Remove The Rtc Battery - Lenovo Yoga C740 Series Hardware Maintenance Manual

Figure 4. Disconnect the cable and remove five screws
Screw specifications
M2.0 x L3.5 x D4.5 x T0.5
Step 2. Remove the battery pack.
Figure 5. Remove the battery pack
Go to
https://support.lenovo.com/partslookup
part:
Battery pack

Remove the RTC battery

Make sure the following FRU (or CRU) have been removed.
28
Lenovo Yoga C740 series Hardware Maintenance Manual
Number of screws
5
to look up the Lenovo part number of the following replacement