18 Amp Hour Nickel Metal Hydride Battery Pack Voltage: 13.2 VDC Capacity: 18 AH Dimensions: 3.75" D x 13.25" L / 9.5cm x 33.7cm Buoyancy: -3 lbs / -1.4kg Material: Acrylic Burn Time (with HID-10MR): 17 hours
31.2Amp Hour Lithium Ion Battery Pack and charger Voltage: 11.1 VDC Capacity: 31.2 AH Dimensions: 3.75" D x 13.25" L / 9.5cm x 33.7cm Buoyancy: -3 lbs / -1.4kg Material: Acrylic Burn Time (with HID-10MR): 24 hours
12 VDC 4.5 amp hour NiMH battery
Lithium Ion battery pack 11.1VDC 5AH with internal protection circuit for temperature, overcharge, overdischarge and short circuit.