This is a high-performance replacement digital battery for the Samsung EC-MV900F, guaranteed to meet or exceed the OEM specifications of your original. The digital battery is 1.72 x 1.42 x 0.2 inches with an output of 3.7 volts. The chemistry is LI-ION at 750mAH capacity. Manufactured by Empire Scientific, model number BLI-434. 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.