Suunto T6 User Manual page 30

To replace the battery:
1. Turn the battery compartment cover of the Suunto t6 to the open position using a
coin or the battery compartment key
2. Open the battery compartment cover and remove the old battery.
3. Install the new battery carefully underneath the contact spring at the side of the
battery compartment with the positive side (+) facing up. Be careful not to bend
the contact, as it will damage the device.
4. Check that the O ring is in the correct position around the battery compartment
cover. If you use the old battery cover, make sure that the O ring and all surfaces
are clean and dry. Do not stretch the O ring.
5. Replace the cover and turn it until the groove is aligned with the close position
marker.
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