This is a high-performance replacement two-way battery for the Motorola HNN9018, guaranteed to meet or exceed the OEM specifications of your original. The two-way battery is 3.39 x 2.01 x 0.69 inches with an output of 7.5 volts. The chemistry is Nicd at 1800mAH capacity. Manufactured by Empire Scientific, model number EPP-9018. 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.