Samsung BEX235HSRB/STD Battery by Amstrom is designed for use with Samsunng SCH-a670 cell phone model. 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 900mAh Capacity • Warranty: 4 Years