Redmi note 4 battery

[Stefan Gvozdenovic]

Situation is this:
Phone suddenly start to heat (41C battery), and lose battery life very fast.
I reset this, change charger, and situation is the same.
Somethimes it heating when i do nothing, its cold, and suddenly heat, often is this when i charge phone, than become hot, so i turn off and turn on when he bacame normal, and work good, until suddenly start to heat. Advices?

 

[B. Diddy]

It sure sounds like a failing battery. Bring it to a repair shop to replace the battery (or look at some DIY videos on the web to try to replace it yourself).