Lenovo ThinkPad Edge 11 Hardware Maintenance Manual page 61

The only exception to this is if the battery pack is physically damaged or a customer is reporting a possible
safety issue.
If ThinkVantage Toolbox is not installed in the computer, the customer should download this program
before a non-physically damaged battery pack is replaced. Note that a physically damaged battery pack
is non-warranty replacement.
Table 8. Removal steps of battery pack
DANGER
Use only the battery specified in the parts list for your computer. Any other battery could ignite or explode.
Unlock the battery latches
the direction shown by arrow
When installing:
Install the battery pack in the slot, and then make sure that the battery latch is in the locked position.
1
. Holding the battery latches in the unlocked position, remove the battery pack in
2
.
.
Chapter 8 Removing and replacing a FRU
55