Laptop dies as soon as I pull out the AC adapter

hb1547

Honorable
Jul 11, 2012
1
0
10,510
Like the title says, whenever I unplug my AC adapter, my laptop dies immediately. The laptop will not power on without the cord plugged in.

Obviously my guess is the battery, but Windows (7, x64) shows the battery as 100% charged and does not report any problems with the battery. I ran powercfg -energy which told me that the battery has about half of its rated capacity, and I unplugged the battery and adapter and held down the power button. No change.

Any tips? I'm not surprised if it's the battery, but it seems odd that Windows doesn't see any issues with the battery.