SUUNTO Yachtsman - Manual (Page 12)

10
A low battery-warning indicator is activated when 5-15 percent of the battery capacity is still available. When this occurs
we recommend replacement of the battery.
Extreme cold weather will activate the low battery-warning indicator. Though the indicator is activated, the battery may
not need to be replaced due to this condition. In temperatures above 10°C (50°F) and the low battery warning indicator
is activated, the battery will need to be replaced.
Note: Heavy use of the electroluminescent backlight, and compass will significantly reduce the life of the battery.
To replace the battery:
1. turn the Wristop Computer to view the backside;
2. insert a coin in the coin slot located on the battery compartment cover;
3. turn the coin counterclockwise to the open position marked on the back of the case;
4. remove the battery compartment cover;
5. remove the old cell from the battery compartment and ensure the O-ring and all surfaces are clean and dry. Do not
stretch the O-ring.
6. place the new cell into the battery compartment (negative side down, positive side up);
7. ensure the O-ring is in place to keep the Wristop Computer waterproof and place the battery compartment cover back
onto the backside of the Wristop Computer;
8. insert a coin back into the coin slot; and
9. turn the coin clockwise to the close position marked on the back of the case.
Note: Battery replacement should be performed with extreme care so as to ensure the Wristop Computer continues to
remain waterproof. It is the operator’s responsibility to take due care to ensure the Wristop Computer remains waterproof.
It is also advisable to replace the O-ring seal.
After every battery replacement, it is necessary to calibrate the magnetic sensor. Details on performing this process are
found in Calibrating the Compass section of this manual.