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Heya folks, I've got a medion eraser laptop that I've had for some time. I've recently been having a strange problem getting the battery to change. It charges fine when plugged in, then if I start it while it's charging it keeps charging fine. But it won't start charging if I plug it in when it's already on and if it stops charging when plugged in because the battery is full, it won't start again. 

Anyone having the same issues or know of a fix?