Lenovo ThinkPad 13 Hardware Maintenance Manual page 35

Attention: Lenovo has no responsibility for the performance or safety of unauthorized batteries, and
provides no warranties for failures or damage arising out of their use.
The battery status indicator is located in the lower-right corner of the screen. To view the percentage of
battery power remaining, click the battery status icon.
Checking the operational charging
To check whether the battery charges properly during operation, do the following:
1. Discharge the battery until the remained battery power is less than 50%.
2. Perform operational charging. Click the battery status icon in the lower-right corner of the screen to
display detailed battery information. If it indicates that the battery is not charging, replace the battery.
3. Check the battery status again. If the same error still exists, replace the system board.
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