User's Manual

30
User’s Guide
Control Unit
The Control Unit’s battery is a rechargeable AAA battery and needs replacing
approximately every 2 years.
1. Remove the screw from the battery cover on the back of the Control Unit.
(The screw may be under an ID sticker-gently peel it off the screw).
2. Remove the battery cover.
3. Remove the old battery.
4. Insert a new battery (rechargeable AAA), according to the polarity marks
in the battery socket.
5. Slide the cover back into place.
6. Tighten the screw.
Note: If you are unable
to replace the battery
yourself, your clinician or
local watchmaker should
be able to assist you.
Control Unit
Screw
Battery
Battery Cover
Figure 14: Replacing the Control Unit's Battery