The replacement battery for the Duracell DR35S, is designed for use in Eddy Currents • Volts: 10.8V • Capacity: 4000mAh Capacity • Chemistry: Nickel Metal Hydride • Dimensions: 8.4'' x 2.0'' x 0.68'' • Notes: Smart battery. Hard plastic casing with 5 slit-type contacts on end • 100% original manufacturer compatible • Guaranteed to meet or exceed original specifications • Highest quality Japanese battery cells • Replaces Duracell DR-35S • Full 1 year warranty