15.6 Amp Hour Lithium Ion Battery Pack with Acrylic canister and charger Voltage: 11.1 VDC Capacity: 15.6 AH Dimensions: 3.75" D x 7.5" L / 9.52cm x 19.1cm Buoyancy: -2 lbs / -.9kg Material: Acrylic Burn Time (with HID-10MR): 12 hours