[HELP] kernel and android system draining too much battery! - G2 Q&A, Help & Troubleshooting

I left my phone at 83% before going to sleep. When I woke up, it was only 72%. I can't seem to find the culprit. BBS also shows about 2 hours difference between screen on time and device awake.
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Sent from my LG-D802 using xda app-developers app

Here you can see what my battery drain is like. My screen on time isn't bad but the other is.
Sent from my LG-D802 using xda app-developers app

Now turning "Knock-on" feature off and gonna see how it goes

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What causes this?

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Sent from my PC36100 using XDA App
What causes what?
try wiping your battery stats with batterycalibration in the market. if that dont work you need a new battery...
Looks like your display has a "wake lock" ie. It doesn't sleep
Support TrevE !!
Wakelock...gremlins in your phone...Sense....un-calibrated battery...
Try calibrating your battery, then using the spare parts ap to check for wakelock.
Even with wakelock tho it should last at least 3 hours... I think his battery is biting the dust.
Sent from my PC36100 using xda premium
Will try all those suggestions. Thank you all. I will also order new battery.
Sent from my PC36100 using XDA App
Try the Galileo battery from eBay. Cheap n works excellent for me
Support TrevE !!

Battery won't calibrate

I've tried everything but reboots still make my battery jump. Right now it went from 9% to 59% on a random reboot
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I don't know what else to do. I've done the battery calibration app. I have no battery stats in system/bin to delete (I believe that was the folder) and I've done battery stats erase in recovery, still doesn't help.
Sent from my Nexus S 4G using xda premium
Try using a different battery. If you were using a SBC kernal you might of killed it.
Sent from my Nexus S 4G using Tapatalk

[Q] Battery drop issue

battery was fully charged at night, then in the morning it was found to be at 0% with 95% used on "Screen"..
the screen wasnt even on during the whole night.. what could be the possible cause?
Nexus 7 8GB on Stock 4.1.2 rooted.. (this is not mine, so dont look at my signature.. )
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anyone got any idea? tia..
iamelton said:
anyone got any idea? tia..
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Better battery stats for the wakelocks and cpu spy to see if your device is deep sleeping
Sent from my Nexus 7 using xda premium

Sucky battery Life

Anyone know why im getting such poor battery life?
Screen is at 25% brightness.
Powermanagementservice is featured on betterbatterys stats as high %
also:
Also sns_async_ev_wakelock
Sns_periodic_wakelock
2h 43 on phone and 2hrs screen time.
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Sent from my Nexus 4 using Tapatalk 2
You can make phone calls with this thing?
MakoVince said:
You can make phone calls with this thing?
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Yes i know its rare for an XDA member to have people to talk to other than via forums.

Chrome:sandbox killing battery , any thoughts?

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Same!!!! You worked out what it is?
same like wtf is this
These images don't prove any real problem.
To be sure of battery draining, just find and install betterbatterystats application and check partial wakelocks tab.
Upload the ss here for checking.
Unleashed by my Nexus 4
Post battery stats please
Usually power "drain" is due to wakelock
Sent from my Nexus 4 using xda app-developers app
I had this. I assume it is due to some script from a rogue website. I rebooted and it's fine.

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