Amazon.com: Dog Training Collar Battery Replacement for Dogtra 175 NCP - Transmitter and Receiver Battery Compatible with Dogtra BP12RT and BP20R : Pet Supplies
Amazon.com: Synergy Digital Dog Collar Battery, Compatible with Dogtra DG-BP74T2 Dog Collar, (Li-Pol, 7.4V, 500 mAh) Ultra High Capacity, Replacement for AE Energy AE602048P6H, AE602248P6H Battery : Health & Household