Audiovox BTE8610B battery by Amstron is designed for use with Audivox CDM8610, CDM8615, and CDM-8910 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 850mAh Capacity • Warranty: 4 Years