Battery not detected...

jewie27

Distinguished
Sep 12, 2011
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18,560
I had windows vista on my Sony VGN-NR160E laptop and the battery was not being detected by the OS. I upgraded last night to Windows 8.1 and still have the same problem. The battery is completely dead and won't charge. Windows 8.1 still says "battery not detected." I can only use the laptop while plugged into the wall. Any solutions out there? I want to try to fix it before buying a new battery.