New Dog Collar Battery 7.4V Replaces Dogra 2500T 2500B 2502T 2502B 3500T 3500B 3502T 3502B DC-31 BP74T Transmitters Voltage: 7.4, Amperage: 800mAh, Chemistry: Li-Po Width: 1.170, Height: 1.930 Exell Battery Dog Collar Batteries