Dogtra 200 NCP Gold Battery - Replacement for Dogtra BP12RT Dog Training Collar Transmitter Battery (300mAh, 4.8V, NI-MH) Replacement Dogtra 200 NCP Gold Battery Replacement for Dogtra BP12RT Dog Training Collar Transmitter Batteries Lifetime Warranty Capacity: 300mAh, Upstart Battery Brand On Sale for a Limited Time!