Expression MR400 Instructions for Use
Press the battery eject button to partially eject a main cart battery
from a battery compartment, and then grasp the battery and pull
to remove it completely from the MR400.
Battery eject button
(If the battery does not release, apply a slight forward pressure to
the battery while pressing the battery eject button.)
Repeat steps 1 and 2 to remove the other main cart battery on the
opposite side of the MR400.
Remove the two screws that secure the service panel cover to the
MR400 and then remove the service panel cover.
Main cart battery
Maintenance and Troubleshooting 14‐3