My Toshiba laptop is connected to the elec. wall socket but it stays at 51% battery remaining. Do I need to turn off computer to recharge?
Basically what jdc said. If you are only using one battery, then the battery is at 100% at 51%. Basically what appears to have happened is you were charging it while it still had a charge. That's not good. Let the battery basically run out before recharging. Believe it or not, charging it while it still has charge hurts the battery and makes it to where it can't hold a full charge anymore. The more you do this, the less of a charge it can hold. You might need to get a new battery pack if it's too much of an issue.
But, if you have two battery packs in (not sure if your laptop has that capability or not), then it appears as one will not charge, so it's time for a replacement there.
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