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

Change the battery yourself by following the instructions below:

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.

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