Epson RC620 CU Manual page 168

Maintenance 6. Maintenance Parts Replacement Procedures
(5) Remove a screw of the battery fittings
(6) Pull out the battery fittings and
NOTE

(7) Cut off the wire tie by nippers and
NOTE

152
located below the Large Fan.
disconnect the relay connector.
The lithium battery cable is connected
to the main chassis. Be sure to pull it
out slowly.
remove the lithium battery.
Be careful not to scratch the battery
when cutting off the wire tie.
RC620 Rev.8