why my mobile gets switched off when i turn on wifi ?

[Android Central Question]

i am using moto g4 plus for almost 8 months......the mobile had decent performance and i did not encounter any problem till last week....now my phone gets switched off all of a sudden and the battery also drains like hell....any suggestions plz

 

[B. Diddy]

Welcome to Android Central! Does that always correspond with turning on wi-fi? Does the battery drain suddenly and then the phone turns off, or are they two separate issues?