1120 Coin-Cell Battery; 1130 Memory Module (For Intel Models Only) - Lenovo 21CH004MGE Hardware Maintenance Manual

1120 Coin-cell battery

DANGER
Use only the authorized battery specified for the computer. Any other battery could ignite or
explode.
For access, remove these FRUs in order:
• "1020 Base cover assembly" on page 65
• "1030 Built-in battery" on page 66
Removal steps of the coin-cell battery
When installing:
• Ensure that the connector is attached firmly.
• Reset the system date and time in the BIOS menu.

1130 Memory module (for Intel models only)

For access, remove these FRUs in order:
• "1020 Base cover assembly" on page 65
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T16 Gen 1 / P16s Gen 1 Hardware Maintenance Manual