This is a high-performance replacement two-way battery for the Midland SP430, guaranteed to meet or exceed the OEM specifications of your original. The two-way battery is 4.78 x 2.31 x 0.71 inches with an output of 7.5 volts. The chemistry is NiMH at 1300mAH capacity. Manufactured by Empire Scientific, model number BNH-BP0513. 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.