User manual - DT-810M50RC

E-20
Power Supply
To remove the lithium-ion battery pack
1 Slide the main battery compartment cover
lock to the FREE position and remove the
cover.
2 Slide the lithium-ion battery pack from the
main battery compartment cover.
Installing the Back-up Battery
1 Use a screwdriver to rotate the screw that
secures the backup battery holder in place
counterclockwise to loosen it.
2 Insert a screwdriver or some flat object into
the back of the backup battery holder and pull