The Polar WearLink 31 Battery Set is compatible with both the Polar WearLink 31 Coded Transmitter and the Polar Wearlink W.I.N.D Transmitter.
The set includes the CR2025 battery and the battery cover with sealing ring.
Please consult the Wearlink manual details for the battery changing process.
Returns policy
If you need to return an item please send us an email within 7 days of receipt and we’ll issue you a returns number.
For detailed terms see our Terms & Conditions.
Delivery
All items are delivered using a tracked insured service
Delivery charges are shown when you checkout.
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Next Day Delivery
Next Day Delivery is only available in mainland UK. You will be able to select Next Day Delivery at your basket if all the items you are purchasing are eligible for it.
