A portable power unit that has a maintenance-free, 18 A hour battery with a 12 VDC power source and #6 ga, 28 in cable that stays flexible in cold temperatures. It includes a convenient built-in charger transformer for automatic charging of the internal battery. Connect an extension cord to plug in the back to recharge the charging LED will glow. The LED indicator helps to easily monitor the charging of the internal battery telling you when it is at full power, 75% charged or 50% or less. This portable unit is ideal for an auto or boat needs and is durable, rust- and corrosion-proof, with a polypropylene case that resists fuels and solvents. 12 V outlet. 300 CCA, 950 peak amps.