Why does the samsung s3 mini keep charging by its self ever 3 seconds all day long...

[AC Question]

Its just on the couch and u can hear it going on charge every 3 seconds the phone was on 10% then went to 70% and we did not even put it on charge... what can it be?

 

[belodion]

There are various possibilities. Let's start with the battery. Is it in good, unswollen condition?

https://forums.androidcentral.com/showthread.php?t=409154