Lenovo M4400s notebook - Manual (Page 55)

Removal steps of the backup battery
DANGER
Use only the battery specified in the parts list for your computer. Any other battery could ignite
or explode.
Carefully pry the backup battery out using a screwdriver.
1080 Base cover
For access, remove these FRUs in order:
•
“1010 Battery pack” on page 42
• “1020 Bottom slot cover” on page 42
Chapter 8 . Removing or replacing a FRU 49