2x Pack - Dogtra 300M Battery - Replacement for Dogtra BP12RT Dog Training Collar Transmitter Battery (300mAh, 4.8V, NI-MH) Replacement Dogtra 300M Battery Replacement for Dogtra BP12RT Dog Training Collar Transmitter Batteries Quantity: 2, Lifetime Warranty Capacity: 300mAh, Upstart Battery Brand On Sale for a Limited Time!