Invisible Fence ® R21, R22, and R51 Compatible Dog Collar Battery

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This Invisible Fence®-compatible dog collar battery is made in the USA by Perimeter Technologies. The 3-volt lithium replacement battery is 100% compatible with Invisible Fence® brand R21, R22, and R51 dog collar receivers and has a battery life of up to 4 months. It ranks high in durability and performance and is a great value compared to Invisible Fence® brand batteries.

This battery is made for Invisible Fence® brand collars only - it cannot be used in collars made by any other brand. This listing is for one battery.