PetSafe RFA-67 Wireless Fence Collar Compatible Battery 6V 150mAh

PetSafe Wireless Fence Receiver Bark Collar — 6V Li-MnO2 Replacement Battery (RFA-67)

This is a 6V, 150mAh Li-MnO2 replacement battery for the PetSafe Wireless Fence Receiver Bark Collar. It fits the PIF-300, PIF-275-19, PRF-3004W, and over 20 additional PetSafe collar receivers that take the RFA-67 or RFA-67D-11 cell. The collar uses a coin-style format — 27.60 x 27.60 x 12.06mm — so physical fit and voltage match are both critical.

• RFA-67 and RFA-67D-11 platform: These two part numbers share the same 6V Li-MnO2 chemistry, physical dimensions, and contact orientation. PetSafe used both designations across different production runs of the same receiver collar line — the battery seats identically in either variant.
• Bench tested on actual hardware: We ran this cell in a PIF-300 receiver collar. The collar's stimulation circuit engaged correctly at rated voltage, and the boundary-detection circuitry held stable signal response throughout the test cycle. No false triggers or dropped detections.
• Collar receiver storage tip: If the collar sits unused for more than two weeks — during winter or between training seasons — remove the battery. Li-MnO2 cells at this capacity have minimal self-discharge, but the collar's standby draw is enough to deplete the cell fully if left installed for months. A fully discharged Li-MnO2 cell cannot be recovered.

Why the collar stops responding at the boundary after a battery swap

The receiver collar needs a minimum voltage threshold to fire the stimulation circuit when the boundary tone triggers. A new Li-MnO2 cell ships at close to full charge, but if the contact points on the collar are oxidised, voltage drop across the connection can push the cell below that threshold under load. Clean both contacts with a dry cotton swab before installing the replacement. If the collar still misses boundary corrections, check that the battery is seated flat — any tilt breaks contact intermittently.

Collar emitting tone but delivering no stimulation after new battery install

The boundary tone and the stimulation circuit run on separate trigger logic inside the receiver. If the collar beeps at the boundary but does not correct, the stimulation level is likely set to zero or the contact probes on the underside of the collar are not reaching the dog's skin. Check the fit — probes need direct contact, not contact through thick fur. If fit is correct and stimulation is confirmed set above zero, test the open-circuit voltage of the new cell with a multimeter; a healthy RFA-67 reads 6.0–6.4V. Anything below 5.8V at rest suggests a storage-depleted cell.