1090 Backup Battery - Lenovo ThinkPad Edge E420 Hardware Maintenance Manual

Step Screw (quantity)
1
M2 × 3 mm, wafer-head, nylon-coated (1)

1090 Backup battery

For access, remove these FRUs in order:
• "1010 Battery pack" on page 56
• "1030 Bottom slot cover" on page 58
Table 17. Removal steps of backup battery
DANGER
Use only the battery specified in the parts list for your computer. Any other battery could ignite or explode.
When installing: Make sure that the connector is attached firmly.
66
Hardware Maintenance Manual
Color Torque
Black 0.181 Nm
(1.85 kgfcm)