1070 Backup Battery - Lenovo ThinkPad S440 Hardware Maintenance Manual

Step Screw (quantity)
2
M2 × 3 mm, wafer-head, nylon-coated (1)
When installing: Plug the gray cable into the connector marked MAIN or M, and the black cable into the
connector marked AUX or A on the card.

1070 Backup battery

For access, remove this FRU:
• "1020 Base cover assembly" on page 61
Removal steps of the backup battery
DANGER
Use only the authorized battery specified for your computer. Any other battery could ignite or
explode.
When installing: Ensure that the connector is attached firmly.
Color Torque
Black 0.196 Nm
(2.00 kgf-cm)
.
Chapter 9 Removing or replacing a FRU
67