HQRP Battery compatible with Dogtra 1800 Series 1800-NC 1802-NC 1803-NC 1804-NC Remote Controlled Dog Training Collar Receiver plus Coaster - Walmart.com
HQRP Battery Replacement for Dogtra 1600NCP Dog Training Collar Transmitter 884667879120 | eBay
Dogtra battery 1210NCP remote control
Dogtra Battery Packs BP37W (3.7V, 240mA) | On Sale | EntirelyPets
Amazon.com : HQRP Battery Compatible with Dogtra 3500-NCP Super-X, 3502-NCP Super-X, 2502-T&B Remote Controlled Dog Training Collar Receiver : Pet Training Collars : Pet Supplies