xperia z3 plus have 50%++battery power but tge phone suddenly off

[Android Central Question]

Many time my xperia z3 plus suddenly off while battery have much more power.Sometime the battery was 50℅+++ more power but the phone off. When i turn it on it's show the battery is empty and the phone cant turn on but when i connect the charger the battery show 50%+++ more of power.why it's happen and what muat i di to solve the problem?

 

[B. Diddy]

Welcome to Android Central! That's usually a sign of a failing battery. If the same thing happens in Safe Mode, then bring it to a repair shop (or contact Sony if it's still under warranty).