What Happens When We Charge Phone Overnight. The battery will start to discharge again and when. All good quality phones these days manage the battery automatically.
While leaving your phone plugged in overnight is unlikely to do any major harm to your battery because it will stop charging at a certain level. According to Battery University leaving your phone plugged in when its fully charged like you might overnight is bad for the battery in the long run. Even though a charger turns off the juice when your phone reaches 100 the charger will continue to top off the charge during the night says Bradshaw.
The charge does stop at 100 this protection is required by all battery manufacturers and even US shipping laws If you turn your phone completely off at 80 thats good for storage it will degrade slower.
Needless to say I never left my phone to charge overnight again. Leaving the phone on charge should be fine the phones charge electronics should stop taking charge when charging is complete and stay off until the battery voltage drops by a certain amount. I typically plugged my phone before going to bed and let it charge overnight so that when I wake up its showing 100 and ready to tackle a new day. Im pretty sure I am not the only one doing this but obviously we dont wake up at intervals during the night to check if the phone is now fully charge.
