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Android Nougat - Battery - OP3T - Tips

Device: OnePlus 3T
OS: RR 
Kernel: blu_spark
Rooted: Yes

I have been trying to get my battery life (SOT) to at least 4 hours but unable to do so. However, after 2 weeks of monitoring and analysis I'm at 5 hours SOT with 30% battery remaining. I have tried all the ROMS on xda both CM based and Oxygen based and the results were always the same 2.5 hours max SOT. I'm currently running RR ROM with bluspark kernel fastlane active.

Here is what helped:

- Installed WakeLock Detector and Better Battery Stats.

- Monitor the logs on both for a couple of days, you will definitely see what is sucking the battery out of your phone. After a point, you would think everything is normal but still your battery is not great. (FYI - Facebook app must go. It was a huge battery sucker.)

- I uninstalled a few apps which were draining the battery. Others I chose to keep.

- At this point, I still had the same battery life.

- Install greenify -> Greenify the apps and your battery life will slightly increase.

- I did notice that the Cell Standby was using a lot of battery. I have two SIM cards out of which I barely use the second one and that SIM works on VOLTE. I disabled that SIM card completely and it did wonders. That accounted for almost 10-20% of battery life.

- Lastly - I have installed Tasker - and I have a bunch of profiles which help me automatically switch to Wifi, toggle autosync every 15 mins, turn off data while I'm asleep etc.

- Post my tasker implementation, I let the profiles settle in and wiped my cache to start afresh and now it looks like I should be able to get to 6-7 hours SOT easily!

Hope this helps.

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