When my phones off and i turn it on it will instantly am turn off about 5 different times

[AC Question]

When my phone is off and turn it back on it will turn itself back off almost instantly and it takes a couple of trys to make it stop, this isn't like a full power off it just turns it off

 

[B. Diddy]

Welcome to Android Central! Which phone? The battery might be failing -- can you change it?