[Android Central Question]

Hello:
I use a Samsung Galaxy Grand Prime phone. Each time I remove the battery to change a SIM card, i discover when i put the battery back in to the phone, that the battery has run down. It happens even when it is fully charged. I changed the battery of the phone about two weeks ago, but I am still having the same problem with the new battery.
What exactly is causing thiss problem.

[mustang7757]

How much does it run down ? I'll leave a link to register so you can communicate here , as a guest account you can't.https://forums.androidcentral.com/sh...d.php?t=409154

[B. Diddy]

Welcome to Android Central! Where did you get the new battery from? That's an old phone, and replacement batteries that you buy now have probably been sitting on a shelf for years, which means they've also been degrading gradually.