Ten Pack Dog Fence Batteries For Invisible Fence R21 & Microlite Receiver Collars By Perimeter Technologies : Pet Supplies

Each battery will last as long or longer the real Invisible Fence PowerCap batteries. Compatible with all Invisible Fence 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.