User's Manual

Control Unit

The control unit’s battery is a rechargeable AAA battery and needs

replacing approximately every 2 years.

Note

The batteries must be charged before the first use,

after every day’s use, and after extended storage.

1. Remove the screw from the battery cover on the back of the

control unit.

2. Remove the battery cover.

Remove the old battery.

3. Insert a new battery (rechargeable AAA), according the “+” and "-

" marks in the battery socket.

4. Slide the cover back into place and tighten the screw.

Figure 13: Control Unit and Battery

Control Unit

Battery Cover

and Screw

Batter

Tip: If you are unable to replace

the battery yourself, your clinician

or local watchmaker should be

able to assist you