Help Low Battery

[Artyem]

Hello. Sometimes when the battery life shows about 40% the phone turns off by itself and when I try to turn it on it shows that the battery is empty. How can I fix this problem? I just want to know when the battery will be low and not just guess. Thanks!

 

[varungnath]

Hello. Sometimes when the battery life shows about 40% the phone turns off by itself and when I try to turn it on it shows that the battery is empty. How can I fix this problem? I just want to know when the battery will be low and not just guess. Thanks!

try a batterypull and see if it helps.
Varun

 

[DamianGTO]

Hello. Sometimes when the battery life shows about 40% the phone turns off by itself and when I try to turn it on it shows that the battery is empty. How can I fix this problem? I just want to know when the battery will be low and not just guess. Thanks!

Well it can be that your battery is not calibrated or its broken.
The first one you need to be rooted to solve and the other is only to change the battery.