HQRP Battery compatible with Tri-tronics Pro 100 XL, Pro 100 XLS, Pro 200 XL, Pro 200 XLS Remote Controlled Dog Training Collar Receiver plus Coaster HQRP&reg; Rechargeable Battery plus HQRP&reg; Coaster; Battery Voltage: 3.6V; Capacity: 800 mAh; Ni-Mh; Compatible with Original Battery; 200 Days warranty!