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
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.
Release the cable from the cable guide of the backup battery as shown in the direction of arrow
Note: Your models may look slightly different from the illustration above.
When installing: Make sure that the connector is attached firmly.
66
Hardware Maintenance Manual
Color Torque
Black 0.181 Nm
(1.85 kgfcm)
2
.