InFocus — battery

Address:	Dehradun, Uttarakhand
Website:	Amazon

The phone shuts down automatically when the battery percent is very high and when it restarts the battery percent decreases. It even shuts down on battery above 80% plz just tell me what to do with it. And when it shuts down automatically, sometimes it opens with the battery percent decrease and sometimes it does not open at all and if it does it shuts down again.