Database Users

[Q] [PROBLEM]Latest roms, huge battery drain?

Hi friends
Is it me or everyone is facing similar hurdles like huge battery drain on roms tagged with the latest kernel 2.16.32.15?
I have tested many of the cooked roms and their battery drain is enormous!!
I get a reading of average 200mA and above! :-(
I use setCPU still no solution
Please help!

nangathegr8 said:
Hi friends
Is it me or everyone is facing similar hurdles like huge battery drain on roms tagged with the latest kernel 2.16.32.15?
I have tested many of the cooked roms and their battery drain is enormous!!
I get a reading of average 200mA and above! :-(
I use setCPU still no solution
Please help!
Click to expand...
Click to collapse
Do you get the average 200mA reading when the phone is in standby or when it is in normal usage?...In normal usage (browsing, gaming, reading, listening to music) is OK to have this kind of drain...if it's during standby, it really is enormous, but it has nothing to do with the latest kernel. I am using the latest Mdeejay Clean build and I have a normal stand-by drain of around 6mAh (3mAh when airplane mode is activated). I do not use SetCPU.
The huge drain could be because you are using an incompatible ROM/radio. Try to use the combo from hastarin's signature (this is what I am using) and have a look at his FAQs (the link is also in his signature).

On a dutch forum, some users warned me about a bluetooth problem with one of the new kernels. They used bluetooth and drained their phone in just a few hours. If you're using bluetooth, try a different kernel. If you're not using bluetooth, try rebooting a few times and check your drain with currentwidget (as mihaig11 said)

Hi, did you have a look here : http://forum.xda-developers.com/showpost.php?p=7949689&postcount=42

If you are using a build with hastarin's 8.4 kernel, then this could be the likely culprit. Upgrade to his 8.5 kernel or use mdeejay's 6.1 kernel. Seems mdeejays's kernel gives slightly better battery life but hastarin's kernel seems to have a slight performance advantage. Also use Exceller's auto boot app set to 3 seconds & auto boot and reset your phone. If you let WM/Sense fully boot you will experience higher than normal battery drain. Also, I've been experimenting with the Advanced Configuration Tool. Install it in WM and then enable all of the Power Management options from this tool and restart your Android. Seems to improve the battery life on all combos I've tried. I've used all the latest builds and I average around 3-9 mA in standby using these techniques. From my experiences, the single most important factor for better battery life is using Exceller's auto boot app to boot into Android immediately before WM/Sense starts. Hope this helps.

Kernel...best battery baby

Hi anyone recommend a kernel for battery,over the last couple of days my battery lasts 8 hours,which is not the best.
Im on arhd. Which the roms great but the actual kernel not the best at the mo

u can try lordmod's sense kernel v3.0,
but believe me its better to use this uv script http://forum.xda-developers.com/showthread.php?t=1305228

Well, there are several things that impact battery life:
ROM (ARHD is a good one)
Radio (you should flash th eone recommended by Mike1986
Kernel (standard kernel in ARHD should be good)
Apps and settings (badly written apps, using Latitude etc, overclock too high, clock settings for sleep too high?)
Partial Wakelocks if consumption is during inactivity (download the app, and read as much of the thread as you possibly can: http://forum.xda-developers.com/showthread.php?t=1179809)
Screen Brightness if consumption is heavy when you use th ephone (get Lux from the Market, you can build your own screen brightness curve, possibly Juice Defender does this too)
Also look here: http://forum.xda-developers.com/showthread.php?t=937080&highlight=wipe+battery+stats
Battery Monitor Widget will also allow you to check consumption, key for seeing when drain takes place.
In short, I'm saying it's not necessarily a kernel problem . I'd suggest you do a Superwipe, reflash the ROM and suggested radio, let it settle down for a couple of days, install JUST the monitoring apps, that way you will see if it's down to the ROM itself - and then add your own apps/settings back gradually. In about a week, you should really have isolated the problem.

nexus 4 battery

Hi !
i own an nexus 4 device and i have a battery problem .
before i baught this device i read online and i already knew that his battery isnt very good , but i never taught it would be that bad !!
i barely touch the phone and thr battery keeps draining !!
my question is what can i do to make it better..maybe to replace my rom , or install another kerner...anything please help !
thanks in advanced, Orel

turn off stuff which you are not using, eg. data, bluetooth, NFC, wifi, location services;
and turn your screen brightness down as much as possible.
that's all you can do, but it should make a big difference.
also think about investing in a compact portable battery charger.

My battery life on my Nexus 4 is awesome.
Download wake lock detect to find what apps are eating up your battery.
https://play.google.com/store/apps/...EsImNvbS51enVtYXBwcy53YWtlbG9ja2RldGVjdG9yIl0.

Install a custom rom and go try a custom kernel.
DO NOT ASK WHAT ROM AND WHAT KERNEL IS THE BEST
Try all of them and see how it is for YOUR device. Try undervolting if you want to. Personally I'm running PA with Franco with a -100 undervolt. 8 hours on standby takes away about 1-2 %.

90%+ of time no network - battery drain

Hi everyone,
Today I've noticed, after installing cm10.1, that my battery life hasn't improved at all compared to color rom. While other Oppo find 5 users say the battery life changes for the good.
The problem is that my device says that it doesn't have signal or an unknown signal. While today, I had 3 full bars of connection the whole time. Also in betterbatterystats the apps says my phone was awake for 5+ hours, while the cm10.1 battery app says my phone was barely awake.
Ofcourse I've got screenshots to show you what I exactly mean.
If you guys need more information on this, please ask me and I'll post it as soon as I can.
I really want to know what's up with my battery drainage, cus just 3 hours of screentime(just 2g or wi-fi) is by far not enough for me.
Thanks in advance!

ahawlery said:
Hi everyone,
Today I've noticed, after installing cm10.1, that my battery life hasn't improved at all compared to color rom. While other Oppo find 5 users say the battery life changes for the good.
The problem is that my device says that it doesn't have signal or an unknown signal. While today, I had 3 full bars of connection the whole time. Also in betterbatterystats the apps says my phone was awake for 5+ hours, while the cm10.1 battery app says my phone was barely awake.
Ofcourse I've got screenshots to show you what I exactly mean.
If you guys need more information on this, please ask me and I'll post it as soon as I can.
I really want to know what's up with my battery drainage, cus just 3 hours of screentime(just 2g or wi-fi) is by far not enough for me.
Thanks in advance!
Click to expand...
Click to collapse
If you want to use to CM roms there are a few things to check.
If you are coming from a 4.2.2 ColorRom you need to flash the 4.1 modem for AOSP roms, the 4.2 modem doesn't work.
The modem can be found here (thanks to anders3408): http://d-h.st/BEg
CM10.1 is using a kernel that is not that great compared to other AOSP roms but you can still increase battery life by changing the cpu governor to 'Conservative'. To get access to the performance settings go to 'Settings' --> 'ABout Phone' and tab 'Build Number' repeatedly. The performance sttings will now be visible in the settings menu.
Better IMO would be to use a newer AOSP rom with new kernel. I would suggest to try out the following roms, all of them should offer better battery life:
AOKP official by @DAGr8: http://forum.xda-developers.com/showthread.php?t=2431666
AOKP by @maxwen: http://forum.xda-developers.com/showthread.php?t=2432755
AOSP by @anders3408: http://forum.xda-developers.com/showthread.php?t=2430113
Paranoid Android 3.99 by @aaronpoweruser
Have fun

Rom battery life

Hi everyone, I'm a new user and I'm looking for a rom to help my phone with battery power. I was looking for an optimized and specific rom to optimize battery life. I can't post in the ROM section I hope you can help me.
Thank you so much.

Depending what stock firmware/software you're on rn, choose the right custom ROM, and then maybe use a custom kernel like ThunderStorm Kernel. Supposed to be a battery saver kernel, haven't tested just yet myself

Use a stock based ROM and a kernel that underckocks. AOSP and other ports will not be as efficient with battery in general. Lower clock speed generally improves battery life although keep "race to idle" in mind. Ur ROM and kernel are not the only things that affect battery life. Apps like nap time, Greenify, force doze, sysconfig patcher (for Magisk) can improve standby battery drain whilst having a dark mode/theme can help with screen on battery drain. Having better reception can improve battery life. If you don't use WiFi, Bluetooth or location then having them off can improve battery drain. Background apps/ bloatware can drain battery so limiting background apps/ removing bloat can help. Disabling notifications for apps u don't need them for can help. If u don't like using ur phone as a phone then I know alot of XDA members use airplane mode intermittently. This is just the tip of the iceberg and you'll need to comb through XDA to get more details. There are a few posts dedicated to battery saving too. Keep in mind that some of these strategies can affect functioning of your phone and it's all a balancing act between function and battery. My philosophy is to make my phone not waste any battery while still keeping all the functionality I use. Good luck.