Replacement Battery for Cable & Wireless CWD 5900, CWD 4800, and CWR 2200 Cordless Phones. This Ni-MH battery provides 3.6V and 700mAh / 2.52Wh capacity, offering a safe, long-lasting power source. Dimensions are approximately 45.90mm x 31.20mm x 10.70mm (1.81 in x 1.23 in x 0.42 in). Restore full talk time to your device with this perfect fit!