Lenovo L420 Laptop User Manual


 
1140 Backup battery
For access, remove these FRUs in order:
“1010 Battery pack” on page 57
“1030 Optical drive or travel cover” on page 60
“1120 Palm rest assembly with cables” on page 74
DANGER
Use only the battery specied in the parts list for your computer. Any other battery could ignite
or explode.
Table 22. Removal steps of backup battery
2
1
When installing: Make sure that the battery connector is attached rmly to the system board.
1150 Bluetooth daughter card
For access, remove these FRUs in order:
“1010 Battery pack” on page 57
“1030 Optical drive or travel cover” on page 60
“1120 Palm rest assembly with cables” on page 74
80 Hardware Maintenance Manual