Features and Benefits: The highest performance fleet charger on the market comes with our best manufacturer s boost rating of 600 AMP 400 cold crank amps Charges 6 12 18 and 24 volt batteries, Heavy-duty transformer patented Sub-Sil multidiode rectifiers longer AC cord and DC leads are standard features for higher performance, UL listed for indoor and outdoor use SAFE IN ANY WEATHER, SKU: DOBA4804