The Watch Link uses a CR 2032 battery. The battery life under normal use is between 3 and 12 months depending on use conditions.

We guarantee the Watch Link battery for 60 days for new pod purchases. If your battery fails within the first 60 days from the date of purchase, we will replace the battery free of charge including priority shipping (US addresses only). 

New batteries can be purchased on Amazon.com and at retailers such as Home Depot, CVS, and WalMart. The retail cost is approximately $2.00.