Which lasts longer, PetSafe or Interstate?

On paper Interstate claims 3-6 months against PetSafe's 1-3 months. Both are single-use lithium cells, so real life depends on how often the collar triggers and how cold it gets.

Will the Interstate battery fit my PetSafe collar?

It fits most PetSafe bark, training and in-ground fence collars that take the RFA-67 module, including the PIF-275 receiver. Check your collar's model number against the RFA-67 requirement before buying.

Is the PetSafe battery worth paying more for?

Only if it is cheaper per cell or you want the exact OEM seal for a fence receiver left outdoors. Compare the per-battery price at both stores before deciding.

Are these rechargeable?

No. Both are single-use lithium modules and should be replaced, not recharged.

How often will I need to replace them?

Expect roughly every 1-3 months on the PetSafe cell and up to 3-6 months on the Interstate claim. Collars that correct often drain faster.

Do both packs contain two batteries?

Yes. Both are 2-packs of the 6V RFA-67 lithium module.

Petsafe 6 Volt Lithium Battery, Model RFA-67D-11 2 pk vs Interstate Batteries RFA-67 Battery Lithium Pet Safe, 6V - Pack of 2

Both packs are 6V lithium RFA-67 replacement modules for PetSafe collars and receivers, so the real difference is price and claimed runtime. PetSafe rates its own cells at 1-3 months; Interstate claims 3-6 months, though that is a seller claim, not a spec from PetSafe. Buy whichever is cheaper per cell at the store you trust, and check the price history on this page before ordering.

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