Remove The Coin-Cell Battery - Lenovo 14ADA05 Hardware Maintenance Manual

Figure 9. Disconnect the wireless antenna cable, remove one screw and slide the WLAN card out of the slot
Screw specifications
M2 x L2.5
Go to
https://support.lenovo.com/partslookup
part:
WLAN card

Remove the coin-cell battery

Make sure the following FRU (CRU) have been removed:
"Remove the lower case" on page 28
Step 1. Disconnect the battery pack cable from the system board.
Attention: Do not pull the cable. Use your fingernail to disconnect the cable.
Number of screws
1
to look up the Lenovo part number of the following replacement
.
Chapter 4 Removing a FRU or CRU
33