The AA batteries can be replaced by removing the rear battery
cover.
BatteriesReplacement
Note
Only use AA batteries to power the remote.
Unscrew the captive battery cover screw.
Remove the battery cover by pivoting the bottom away from
the remote control.
Remove the batteries.
Ensuring correct orientation, insert the new batteries.
Battery orientation is indicated in the battery compartment
and is viewable when no batteries are present.
Replace the battery cover by inserting the top lugs into
the remote control at a slight angle, and then push the bottom of
the cover until it is fully inserted.