Hitachi 329370 10-Volt 1.5-Amp Hour BCL1015 Lithium Ion Battery (Discontinued by manufacturer) This battery is 10-volt and 1.5-Amp Hour Lithium-Ion batteries have the best power to weight ratio Has three times longer battery life and half the weight of Nickle Cadmium or Nickle Metal Hydride Charges in 50-minutes Comes with a 2-year limited warranty This battery is 10-Volt and 1.5-Amp Hour Lithium Ion battery Has three times longer battery life and half the weight of Nickle Cadmium or Nickle Metal Hydride Maintains a steady level of power throughout charge Comes with a 30-day limited warranty