laptop battery isn't seen

laptop battery isn't seen I have a laptop, which was most of the time on wired power. Now it seems to not work at all on battery and in Control Panel->Power Option battery isn't recognized at all(is 0%).
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Guest [Entry]

"Usually this means that the battery is dead. It happens when a laptop is left plugged in constantly for extended periods of time. People wrongly attribute this to ""overcharging"" which does not happen.

What actually happens in that Lithium-Ion batteries need to discharge and recharge from time to time, otherwise the cells become damaged. If you have it constantly plugged in then chances are that the battery cells have completely degraded.

If you have a friend with the same model of battery you can pop it in just to verify that it isn't something more serious, but it usually isn't."