean the most battery related). The only things I've also done prior to flashing the ROM was:
S-OFF
flashed with HBOOT CM7 r2
that's all.
Did anyone experience the same problem? Or does anyone know how to solve it? To anticipate the question: I haven't wipe battery stats after flashing.
HTC Desire A8181
32.54.00.32U_5.14.05.17
CM7 r2 HBOOT

Well there are a few things that have changed. You have gone from Froyo to Gingerbread. You have fine from AOSP to Sense. RCMix S has bits of Sense 3 thrown in too. So really, it takes a lot to run. I have used that rom but you really have to maximize the battery yourself instead of relying on the rom to do all the work.
Swyped...

Meaple said:
Well there are a few things that have changed. You have gone from Froyo to Gingerbread. You have fine from AOSP to Sense. RCMix S has bits of Sense 3 thrown in too. So really, it takes a lot to run. I have used that rom but you really have to maximize the battery yourself instead of relying on the rom to do all the work.
Swyped...
Click to expand...
Click to collapse
exactly. more graphics means more battery consumption.

Mistiqe said:
Hi,
due to my low post count I can't post in the actual thread about that ROM hence this topic.
I have a little problem with battery in my Desire Bravo. On my previous ROM DeFrost 6.1a the battery was holding for ~52h (low usage). After flashing with RCMix S v2.0 it dropped terribly to ~7h (nearly to none usage). This is a huuuuuuge difference as you may notice.
The phone is running exactly the same apps as previously, same settings (Wifi, GPS etc. I mean the most battery related). The only things I've also done prior to flashing the ROM was:
S-OFF
flashed with HBOOT CM7 r2
that's all.
Did anyone experience the same problem? Or does anyone know how to solve it? To anticipate the question: I haven't wipe battery stats after flashing.
HTC Desire A8181
32.54.00.32U_5.14.05.17
CM7 r2 HBOOT
Click to expand...
Click to collapse
I also had battery issues with 2.0. Flashed 2.1. http://rom.robocik.mobi/Desire/RCMixS/v2.1/

whenever you flash a new rom calibrate your battery(i use battery calibrator) and i am using this rcmix 2.0 rom from last 2 week i have no issue with battery.

I generally get a fair while out of mine.
I've been "up" for 14h:40m and I've lose 42% battery.
Here's some battery saving tips:
Turn off OTA updates (Settings-About-Software Updates)
Turn off "Notifiy me of Open Networks" (WiFi)
Change Wi-Fi Sleep policy to 15 minutes (Wi-Fi Advanced)
Turn off Pocket Mode (In Sounds)
Also, having two batteries helps I kept my old one from an insurance claim and charge them using a dock. Means I don't have to worry about running out of juice if I'm out for a long time.

Well, I updated to RCMix S v2.1 as someone suggested and it actually made it even worse. The battery was sucked dry after 5 hours. Then I used the Battery Calibrator. Now it's been 20h since last charging exactly and I got 60%. That's way better than it was. So it seems like the problem was that I haven't wipe the batter stats after flashing new ROM. Lesson learned.
Thanks for all your answers. I appreciate that.

When do you wipe the battery stats, though? I've never done ir.
I had 15h yesterday and about 22% loss. Now I'm at 1d, 13h, 17m and 54% lost!

Well, as far as I know we are supposed to wipe them after every ROM flash as those stats are old (previous ROM) and not reliable anymore. I'm sure someone more experienced than me will have something more to say about it.

I never knew that. Aren't you supposed to wipe when it's dead, though (0%)?
This would explain why when I got a new phone and installed this rom straight to it the new battery was better than the old. Both are fine now though. Or at least I can't tell which is which anymore!
Sent from my HTC Desire using XDA App

Hy guys have you problem with room when it works only on gsm mode....
Sent from my HTC Desire using XDA App[/QUOTE]

Kryten2k35 said:
I never knew that. Aren't you supposed to wipe when it's dead, though (0%)?
This would explain why when I got a new phone and installed this rom straight to it the new battery was better than the old. Both are fine now though. Or at least I can't tell which is which anymore!
Sent from my HTC Desire using XDA App
Click to expand...
Click to collapse
You are actually supposed to charge the battery to 100% and then some. Download current widget and put on your homescreen. Charge until 100% and when current widget reads 0a you unplug, boot into recovery and whipe battery stats.

[Q] G2 battery and wifi problems...

So yesterday I rooted and flashed my G2 with Virtuous G-Lite and it works great. Much more responsive and snappy...
However I was told that this is the best ROM to use for a longer battery life but the battery seems to drain just as much or more than before...
Battery monitor says display is using most of the battery, but even during times of standby the battery seems to drain.
Is there anything I can do to figure out where all my battery is going? I just got the phone 3 days ago from a warranty exchange with a new battery so I doubt it's the battery itself.
Also, sometimes the wifi reception is really poor despite being right next to my router and it was also not bad before I changed to g-lite. is there anything I can do to help wifi reception? My browser seems to have a hard time loading web pages fully but I think it's due to the instability of the wifi signal, although if there is a known problem with the browser on g-lite...i'm just not sure.
If there is a specific app that is killing my battery how would I find out which one it is? Gmail is the only thing that I have auto-syncing to the best of my knowledge. are there other common offenders that might be doing me in?
Any help greatly appreciated!

Ive heard glite 1.0.3 drains battery loads. 1.0.2 has been known for great battery though. Try that.
Sent from my HTC Vision using XDA App

xT4Z1N4TRx said:
Ive heard glite 1.0.3 drains battery loads. 1.0.2 has been known for great battery though. Try that.
Sent from my HTC Vision using XDA App
Click to expand...
Click to collapse
do I have to wipe to downgrade to 1.0.2? also, where would I get the old version. maybe i'm dumb but I've only been able to find downloads to the most recent version...

[Q] HTC desire quickly draining (1yr battery)

Hello
Since one week i'm having 16hours battery till it drains completely, before that i got 1day and an half to 2 days, i'm using this phone for 1 year and i've never experienced that, so i decided to make a hard reset and see what i got, it stills drains in 16hours
i guess my battery isn't in it's full capacity maybe it's time to change for a new one
i'm in panic, its that a possibility that the phone become faulty or is just time to change for a new battery ?
Thanks
Edit : I'm using HTC Desire with Android 2.2 Stock Rom

HTC themselves IIRC made the announcement that after a year of battery cycle battery might need to be replaced.
Sent from my HTC Desire using Tapatalk

Thank you for the answer, i've noticed that gsm only mode is the cause of abnormal consumption, i can't explain why since i have no apps installed, i did hard reset yesterday... now i'm testing with gsm auto prl and is saving a lot of battery but 3g network don't suit for me, it's very unstable here...

[Q] HELP!! S-off device has battery drainage problems due to Android OS

Hi there,
so i gotta HTC one x last week, my first android..and I've gotta say that so far im hugely disappointed.
The phone has been draining battery like crazy ever since I got it. I've been charging it more than I've been using it, while it runs for no more than 4 hours when fully charged and heats up quite quickly. The battery usage options shows that the battery is being used mostly by Android OS and Android systems (over 85% for the former).
My friend suggested that i install a custom rom because it might be that the OS is corrupt. I bought the phone brand new and it came packed with an ICS stock rom. In the recovery mod the phone states that it is an S-off, with a CID #111111.
So i flashed the phone last night and installed a Jelly Bean Bindroid rom but the problem still persists. The phone drains the battery even when on stand by.
The phone runs fine besides the battery running out way too quickly issue.
Could anyone please help me with deterring what the cause of this problem might be and if the S-off thing has anything to do with it? and if so, how can I solve this battery problem? could it be a hardware issue?
Please help me. Im a NOOB at this!!!
Thank you in advance.

Might be a faulty battery. Look for a replacement OEM battery.
Sent from my MB886 using xda app-developers app

Check task manager too see which apps are running. Disable background sync if it's enabled, delete htc sense account if you have added it in account settings (it's a real battery hog).
Also, try to charge the phone to 100% battery 2-3 times and then check the battery performance.

Use BetterBatteryStats (search on here for the apk and instructions on how to use it).
Or, factory reset.