Battery Information
Battery Type
Garmin and Suunto chest belts take one 2032, which is a 3-volt lithium coin cell battery.
Battery Life
- Garmin: About 1000 hours at one hour of use a day
- Suunto: About 300 hours
Battery Replacement
Note: Suunto recommends changing the battery cover and O-ring whenever the battery is changed to ensure the transmitter remains clean and water resistant. Replacement covers and O-rings can be obtained from Suunto.
Garmin and Old Style Suunto Chest Belt
- On the back of the transmitter, open the battery door by rotating it counter-clockwise.
- Remove the existing battery by pressing lightly on one edge of the battery until it pops free of the compartment.
- Wait 30 seconds. Place the new battery into the battery compartment with the positive side facing up.
- Replace the battery compartment cover and turn it clockwise until it is locked.
Suunto Comfort Belt
- On the back of the transmitter, gently pry the battery door open using a screwdriver.
- Remove the existing battery by pressing lightly on one edge of the battery until it pops free of the compartment.
- Place the new battery into the battery compartment with the positive side facing up.
- Replace the battery compartment cover and press it down on all edges until it snaps closed.