Polar Electro RCX3 Getting Started Manual page 19

Changing Training Computer Battery
1. Use the battery cap tool to open the battery cover. Position
the tool so that it fits in correctly on the top of the back cover
and turn it from CLOSE to OPEN. Remove the battery cover.
2. Lift the battery out carefully. Be careful not to damage the
metal sound element (*) or the grooves. Insert a new battery
with the positive (+) side outwards.
3. Close the cover with the battery cap tool and re-enter the
basic settings.
Changing Heart Rate Sensor Battery
1. Lever the battery cover open by using the clip on the strap.
2. Remove the old battery from the battery cover with a suitable
sized small ridgid stick or bar, such as a toothpick. A
non-metal tool is preferable. Be careful not to damage the
battery cover.
3. Insert the battery inside the cover with the negative (-) side
outwards. Make sure the sealing ring is in the groove to
ensure water resistance.
4. Align the ledge on the battery cover with the slot on the
connector and press the battery cover back into place. You
should hear a snap.
Danger of explosion if the battery is replaced with wrong type.
ENGLISH 19