The product you are looking for is called the PetSafe RFA-67D-11 6 Volt Lithium Battery which is sold as a two-pack, and is original manufacturer’s equipment.
We know that’s quite a mouthful, so we sell it as a PetSafe Wireless Fence Battery!
PetSafe Wireless Fence Batteries are available with Free Shipping, and an Express Shipping option from the Muttfence.com Retail Store
