“Is it best to leave this plugged in when using or to charge it, disconnect power, and then let the battery run down? I had a Samsung that had a Battery Extender setting that would only charge to 80% when plugged in, supposedly to extend the battery life.”

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• You can use this device while it is plugged in. It is not necessary to do so. This device will charge to 100% and maintain the charge level while plugged in.

  Answered by Lenovo Product Expert 8 years ago

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