Kwik Start vehicles anywhere without AC power. On-board starter battery gives more cranking power than any fast charger, up to 850 amps cold cranking power. Will accommodate a user supplied group 24 battery (L 10.3" X W 6.8" X H 8.9"). Smart choice for car dealers, airports, industrial plants and shopping centers to assist customers and employees where there is no electrical power. Plugs into any AC outlet for rapid automatic recharging. Solid state circuitry monitors battery condition and maintains maximum state of charge. Patented "Stop/Go" light warns operator before making a reverse connection. Designed for easy and quick handling, safety, and protection from weather. Fully automatic, 10-amp charger recharges starter battery or any on-board 12-volt battery. Will not overcharge. Battery not supplied, recommend minimum 500 CCA.