Dogtra 202 NCP Gold Transmitter and Receiver Battery - Replacement for Dogtra BP12RT and BP20R Dog Training Collar Battery Replacement Dogtra 202 NCP Gold Transmitter and Receiver Battery Replacement for Dogtra BP12RT and BP20R Dog Training Collar Batteries Lifetime Warranty Capacity: BP12RT (300mAh), BP20R (210mAh), Upstart Battery Brand On Sale for a Limited Time!