This is a high-performance replacement two-way battery for the Icom BP243, guaranteed to meet or exceed the OEM specifications of your original. The two-way battery is 2.1 x 1.4 x 0.48 inches with an output of 3.7 volts. The chemistry is LI-ION at 1800mAH capacity. Manufactured by Empire Scientific, model number BLI-BP243. 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.