This Battery Charger, Jump Starter, Compressor, Power Supply Inverter, Cell Phone Charger does it all & as an independent power supply source will not drain your current vehicle's battery & is the only car emergency tool you will ever need but the utilization of this professional grade electric emergency power pack doesn't stop there: with its Inverter Power Converter you can bring in a host of your household products to work in your car so the possibilities are virtually limitless. Pick it up today & stop worrying if your current car battery will make it through the winter or will I have to buy a new car battery which now sell in the $250 price range. Thank you. Other car part products available: Please view all pics. Prices are just $25 & up.