Lenovo ThinkPad X1 User Manual page 50

Installing a battery to power the pen
Depending on the model, your pen might not be installed with a battery. To install an AAAA alkaline battery,
do the following:
1. Unscrew the end cap.
2. Insert an AAAA alkaline battery into the battery compartment.
3. Reinstall the end cap.
4. Tighten the end cap.
Using the pen holder to store the pen
Your computer might come with a pen holder. Use the pen holder to store the pen on your computer by
doing the following:
1. Insert the pen holder into the pen holder slot on your computer.
2. Insert the pen into the pen holder horizontally as shown.
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User Guide