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Dogtra BP-37F Replacement Battery for IQ & eFence EF-3000 Gold Receiver
This is the BP-37F replacement rechargeable battery for the New Style of Dogtra eFence EF-3000 Gold Receiver Collar.
How do I tell the difference?
For old styles, the dial knob will be on the wall mount transmitter. You would need BP20R
if you have this model.
For new styles, the dial knob will be on each receiver individually.