Lenovo ThinkPad Yoga 260 User Manual page 148

6. Install the new coin-cell battery
7. Reinstall the base cover assembly. See "Replacing the base cover assembly" on page 123.
8. Turn the computer over again. Connect the ac power adapter and all cables to the computer.
After you replace the coin-cell battery, reset the system date and time in the ThinkPad Setup program.
See "Date and Time menu" on page 78.
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ThinkPad Yoga 260 User Guide
1 and attach the connector 2 .