This is a high-performance replacement digital battery for the Panasonic DMC-SZ3, guaranteed to meet or exceed the OEM specifications of your original. The digital battery is 1.62 x 1.36 x 0.21 inches with an output of 3.6 volts. The chemistry is LI-ION at 600mAH capacity. Manufactured by Empire Scientific, model number BLI-444. 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.