Hitachi EB1830H 18 Volt NiMh 3.0 Ah Hydride Battery  (Discontinued by Manufacturer) This battery is 18-volt and 3-Amp Hour Nickel metalhydrate batteries are ideal for applications needing a small, light power source Compatible with the UC24YJ, UC24YFA, ET18DM, UC14YFA, UC18YG, UC12YE chargers Charges in 70 to 90-minutes Comes with a 1-year limited warranty 18v Battery Ni-MH 3.0Ah compatible with the UC24YJ, UC24YFA, ET18DM Chargers