Database Info

Battery Drain? Does this help...

If you've been experiencing decreased battery life with recent versions of android or kernels you're probably pretty frustrated. The problem is that nobody seems to know what causes it or how to stop it. I was bouncing back and forth between this forum and cyanogenmod's forum and somewhere between the two I came across a new kernel made by ezterry for use with CM6.1. One of the patch contributers explained how his patch was supposed to help with battery life. I don't know if it does or not but the discussion shifted to how the adbd binary was respawning even when not connected to usb, and that got me thinking...
What if you turn off "USB Debugging" (uncheck option at Settings -> Application -> Debugging -> USB Debugging) That should keep adbd from starting at all.
The only downside is that you can't use ADB to connect to the phone from your computer when it is disabled. That may be a pain for devs and rom modders but once I've got a new build up and running I don't normally use adb anyways.
I've tried it on 3 different G1's and I am seeing increased battery life. It may not be 100% of where it was before but it is definitely better for me... either that or I'm going crazy...
So please, try it yourself and let people know here if it helps. And I apologize for the people whose work gave me this idea... I'd like to attribute your work to you but for some reason I can't find the thread I was looking at. If I (or someone else) find the thread again I'll update it here.
Update:
farmatito posted about adbd respawning here

I tried it, didn't prevent the drain.
When the battery drain circumstance occurs, you'll see from the Spare Parts / Battery History that the system has been running 100% of the time, i.e., something has prevented it from going to sleep. I see this happening even with USB Debugging turned off. Also, sometimes it still occurs even when I reboot after charging. I think a full power cycle is needed then, not just a reboot.

I also tried with USB debugging off and the battery drain was still there.
Sent from my HTC Dream using XDA App

I think it is a problem in the kernel
adb is in userspace
I know ( around about ) when it started..
but for now to get better battery reboot if you mated your phone, have a cig, a drink of milk or whatever it is you kids do after stuff that drained you

highlandsun said:
I tried it, didn't prevent the drain.
When the battery drain circumstance occurs, you'll see from the Spare Parts / Battery History that the system has been running 100% of the time, i.e., something has prevented it from going to sleep. I see this happening even with USB Debugging turned off. Also, sometimes it still occurs even when I reboot after charging. I think a full power cycle is needed then, not just a reboot.
Click to expand...
Click to collapse
Exactly my experience.

Kernel 2.6.34.7
Hi,
I had the same problem related with the battery drain when I was using Cyanogenmod 6.1. But the problem was solved when I flashed to kernel version 2.6.34.7
Regards,

My phone can idle fine for days if I'm not using it but the second I use the alarm app over night I wake up to find it in the red when it was fully charged the night before. At least for me, the alarm app is stopping it from going into "sleep" mode.

the solution was to flash a slightly older kernel, it was version 2.6.34.7, this was posted over at the cyanogen mod G1 forum. I had the battery drain issue, once I flashed the older kernel via recovery everything was back to normal.

That's good to know, maybe someone can track the changes since 2.6.34.7 and identify the problem...

cabrerachaparro said:
Hi,
I had the same problem related with the battery drain when I was using Cyanogenmod 6.1. But the problem was solved when I flashed to kernel version 2.6.34.7
Regards,
Click to expand...
Click to collapse
I would like to try your link, but what is the file which needs to be downloaded ? thx

A xx.7 kernel def does help with battery life. If your on the new spl and radio, try the ezbifftest xx.7 kernel.
Sent from my HTC Dream using XDA App

cabrerachaparro said:
Hi,
I had the same problem related with the battery drain when I was using Cyanogenmod 6.1. But the problem was solved when I flashed to kernel version 2.6.34.7
Regards,
Click to expand...
Click to collapse
Thank you for this trick. The battery life of my Dream/G1 is extended for real

Have 2.6.34.7 kernel the 14mb ram with new radio/spl?
I don't think so.... solutions?

nagash91 said:
Have 2.6.34.7 kernel the 14mb ram with new radio/spl?
I don't think so.... solutions?
Click to expand...
Click to collapse
patch 2.6.34.7 src with 2708 and compile

Firerat said:
patch 2.6.34.7 src with 2708 and compile
Click to expand...
Click to collapse
I'll do it, but before I have to prepare the mathematical analysis exam
(omg I hate it)
Firerat do you knows if I can patch the newer kernel with the old ramhack that add 10mb removing for 3D rendering?
I think would great 24mb instead of 14
(in this moment I'm using CSDIv4 with +8mb from the old ezterry's kernel and my G1 seems a nexus one )

nagash91 said:
I'll do it, but before I have to prepare the mathematical analysis exam
(omg I hate it)
Firerat do you knows if I can patch the newer kernel with the old ramhack that add 10mb removing for 3D rendering?
I think would great 24mb instead of 14
(in this moment I'm using CSDIv4 with +8mb from the old ezterry's kernel and my G1 seems a nexus one )
Click to expand...
Click to collapse
from your post I doubt you can patch anything
you seem to understand very little
sure you can patch in the old ram hack, but that will render most things unusable
in future don't ask questions implying that you can, just do it and see that you can't
fool..

Firerat said:
from your post I doubt you can patch anything
you seem to understand very little
sure you can patch in the old ram hack, but that will render most things unusable
in future don't ask questions implying that you can, just do it and see that you can't
fool..
Click to expand...
Click to collapse
Ahah yes I can.
I never compiled anything about android roms or kernels, true. But I want to begin.
I have the skills to do it, my problem is the time
I think that I have to compile kernels from source changing some piece of code.
If there are compatibility problems between patches and old kernels codes is a little bit problematic, but I don't think so.
I asked about old ram hack because I never compiled android kernel, so I don't know if the old 1.6 kernels are similar to newer kernels.
Personally I would like to exchange 3D for 10mb more, but don't know if it could break other thinks.
I don't like gallery 3D (don't like in G1, because it's too heavy)
I will try when I have time

Misutsu said:
Thank you for this trick. The battery life of my Dream/G1 is extended for real
Click to expand...
Click to collapse
If you use a 32b G1, you should try this: boot-cm_2634.7_ds_32b-oc-uv-fp-091310.zip

i just download theboot-cm_2634.7_ds_32b-oc-uv-fp-091310.zip im going to try this with cm7 or froyo lazlo because cm7 gives me the best battery life yet suprisingly hopefully bthis gives me an extra hour

ANyone know why this wont work with froyo lazlo -.- i flashed lazlo then this kernel but no luckstays at g1 lazlo works if i just dont flash this kernel

[Q] Flashing, roms, radio, etc?

I Rooted my Phone some time ago, i have installed some roms, some run good, some freezes my phone up, have remove my battery.
so what I need more info on, is should i do like I read about the Radio?, Kernel?, and then ROM?
What I show,
Kernel Version
2.6.35.14-RCMIX3D-V12-CRD-gec898d5-dirty
Baseband Ver: ( Radio)
12.29.60.19U_26.06.04.06_M
ROM
RunnyDroid v3.0
I have StraightTALK Sims, all DATA, SMS all working,
My Battery dose not last so long, 3 to 4 hrs, mostly not in use.
I seen a lot of post talking about this rom, and that rom works the best. or the battery last for 7+ hours.
My phone is not running a lot of apps, I even uninstalled my Anti-Virus.
I have to keep my phone on the Charger a lot. I even bought a New battery and same thing.
Thanks

Have you tried recalibrating the battery? Also, how much "screen -on" time during your 3-4 hours use?
Sent from a payphone!

Sorry, just noticed you said mostly not in use.
There's a apps you can download from the market- Battery Recalibration and Current Widget...with these 2 tools and a little knowledge of what running app/services are doing, you can track what's going on.
Or, you could just simply have a bad battery or a gooned-up flash (it happens).
Hope this helps.
Sent from a payphone!

Dinman said:
Sorry, just noticed you said mostly not in use.
There's a apps you can download from the market- Battery Recalibration and Current Widget...with these 2 tools and a little knowledge of what running app/services are doing, you can track what's going on.
Or, you could just simply have a bad battery or a gooned-up flash (it happens).
Hope this helps.
Sent from a payphone!
Click to expand...
Click to collapse
On the contrary, battery calibration has been proved to be nothing more then just a peace of mind type of procedure and really not a huge benefit. My advice would be to get Current Widget and fully charge your phone. Unplug it and let it sleep for about 6-8 hours with current widget logging the mA drain (the log is an option in the app itself, you just need to enable it). After the 6-8 hours ( I normally do this when I sleep so I know the phone is not in use) check the log and see if there is any weird mA drain. weird would look something like
1ma
3ma
180ma
230ma
1ma
2ma
Normal would be:
1ma
1ma
4ma
5ma
1ma
You get the picture hopefully haha. If you have weird drain then best bet would be to full wipe and reinstall the rom and individually install your apps one at a time and monitoring the mA usage to see what apps cause the drain and what doesn't. You can also try new radios with their matching RILs and see if that helps. There are also apps like Juice Defender and Green Power that have been said to improve battery life up to 2x. Hope that helps.

I have tested apps, done the ( Let the battery die, and then charge wait off to give a more of it charge.

buggme said:
I have tested apps, done the ( Let the battery die, and then charge wait off to give a more of it charge.
Click to expand...
Click to collapse
let your phone die and then recharging it fully does nothing for abnormal battery drain. So in that regard the only thing you proved to yourself was that your phone can charge properly. Are you 100% sure you are running the proper radio for the ROM or have the matching RIL for your radio? I still think its an app running in the background that is causing your problem. Are you sure that you full wiped and reinstalled the rom. Then with each app you want, install one. wait for 30 minutes and allow current widget to log the mA activity. Check the log to be sure there are no crazy spikes in mA and proceed to the next app repeating the same process. I know its annoying but that's the only way to be sure that your apps aren't causing the drain.
Also consider turning off sync, which I've heard can be a battery drainer. Turn off wifi as well when need in range since the scanning for wifi causes battery drain as well.

I really don't know, when I first got the phone, I Rooted it and unlocked it.
I Do have straight talk Sim I have been using.
all I did was change the ROM( I Think).
with all the little problems I'm having, I was think I have a lot wrong with it!
So I was going to download a need ROM, I seen talk about Radios, or RIL, and ROMS.
so No I don't know If I have everthing right.
I wasl looking atRCMixHD 4G V3.4 ROM, and if I used it, what Radio and RIL would I need.
having Stright Talk Service, witch runs on ATT, with difference APN settings.
what Would I need?
Thanks. Terrell

Usually, the ROM has all the correct radios, RILs, kernels etc inside the ROM itself and you would only need to change if you had some need for a different radio, like if you got poor service where you live. Kernels are dictated by the ROM.

jimcasey1768 said:
Usually, the ROM has all the correct radios, RILs, kernels etc inside the ROM itself and you would only need to change if you had some need for a different radio, like if you got poor service where you live. Kernels are dictated by the ROM.
Click to expand...
Click to collapse
And where did you get your info? Custom ROMs do not include radios.

Agoattamer said:
And where did you get your info? Custom ROMs do not include radios.
Click to expand...
Click to collapse
And that's why I asked. I need to set down one day and search, read, test,
On a different note.
All I can say is wow. 2,000,000 Roms and I still not know LOL. Thanks for all the info so far.

When you install a custom ROM it will include ROM, a certain RIL, and the kernel that the DEV has used with the ROM all in one package. The DEV will USUALLY let you know what the recommended radio should be to match the included RIL. You could flash it before or after you flash the ROM.
If you are having battery issues I would first start with a new battery. If you have already done that then flash a simple ROM for testing purposes. Stay away from highly tweaked and modified ROMs with a kernel set up for overclocking. I recommend juicy ROM from my sig. Install the 2.52 (R2) version which is still sense 2.5 and gingerbread 2.3.3. The ROM is flawless and you will get the best battery life than from anyother ROM. SEE how your battery lasts with it.
If you have your brightness set high, have many apps running in the background, are in an area where your signal is poor and is constantly lost, are syncing many accounts constantly, and you can't seem to put your phone down, then your battery will not last that long.

aospX rom problem
I installed the asopX rom and when my phone rebooted its stuck at a colorful animation screen. it's been doing it for a few hours... not sure if its still installing or stuck. Anyone ever experience this or know whats going on?

danielminter85 said:
I installed the asopX rom and when my phone rebooted its stuck at a colorful animation screen. it's been doing it for a few hours... not sure if its still installing or stuck. Anyone ever experience this or know whats going on?
Click to expand...
Click to collapse
Its bootlooping (not good) ...I would suggest to boot back into recovery and wipe and check your md5 sum & reflash or redownload file if needed.
Sent from a payphone!

dang!! that sucks! How do you do that?

danielminter85 said:
dang!! that sucks! How do you do that?
Click to expand...
Click to collapse
bootlooping isn't the end of the world. It only becomes an issue if you can't boot into HBOOT. You can boot into HBOOT by turning off the device and then holding the volume up and power button at the same time. You will then boot into HBOOT. From here your device will scan for a "PD98IMG.zip". I'm guessing since you don't know how to get into HBOOT then you've probably haven't flashed a radio so you shouldn't have a stray PD98IMG.zip on your sdcard. After it scans and doesn't find a a PD98IMG.zip you will be given a few options. One of which will be to boot into recovery. Do that. From there you can check the md5 (if you're using EXT4 recovery). If you want you can re-download another ROM and from recovery you can mount your SDcard so you can put the new ROM on your sdcard and flash per usual.

[Q] Battery Drain with CM 7.2.0 (fjfalcon's) of 19.03.2012

This ROM is really AWESOME!! Everything is running great for me. But the battery is draining twice as fast. Anyone had this problem???
Before, I had the khalpower ROM (froyo) and I used to get 2 days of battery. After the upgrade, I only get less than 24 hours with the same usage.
Battery usage gives: 36% for Cell Standby, 22% for Phone Idle and Display is 12%.
Any ideas?
Tks

Anybody??
PS: I configured everything to save battery but I only get 24h at max.

Use cm9 ) 10chars

fjfalcon said:
Use cm9 ) 10chars
Click to expand...
Click to collapse
How long is battery life in cm9 ? because I have only 1 day too with cm7.

Wow, CM9 save more battery than CM7? It's awesome. I'll try it tonight

Can choosing a wrong stock SBF to begin with cause the problem? Say you're in Singapore/India and first flash US cin-bell or Russian sbf. The baseband etc updated as per the country's settings. And consumes more battery. Does this theory stand at all?

kousik said:
Can choosing a wrong stock SBF to begin with cause the problem? Say you're in Singapore/India and first flash US cin-bell or Russian sbf. The baseband etc updated as per the country's settings. And consumes more battery. Does this theory stand at all?
Click to expand...
Click to collapse
You can change baseband with openrecovery-XT720 (It is not necessary a new SBF)
Have you changed provider? When I change my phone-sim from different provider I note different consumption.

There's another part of the baseband (bpsw) that can't be flashed in OR (at least not easily--I figured out why a few months ago, but haven't bothered fix it). Generally, the intent of the baseband updates in OR is to get the ROM portions to match the installed bpsw. But peshovec has convinced me that the baseband updates aren't really doing anything on XT720 because we have only one flavor of GSM on all stock devices (for comparison, A853 has a few different ones). So, I no longer think baseband matters.
Stupid things just seem to happen when you have low signal and an occasional low signal problem may have nothing to do with your phone. Reproducibility is the key here. I started using llama and now pay attention to which tower I'm connected to. For example, at my house in the same chair I can be connected to any of four towers and problems usually occur when I'm connected to a particular one (which happens very rarely). The format of that tower's identifyer code is quite different from the other three so I suspect it's a different model and/or generation.
Anyway, my experience on CM7 is that background processes churn like crazy (constant killed, restart cycles)--and that's what I think causes the problem. I haven't found how to address that though, and in my experience things like supercharger tend to make it worse. It's really weird because I remember a time when CM7 had better battery life than CM6... and I can't pinpoint what changed.
Has anyone compared with peshovec's? There are more of nadlabak's A853 256mb device tweaks in that one.

Try installing "BATTERY CALIBRATION" from the market and follow the instructions. It works for me. I'm using CM9.

To manage the constantly "auto"run apps , you can use gemini app manager , it could change the autorun status of an app . Now there is no more app that can autorun in background without my permission

4.0.4 heavy battery drain

Hi,
Has anyone else had problems with the battery draining with the new 4.0.4 ? My GF Nexus S was still on 2.3.6 so I got the factory version of 4.0.4 and installed it. I obviously wiped the data/cache/etc. Also I rooted it with the latest superuser.
I'm running the latest nighly of CM9 and everything is perfect, so I thought it was time to give her the sweetness of ICS.
So with all that useless information, has anyone found a fix for the battery drain in 4.0.4?
Thank you,
WarpedMonkeys

Since I installed 4.0.4 my battery lasts up to 20 hours, no problem at all.
I'd suggest manual full wipe with fresh 4.0.3 stock rom and then manual ota update to 4.0.4.
I'm also using matr1x kernel, it's just awesome
Hope it helps
Sent from my Nexus S using XDA

Yeah, me too! Try another ROM. I am currently using CyberGR-MOD|NS.NGN ICS v10 HYBRID and getting superb battery life (and performance, mind you ).

Poriotis said:
Yeah, me too! Try another ROM. I am currently using CyberGR-MOD|NS.NGN ICS v10 HYBRID and getting superb battery life (and performance, mind you ).
Click to expand...
Click to collapse
Stock rom is ok, but updating with ota from 2.3.6 to 4.0.4 may lead to bad battery behaviour. Someone says that battery stats wipe could lead to better battery performances, but I think fresh install could do the trick
Sent from my Nexus S using XDA

I used this thread : http://forum.xda-developers.com/showthread.php?t=1445621 and installed:
Android 4.0.4/IMM76D/UCKJ1 Radio/KL1 Bootloader
Official factory fastboot images, must be flashed using fastboot on an unlocked bootloader. Contains recovery, radio, and bootloader.
THESE IMAGES MUST BE FLASHED USING BOOTLOADER VERSION I9020XXKA3
I can't really be more fresh than this. I'll try messing around with her settings, but if it doesn't get better, I'll just flash her the latest CM9 nightly

Check your battery usage, if Android OS is using more than 8-9% after some regular usage, then that's the cause.
Sent from my Nexus S using XDA

Lazer Bear said:
Check your battery usage, if Android OS is using more than 8-9% after some regular usage, then that's the cause.
Sent from my Nexus S using XDA
Click to expand...
Click to collapse
Ehhhmmmm... My Android OS usage is always around ~20%, but my battery still lasts ~15 hours. Heavy usage. Are you telling me that it should last even longer?
Anyway, AMOLED screen or sLCD?
Sent from my Nexus S using XDA

Amoled
Her Android OS is normal...I really don't understand why it's that bad. I'll try doing a full battery cycle.

Updated form 2.3.6 stock to 4.0.4
OTA and battery usage is still OK. Lasts about 1-1.5 days. Permanent Wifi or 3g, internetusage and some gaming-No probs!!!
Sent from my Nexus S using XDA

WarpedMonkeys said:
Amoled
Her Android OS is normal...I really don't understand why it's that bad. I'll try doing a full battery cycle.
Click to expand...
Click to collapse
A full battery cycle could do the trick. Don't let it die, anyway, because it can cause battery wear... Just take it to 10% and recharge it nighttime... You may also wipe battery data before, if you wish...
Sent from my Nexus S using XDA

Check apps like news and weather too. My news and weather app really acted up after my ics update and wouldn't stop pulling data. I had to shut off any automatic updating with that app and it fixed my issue. It might have been temporary but just check your apps.

Evo_Shift said:
Check apps like news and weather too. My news and weather app really acted up after my ics update and wouldn't stop pulling data. I had to shut off any automatic updating with that app and it fixed my issue. It might have been temporary but just check your apps.
Click to expand...
Click to collapse
Alright thank you I'll check those out.

Try Badass Battery monitor . it will give you some good info on whats using your battery. Gives you a % of app usage
Look in play store

Evo_Shift said:
Check apps like news and weather too. My news and weather app really acted up after my ics update and wouldn't stop pulling data. I had to shut off any automatic updating with that app and it fixed my issue. It might have been temporary but just check your apps.
Click to expand...
Click to collapse
OMG thank you, I didn't notice that. Maybe I can get even better battery performance now it was set to update every 1 hour, so it may be not much, but even 1% is good for me!

Heavy battery drain ??? i don't have any issues with it, infact i have not touched my phone for 1 day 6 hours and 25 minutes and my battery dropped from 95% to 82%. My phone was fully charged (didn't go higher then 95%). I am very impressed by the results.
I changed 2 settings:
1. Automatic screen brightness.
2. Turn screen off after 30 seconds.

MichelN said:
Heavy battery drain ??? i don't have any issues with it, infact i have not touched my phone for 1 day 6 hours and 25 minutes and my battery dropped from 95% to 82%. My phone was fully charged (didn't go higher then 95%). I am very impressed by the results.
I changed 2 settings:
1. Automatic screen brightness.
2. Turn screen off after 30 seconds.
Click to expand...
Click to collapse
Wait a sec... that's not normal for me
Do you use 3G to connect to the internet? Never got more than 20 hours on 3G/HSDPA... without even using the phone!

Hello,
my Nexus S was updated automatically to version 4.0.4. I will tell you. My problem is with data. Now I can not open any WWW page in default viewer,Opera sometimes opens some pages but quite rare. I can not get any email in K9 Mail. Update of Google maps took several hours, unfinished, eaten all my battery! Sometimes I am without signal or with bad signal.
It is for sure problem with 4.0.4 because I have unlimited data. So, no FUP in this case.
I was satisfied with 2.3.6. How can I do downgrade without rooting etc. my phone ?

vaclavpe said:
Hello,
my Nexus S was updated automatically to version 4.0.4. I will tell you. My problem is with data. Now I can not open any WWW page in default viewer,Opera sometimes opens some pages but quite rare. I can not get any email in K9 Mail. Update of Google maps took several hours, unfinished, eaten all my battery! Sometimes I am without signal or with bad signal.
It is for sure problem with 4.0.4 because I have unlimited data. So, no FUP in this case.
I was satisfied with 2.3.6. How can I do downgrade without rooting etc. my phone ?
Click to expand...
Click to collapse
Check your APNs. But they should have come off the simcard when you updated.

rockdudecam2 said:
Check your APNs. But they should have come off the simcard when you updated.
Click to expand...
Click to collapse
This is correct, in my case...

vaclavpe said:
This is correct, in my case...
Click to expand...
Click to collapse
Try find out what is hogging your battery/cpu. Download os monitor.
Or just flash a new rom to see if that helps. make a backup first

The best ICS roms for Desire S in those days?

What have you tried and what do you think?

bobahajduk said:
What have you tried and what do you think?
Click to expand...
Click to collapse
Not another one of these threads!!!
P.S. : The OP might wanna change the topic to THESE days instead of THOSE days. In those days, we didn't have ICS.

Cm9 is the best I think.

Hi. After trying MIUI v4 ICS for a while and facing several wifi/network/stability related issues, I recently installed CM9 Alpha ICS http://forum.xda-developers.com/showthread.php?t=1429215
So far its been great, thankfully. Seems very stable. Most, if not all, features (h/w and s/w) work well. The only issue I've noticed is less stellar battery life in normal usage than my last rom (Reaper v2.2). But nothing that would make me give this Rom up as of now. It's awesome work by the devs most especially Nexx!
Will update if I run into any trouble

Guiding.God said:
Will update if I run into any trouble
Click to expand...
Click to collapse
To update, the battery life is taking quite a hit sadly. I love ICS and this ROM but the battery drain is quite excessive. I have CPU governor set to conservative, brightness at 1/4 and only data syncs set to push were email and whatsapp. Wifi is on always. After full charge I left the phone to sleep while I went to bed, received 2 emails during the night. 6 hours later I turned the phone on and battery was at 89%. After 2 hours of messaging via SMS and whatsapp and some browsing on chrome the battery is at 50%. Maybe someone can tell me if I'm doing something wrong, as otherwise this ROM is awesome and I would love to keep it.
The only other issue had been a system freeze once but that was under some heavy flash load when browsing, not a big deal.
Maybe time to try Endymion or revert to reaper for now.