Lenmar Replacement Battery for Cordless Phones using 3.6V 1200mAh Nickel-Metal Hydride Lenmar Replacement Battery NiMH, See Product Description for Compatible Models 3.6 Cell Voltage, 1200mAh Phone Battery 3 Cells, Unit Dimensions in Inches: 1.89 x 1.57 x .55 1 Year Warranty