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ThinkPad Power Manager shows inaccurate battery remaining time after wake-up from sleep or standby mode

Symptom

When you wake your ThinkPad from sleep or standby mode, Power Manager shows inaccurate battery remaining time in the first minute. One minute later, Power Manager shows accurate battery remaining time. It needs some time for the battery to adjust the status from sleep or standby mode.

Affected configurations

For Windows 7 and Windows Vista operating systems:
ThinkPad Power Manager 3.62 and earlier

For Windows XP operating system:
ThinkPad Power Manager 1.99j and earlier

Solution

Power Manager enables you to choose to show the battery remaining time or remaining percentage of battery capacity. You can choose to show the remaining percentage of battery capacity to get the accurate battery status.

To show the remaining percentage of battery capacity, right-click the Power Manager icon on the Windows notification bar and click Remaining percentage.