Develop Bugs

[Guide] battery fix

Well I was having horrible battery problems and came across a how to on the web and thought I would share this. Hopefully it hasn't been shared already and I apologize if it has. Its a way to wipe battery stats. MAKE SURE YOUR BATTERY IS AT 100% BEFORE DOING THIS
1. Boot into cwm recovery
2. Scroll to advanced
3. Scroll to clear battery stats
4. Reboot phone
5. wait for your battery to fully die before charging it again
And there you go its a pretty simple fix and is good if you have flashed a lot of roms. The guide said not to do it very often tho so I would be cautious but I did it once and now I am getting almost a day and a half with moderate use out of my stock battery! I have seen a lot of complaints about battery life.
Hope this helps let me know your results as I am new here
Sent from my SGH-T989 using xda app-developers app

Yeah, this has been shared before. Good info, though.
Sent from my SGH-T989 using xda premium

Wiping battery stats doesn't do anything beneficial - http://www.androidcentral.com/wiping-battery-stats-doesnt-improve-battery-life-says-google-engineer

After doing some research I did see that on androidcentral but can't wiping the stats when your on a new rom improve how your phone reports the battery stats as well?
Sent from my SGH-T989

style154 said:
After doing some research I did see that on androidcentral but can't wiping the stats when your on a new rom improve how your phone reports the battery stats as well?
Sent from my SGH-T989
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If on a new ROM, you probably wiped /data, meaning... no more battery stats.

While I'm not sure if wiping the battery stats works or not, I just posted the following in the thread of the ROM I'm currently using since battery life is a big topic there. This is a guide that I came up with after a couple of weeks of analysis and tweaks:
I'm getting at least 48 hours on my battery now, no lie. I've made it a mission over the past couple of weeks to track down all my wakelocks and get rid of all the unnecessary processes that cause those wakelocks.
After 2+ weeks of analysis using a combo of betterbattery stats, badass battery monitor, and the stock battery info, here's a list of what I've done along with running TDJ's Evo3v7 Rom.
DISCLAIMER: These are my findings for my phone and my setup in my location and my typical usage which have worked for me:
-Make sure screen brightness is set to 'Automatic'
-Use Wifi as much as possible Vs data.
-From what I've read Facebook uses a ton of battery (wakelocks) when syncing in the background. I may be the only person on earth that doesn't have a fb account so I don't have to worry about it on my phone, but just keep that in mind.
-Under Accounts and Sync try to funnel as many accounts as you can THROUGH gmail. In your Gmail account sync only what you need when you need it. Do you really need the browser, contacts, web albums, etc synced. Can you live with manually syncing calendar once a day? Keep it to a minimum.
-Disable everything under Settings > Sound > System (the 4 items at the bottom of that list, keytones, touchsounds, screen lock sound, vibrate on screen tap)
-Make sure if you have a weather app that refreshes automatically to only have it refresh to what you need. Some of these refresh every 15min. Really? Just have it refresh manually or on unlock. I've found that to be fine.
-Make sure you're signed out of Latitude after you use it - if you use it. You can't freeze, uninstall etc, without freezing/uninstaling Maps, so make sure you are not signed into Latitude (or any other location service based apps).
-Location, location, location... Under Settings > Location Services uncheck all 3 options... may need a reboot to 'stick' after unchecking (these are sometimes checked by default when first booting up your device from flashing a ROM or you check them not knowing what all they do (I know I did at first). They are helpful when restoring but are a pain on the battery in daily use. This choice is yours as there are other recovery/restore methods but I've found that I don't need these checked at all. (Sometimes even going to Google.com enables the location service and it gets stuck in perpetual wake state, I've found).
-If you don't use Google Talk, simply remove it. Although I've found that 'GTALK_...' still has wake states even with it removed (phone still communicates with Google servers even when the app is removed), it's not near as much as it used to be.
-Freeze the Maps app - if it's feasible. Maps is one app that runs 100% of the time. Take a look in your 'running apps' and see for yourself. I rarely use my maps so I froze it. Since then, location services processes have dropped dramatically as have my wakelocks associated with location. This alone has helped out my battery tons. If I need to use maps, I simply unfreeze it.
-Finally, download and flash this by eugene373: http://forum.xda-developers.com/show...30&postcount=1 This has saved me more battery than most of the things listed above combined.

Hmm your link to Eugene's thread didn't work. But thanks for the info. And I guess that does make sense that wiping data would also wipe battery stats. That's why I'm a little confused about half the people say it works and the other half say it does so I figured I'd try it out
Sent from my SGH-T989

I think he means this thread: http://forum.xda-developers.com/showthread.php?t=1739457

Holyman007 said:
I think he means this thread: http://forum.xda-developers.com/showthread.php?t=1739457
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Thank you. So will this replace any battery saving app like juice defender?
Sent from my SGH-T989

style154 said:
Thank you. So will this replace any battery saving app like juice defender?
Sent from my SGH-T989
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no that wont replace it, but adding the 2 together likely will improve battery even more.

eugene373 said:
no that wont replace it, but adding the 2 together likely will improve battery even more.
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Awesome. I downloaded your file Eugene and flashed it is it already working or do I have to move it to my system file using astro?
Sent from my SGH-T989

style154 said:
Awesome. I downloaded your file Eugene and flashed it is it already working or do I have to move it to my system file using astro?
Sent from my SGH-T989
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as long as it has init.d support, it should be working

Ok well I ran the script I will report back on of that works. Thanks again Eugene!
Sent from my SGH-T989

While I agree that turning off services or freezing them does help battery life, it kind of ruins the whole smart phone experience. The reason I have a smart phone is for up to date info at a quick glance. I am sure the info you provided will help some though. Thanks for posting.
Sent from my AOKP'ed Samsung GS2 with Eugene's kernel

[Q] How do you stop Cell Broadcast on the phone? - Using too much battery

According to Carat, stopping Cell Broadcast (as pictured) will save 2h 56m of useable battery life on my G3.
Cell Broadcast is something I've never seen on any of my previous android phones, I can't even find an option for it.
How do I stop this app or whatever it is from using up so much of my battery? Even uninstall it if required, I am rooted.

Bad4ss said:
According to Carat, stopping Cell Broadcast (as pictured) will save 2h 56m of useable battery life on my G3.
Cell Broadcast is something I've never seen on any of my previous android phones, I can't even find an option for it.
How do I stop this app or whatever it is from using up so much of my battery? Even uninstall it if required, I am rooted.
Click to expand...
Click to collapse
uninstall it or rename it and the issues should be gone you can find it in System/privapp/lgcb.apk/.odex(rename/ delete them both and reboot, do this with a root file explorer)

suljo94 said:
uninstall it or rename it and the issues should be gone you can find it in System/privapp/lgcb.apk/.odex(rename/ delete them both and reboot, do this with a root file explorer)
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Thanks that actually worked. Wiki know later whether battery has improved.
Sent from my LG-D855 using XDA Free mobile app

Bad4ss said:
Thanks that actually worked. Wiki know later whether battery has improved.
Sent from my LG-D855 using XDA Free mobile app
Click to expand...
Click to collapse
Did battery life improve?

*net_scheduler* wakelock

I am constantly seeing the *net_scheduler* wakelock, does anyone have a clue what I can do to reduce it? I tried deleting data from play services and greenify most apps, but it still appears. It came out of nowhere after updating to OOS 2.3.6.

Since you have root. Set it to 7200 seconds ... Its safe to set ...with amplify via xposed
Sent from my ONEPLUS A3003 using XDA-Developers mobile app

lummujaj said:
Since you have root. Set it to 7200 seconds ... Its safe to set ...with amplify via xposed
Sent from my ONEPLUS A3003 using XDA-Developers mobile app
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Click to collapse
Any way to manage this without Amplify? I find Xposed to be more trouble than it's worth.
Sent from my ONEPLUS A3000 using Tapatalk

great, I'm not the only one. i found that this wakelock usually pops up when my mobile data is enabled (LTE). this doesn't happen to me on WiFi. I usually just disable my data now when I don't use it, helps keep this wakelock at bay.

andyman_187 said:
great, I'm not the only one. i found that this wakelock usually pops up when my mobile data is enabled (LTE). this doesn't happen to me on WiFi. I usually just disable my data now when I don't use it, helps keep this wakelock at bay.
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I have a Note Edge N915F. In 10 hours I have 64 wakes and 592 blocked. But still it comes up in red on Amplify.
Delay time in Amplify is set to 10800 and everything works fine so far.

rapid battery drain 8.1

Ever since I flashed 8.1 , battery is draining very rapidly. After sending one email just text no attachments, battery went from 100 to 96%. Has anyone else had this issue?

canemaxx said:
Ever since I flashed 8.1 , battery is draining very rapidly. After sending one email just text no attachments, battery went from 100 to 96%. Has anyone else had this issue?
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Nope. At least give it a couple of charge cycles to see what's going on. I've noticed no changes since I installed 8.1.

I did, after using GSam Battery to find the problems it was play services and RCSService. So I uninstalled RCSService and cleared data on Google play services and it's been fine since.

antiochasylum said:
I did, after using GSam Battery to find the problems it was play services and RCSService. So I uninstalled RCSService and cleared data on Google play services and it's been fine since.
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Have you by chance used, or are using the magisk module for doze on Google play services?? Seems to work pretty well.

Badger50 said:
Have you by chance used, or are using the magisk module for doze on Google play services?? Seems to work pretty well.
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I'm stock lol. Not even unlocked bootloader.

antiochasylum said:
I'm stock lol. Not even unlocked bootloader.
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Ah, gotchya. I had no difficulties with stock either. At least for the week I had it before it wasn't stock

I have only unlocked the bootloader. I have no other mods on my phone. I have done a restart and a fresh install of 8.1 and nothing is helping. Nothing is running in the background either. I don't get it

Badger50 said:
Nope. At least give it a couple of charge cycles to see what's going on. I've noticed no changes since I installed 8.1.
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what is the name of the theme ?

crazykas said:
what is the name of the theme ?
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Swift dark with fuchsia accent.

Do you have a weak mobile signal when you are on wifi? I think Google changed the default to be keeping mobile data on even while WiFi is on in 8.1. For me, i have crap mobile signal at my wifi location, so the scanning for a signal might drain my battery. You can change the setting in developer options. Have no idea if it will help though...

I am on 8.1 since 3 days (not rooted), on full charge I have got 7 hours SOT consistently... dont think so the drain has anything to do with 8.1 update..
pls check ur apps

Go into settings/Google/instant tethering and see if it's on. That being on killed my battery life...

I have noticed quite a bit of battery drain since activating the Pixel visual core. .. definitely noticeable loss of battery and especially on the camera.

antiochasylum said:
I did, after using GSam Battery to find the problems it was play services and RCSService. So I uninstalled RCSService and cleared data on Google play services and it's been fine since.
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Hey, can you tell me how you were able to uninstall rcsservice? My option is greyed out.

radlink14 said:
Hey, can you tell me how you were able to uninstall rcsservice? My option is greyed out.
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Adb buddy.
Turn on usb debugging. And get to a PC then,
Adb shell
pm uninstall -k --user 0 <name of package.apk> with out the <>.
If my memory serves me right, it's com.qualcomm.qti.uceShimService.apk for the RCSService
This tells the phone to uninstall said apk for that specific user. And not the entire system. Which root is needed for.
Be mindful. These can come back after a factory reset.

antiochasylum said:
Adb buddy.
Turn on usb debugging. And get to a PC then,
Adb shell
pm uninstall -k --user 0 <name of package.apk> with out the <>.
If my memory serves me right, it's com.qualcomm.qti.uceShimService.apk for the RCSService
This tells the phone to uninstall said apk for that specific user. And not the entire system. Which root is needed for.
Be mindful. These can come back after a factory reset.
Click to expand...
Click to collapse
Thanks a lot... Was hoping I didn't need to get on a PC. I feel like we're in a day and age with Android where this shouldn't be necessary.
I discovered an option in developer settings where it seems "keep mobile data on " whole on wifi which I am hoping is the culprit to my battery issues.

It def drops faster since 8.1 not like what the OP is talking about, but over night it uses hardly anything then I can use it half the next day pretty much

RCSService Accesible only if rooted?
antiochasylum said:
I did, after using GSam Battery to find the problems it was play services and RCSService. So I uninstalled RCSService and cleared data on Google play services and it's been fine since.
Click to expand...
Click to collapse
RCSService Accessible/Modify only if rooted? I didn't want to but if I must hassle then OK. So to delete it i need to go root?

wiseguyy said:
RCSService Accessible/Modify only if rooted? I didn't want to but if I must hassle then OK. So to delete it i need to go root?
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3 posts up..

I can confirm that battery drain on iOS 8.1 is pretty bad...
on 8.0 i regularly used to get 6.5 to 7 hours SOT, on 8.1 its come down to 5.5 to 6 hours SOT

com.google.android.gms wakelock

Com.google.android.gms is wakelocking like a banshee and its driving me crazy. I have location history on, but always leave location off unless using it. Og pixel xl stock P. Ideas?

Well by the icon it has something to do with Google play services no ?

Mine is much worse. Google play services draining my battery. And this happens only when I'm connected to mobile data..no issues on wifi. It used to happen on Oreo and still happens on pie. I tried safe mode too. So definitely no other apps are causing it. I tried other ways like disabling location history, location, turned off double tap to wake and all other gestures, turned off adaptive brightness, turned off web and app activity in Google account settings, turned off auto sync, denied Google play services permission to modify system settings, etc. No I don't know what else is left to try. This is so annoying....

Mine all have "sms" something or other in the alarm title. I have location turned off, why is it trying to ping location? Any idea?!

danielson2047 said:
Mine all have "sms" something or other in the alarm title. I have location turned off, why is it trying to ping location? Any idea?!
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I feel it's related to Google account because this is happening in safe mode too so it's definitely not a 3rd party app causing this drain. It would be great if someone could help us find a way to figure out the cause.

There's a Magisk module for adding Google play services to the list of apps that are put to sleep when not in use. I would try that.

Phalanx7621 said:
There's a Magisk module for adding Google play services to the list of apps that are put to sleep when not in use. I would try that.
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Any solution for unrooted users?

wazza1991 said:
Any solution for unrooted users?
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Not for a system service like that running wild. You can use Greenify for non system applications (if not rooted), but you'd have to root in order to take care of this issue. You could always try doing the laundry list: wiping app data/cache, force stopping it, or even starting fresh and wiping the phone. However that would take longer than it would to root the device.

Phalanx7621 said:
Not for a system service like that running wild. You can use Greenify for non system applications (if not rooted), but you'd have to root in order to take care of this issue. You could always try doing the laundry list: wiping app data/cache, force stopping it, or even starting fresh and wiping the phone. However that would take longer than it would to root the device.
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Click to collapse
I have tried wiping data/cache, tried formatting many times on Oreo and pie as well. Looks like the only option is to root. Will banking apps/Google pay work on a rooted phone?

wazza1991 said:
I have tried wiping data/cache, tried formatting many times on Oreo and pie as well. Looks like the only option is to root. Will banking apps/Google pay work on a rooted phone?
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With Magisk it will, it is a very easy app to navigate , and rooting w/ Magisk only takes a few steps. Boot into TWRP via fastboot ( there are TWRP.img files , that's what you'd want here ) flash Magisk, reboot to system.

Looks like it's not just me...my friend who is using a pixel 2 xl is also having play services battery drain.

Any fix for this?