Battery change in Polar G3 GPS sensor W.I.N.D and Polar G1 GPS sensor

You can change the battery yourself to G1 GPS sensor and G3 GPS sensor W.I.N.D.

1. Open the battery cover by turning it counterclockwise with a coin.
2. Remove the old battery.
3. Wait for 90 seconds and then place the new battery inside with the positive (+) side facing the cover.
3. Close the cover by turning it clockwise with a coin.

Use an AA-sized alkaline battery. We recommend you to use a lithium battery or rechargeable NiMH battery in temperatures 5°C and below. Cold temperature decreases the life of an alkaline battery.