Why is my tablet's battrey life draining fast ?

[Android Central Question]

My Lenovo Tab 4 10's battery is draining fast after upgrading to android 8.1 . My tablet's battery is draining fast at night when it is in sleep . After upgrading from Android 7 to 8 my tablet has many bugs and fast draining battery .. when I game for 5 minutes battery drains 7% (86% to 79%).Earlier in Android 7 the battery was very good and gave up to 15 hours of battery life..now it give hardly 4 - 5 hours.

I hope for a positive reply

 

[methodman89]

Open the Settings, battery, and see the usage percentage. Post a screen shot if the culprit doesn't jump out at you.

 

[B. Diddy]

Welcome to Android Central! Try wiping the cache partition: https://www.hardreset.info/devices/lenovo/lenovo-tab-4-10-wi-fi/recovery-mode/

 

[methodman89]

Welcome to Android Central! Try wiping the cache partition: https://www.hardreset.info/devices/lenovo/lenovo-tab-4-10-wi-fi/recovery-mode/

Always a good place to start