Fujitsu ECLIPSE CD8443 Owner's Manual page 111

•Be extremely careful not to swallow the battery.
•The battery life is approximately one year. If the remote
Caution
control unit does not operate correctly or if the button lamp
gets dim, replace the batteries.
•Be sure to orient the batteries correctly so that the positive
and negative poles match the diagram.
•Do not use one new battery and one old one; use two new
batteries.
•Use only two of the same kind of battery.
•If any liquid is seen leaking from the batteries, remove both
batteries and dispose of them properly. Thoroughly clean
the battery compartment with a dry cloth. Then install new
batteries.
How to use an optional NOB remote control
111