Audiovox BTR-8960 Battery by Amstron is designed for use with Audiovox CDM 8630 and UTStarcom Coupe cell phone models. Amstron cell phone batteries are precision-engineered and rigorously tested for voltage, capacity, compatibility, and safety to exceed original equipment manufacturer specifications. • Chemistry: Li-Ion • Ratings 3.7 Volts 700mAh Capacity • Warranty: 4 Years