This is a high-performance replacement cellular battery for the Motorola SNN5910B, guaranteed to meet or exceed the OEM specifications of your original. The cellular battery is 3.66 x 2.23 x 0.175 inches with an output of 3.8 volts. The chemistry is LI-ION at 3000mAH capacity. Manufactured by Empire Scientific, model number BLP-1202-3. We offer a 1 Year Warranty with purchase. See this product elsewhere at a lower price? Call or email us; we have a Price Match Guarantee.