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My laptop won’t power up with the battery in or out. No light will come on. I replaced the battery with a new one and it worked for a while but it killed that battery too. Could it be the motherboard or something to do with the power connection where the power adapter is plugged in?
@bpmj1957 “replaced the battery with a new one and it worked for a while” sounds like your battery is not getting charged. " but it killed that battery too" means what. No more power on that battery? Again most likely it is not charging. Check your AC power adapter and make sure that the output to your computer is appropriate. Then check the DC-in jack on your computer to see if the power even gets to the board. After that you will have to check the motherboard. If you can find any identifying marks on your motherboard, we might find a schematic that would let you trace your charging circuit etc.
