Battery - AGM-VRLA Short Circuit Current: 1800A Nominal voltage: 28V DC Float Voltage: 32VDC Boost Voltage: 34VDC Amp/hour capacity: 18 Ah @ 10 hr rate (27°C) Operating temp: -40°C to +60°C Recombination Efficiency: > 98% Self Discharge: less than 1% per week Reverse Polarity Protection: Enabled Over Voltage Protection: Enabled Shelf life without re-charge: Up to 6 months Deep discharge Capability Powder Coated Case with lie-flat handle Voltmeter: Solid State LED. Battery State of Charge - Indicator. Aircraft cable 2m (6ft/50SQ/MM/ISI)-with heavy-duty rubber NATO connector. Charger 1.8 A 2-stage internal charger-Input 90–270V AC single phase. Dimensions: 28 cm x 45cm x 9.5cm (HxLxW) Weight: 18.5 Kgs