1120 Backup Battery - Lenovo ThinkPad T520 Hardware Maintenance Manual

Table 25. Removal steps of BDC-3.0
Step Screw (quantity)
1
M2 × 3 mm, wafer-head, nylon-coated (1)
When installing: Make sure that the connector is attached firmly.

1120 Backup battery

For access, remove these FRUs in order:
• "1010 Battery pack" on page 60
• "1030 DIMM slot cover" on page 62
• "1060 Keyboard" on page 67
• "1100 Keyboard bezel assembly" on page 76
DANGER
Use only the battery specified in the parts list for your computer. Any other battery could ignite
or explode.
Torque
Color
Silver 0.181 Nm
(1.85 kgfcm)
.
Chapter 9 Removing and replacing a FRU
79