MBP 2018 says power adapter is connected even when it is not (and doesn't charge)

[Theguy1904]

Hello guys, pretty much what the title says, my MBP keeps saying it has de power adapter plugged in even when it isn't and doesn't charge the battery.

Anyone have any idea what may be causing this?

 

[Cory Cooper]

Hello and welcome.

Normally, that is a symptom of hardware failure and/or liquid damage. It could be the battery itself, or the MagSafe board.

You could try a hardware test and a couple of resets to see if they may fix the issue, otherwise, it may need a hardware diagnosis/repair.

• Use Apple Diagnostics to test your Mac
• How to reset the SMC of your Mac
• Reset NVRAM or PRAM on your Mac

See if that helps,

C