HQRP® Replacement Battery; Battery Voltage: 7.2V; Capacity: 700mAh; Ni-Mh; 200 Days warranty! Compatible With: Tri-Tronics 1157900 1157900-C XLS Transmitters Flyway Special XLS, Upland Special XLS, Pro 100 XLS, Pro 200 XLS, Pro 500 XLS, Classic 70 XLS, Classic 70S. Please pay attention that the battery does not fit Trashbreaker XLS Transmitter. This high-quality replacement battery is designed to provide reliable power and long service life, ensuring your training equipment works when you need it most; Engineered for dependable performance, this battery allows your Tri-Tronics transmitter to maintain strong and consistent operation. Easy to install, it is a convenient solution for replacing old or weak batteries. Keep your dog training sessions effective and uninterrupted with stable energy you can trust;