ThinkPad 11e 5th Gen User Manual page 56

The following illustration is an example. You can insert the pen into the slot for charging no matter the
computer is in the notebook mode, stand mode, tent mode, or tablet mode.
Note: Ensure that your computer is on or in sleep mode. Otherwise, the pen will not be charged.
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11e 5th Gen and Yoga 11e 5th Gen User Guide