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Pet Safe RFA-67D 6-Volt Battery, Economy, 6-Pack, 12 Batteries

Genuine Petsafe brand. Fits most Petsafe fence, bark and training collars, including the Petsafe wireless fence collar. $ 28.97

PetSafe 6-Volt Lithium Battery (2 Batteries per Pack)

RFA-67D lithium battery 2-pack is used for all Pet Safe recievers that require a 6-volt lithium battery module. $ 3.99