Perimeter Technologies Invisible Fence R21 & R51 Dog Collar Battery YEAR SUPPLY

Perimeter Technologies




3 volt lithium battery for the Invisible Fence brand collar.

Each battery will last as long or longer the real Invisible Fence Brand PowerCap batteries. Compatible with all Invisible Fence Brand R21, R51 and MicroLite electronic dog fence receiver collars. The battery design was approved by the chief engineer at the Invisible Fence Company and are manufactured in a state of the art facility in Pennsylvania under his supervision.


  • Includes 3 batteries which will last a year under normal usage. 

We Are Authorized

Freedom Dog Fence is an authorized Perimeter Technologies online retailer and we ensure that your warranty is 100% valid.

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