Amazon.com: Dog Training Collar Transmitter Battery Replacement for Dogtra BP12RT - Dogtra 200 NCP Gold Battery (300mAh, 4.8V, NI-MH) : Pet Supplies
Amazon.com: 2X Pack - Dog Training Collar Battery Replacement for Dogtra BP12RT and BP20R - Dogtra 200 NCP Gold Transmitter and Receiver Battery : Pet Supplies
Kastar 2-Pack Battery Replacement for Dogtra Receiver 200NCP, Receiver 202NCP, Receiver 280NCP, Receiver 282NCP, Receiver 300M, Receiver 302M, Element 300M Dog Training Collar, YS-200 Collar - Walmart.com
Amazon.com: ZZcell® Battery Replacement for Dogtra Receiver BP20R, 200NCP, 202NCP, 280NCP, 282NCP, 300M, 302M, 7000M, 7002M, EF-3000 Old, YS-200 Remote Controlled Dog Training Collar : Pet Supplies
Dogtra 200NCP Gold Series Battery for Dog Collar Transmitter (TX)