PetSafe RFA-67 6-Volt Batteries - Economy 5-Pack - 10 batteries Go to amazon.com Related posts Top 13 best petsafe batteries 2022 FeatureEach Battery Measures 1.5 inch in DiameterFor PetSafe Fence, Bark and Training CollarsLithium Battery10 Pack of Batteries DescriptionGenuine PetSafe brand. Fits most PetSafe fence, bark and training collars, including the PetSafe wireless fence collar.