How to reset the battery using the Thinkvantage Power Manager?
Steps 1. Open the Thinkvantage Power Manager, by clicking on the green battery icon on the taskbar.
Steps 2. Within the Thinkvantage Power Manager windows click on the 'Battery' Tab.
Steps 3. Click on the Brain Maintenance Button.
Steps 4. Within the Battery Maintenance Window click on the 'Battery Reset'
Steps 5. Follow the instruction in the Perform Reset Windows, and click on continue when ready.