Schumacher Instant Power with 18-Ah Battery with Air Compressor and Light: * Now, get all the power you need where you need it along with the added convenience of a hi-pressure air compressor * The 18 amp hour battery will handle most anything you throw at it and the compressor will never leave you flat * Jump starter on/off switch completely shuts off internal battery at clamps for added safety, eliminating accidental shorting of clamps and battery drain * Convenient, built-in charger transformer for automatic charging of internal battery * Just connect an extension cord to the plug in the back to recharge * Easy to read battery status LEDs tell when internal battery is at full power, 75 percent charged or 50 percent or less and needs charging * An audible low-battery alarm beeps when battery is at less than 50 percent charge * Built-in charger for automatic charging of internal battery * #4 gauge, 28" cable stays flexible in the coldest of temperatures * Heavy-duty, copper jaw, 300 amp, metal clamps for solid connections to top and side post batteries * Reverse hookup protection safeguards car battery, computer and Instant Power from damage if the cables are connected to the wrong terminals * Audible alarm warning sounds when clamps are reversed or touched together * Charging and charged light indicates charging of internal battery * Storage mounts for clamps keep clamps safe for longer life * Spotlight has an adjustable, high-intensity beam