This is probably just a coincidence but my charger has been making this weird buzzing noise from day one when plugged in, although it's fine was loaded . I didn't use my laptop that much so I figured I wouldn't have to return it until a month later it stopped charging every second and then started charging again. It's constantly moving back and forth, which is bad for battery life. Anyway, that's the problem, maybe it's a specific charger, maybe a laptop, a new charger is on the way so I can check. Although I bought from another seller.
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