What happend to my laptop battery?


i accidentally plugged in the wrong 19 Volt adapter for my notebook. turned out it had the reverse polarity of the original laptop adapter and it killed the laptop after which i sent it some where to be fixed where the technician told me to get a replacement battery, other wise i would have to use the laptop with only the adapter. is it possible that the battery protection circuit got damaged, and furthermore could it be repaired?

thanks in advance :)

PS; the specific sku of my notebook is x556uq.

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