Pet Stop, Perimeter, Dog Guard, And Extreme Fence

6 Volt Premium Lithium Battery for Pet Stop, Perimeter, Dog Guard, and Extreme Fence Receiver Collar. Condition is "New in Retail Package". Shipped with USPS Ground Advantage.
This 2CR1-3N battery is compatible with pet collars of PetStop, DogGuard, Contain-a-Pet, Perimeter Technologies & eXtreme invisible dog fence systems for Ultra Elite, Ultra Elite 2, Ultra Tuff, eXtreme Active & Timid, DG-3000, DG-5000, DG-9000, PCC-100, PCC-200, PTPIR-003, PTPFS-003, PTPRB-003 receivers and more!

These batteries are not only suitable for dog collar receivers, but also function in the same way as the following models: 4LR44, 4SR44, PX28A, A544, 28PXA, 476A, 4G13, GP476, K28, V28,. L1325, 1414A, V4034PX, PX28L, K28L, L544, L544BP, V28PXL, 2CR1/3N, CR28L, 1406LC

This battery comes conveniently packaged as one count blister pack card to make storing (and finding) them later should you choose to buy more than one for volume pricing. 
Please store in a cool, dry location. Make sure that the battery is installed with the Positive + side facing outwards towards the metal battery cap, and the negative - side facing into the collar and touching the spring.