This is a high-performance replacement digital battery for the Fuji X-PRO1, guaranteed to meet or exceed the OEM specifications of your original. The digital battery is 1.85 x 1.41 x 0.61 inches with an output of 7.2 volts. The chemistry is LI-ION at 1100mAH capacity. Manufactured by Empire Scientific, model number BLI-425. 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.