This is a high-performance replacement cordless battery for the Cisco CP-7925G-EX-K9, guaranteed to meet or exceed the OEM specifications of your original. The cordless battery is 2.52 x 1.53 x 0.246 inches with an output of 3.7 volts. The chemistry is LI-ION at 1400mAH capacity. Manufactured by Empire Scientific, model number CPL-546. 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.