How to Replace a Battery Cover on a Polar WearLink 31 Coded

The WearLink 31 is a coded transmitter that is compatible with several Polar heart rate wrist monitors. The strap is machine washable and is made with anti-bacterial cloth. It has a side-clip mechanism that makes it easy to take on and off. You can replace the lithium battery in the WearLink 31 transmitter. If you misplace the battery cover, you can order a battery set from Polar and replace the cover.

Things You'll Need

  • Coin
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Instructions

    • 1

      Purchase the Wearlink connector battery set from Polar. It includes a new battery, battery cover and sealing ring.

    • 2

      Insert the new battery inside the battery cover with the negative (-) side of the battery facing out.

    • 3

      Press the sealing ring in the groove around the battery cover.

    • 4

      Press the batter cover into the receptacle on the back of the WearLink 31 transmitter.

    • 5

      Use a coin to turn the cover clockwise to secure it in place.