The Snap-on 12V Engine Starter Plus with AGM, No. EEJP700, is a rotary switch engine starter designed to make jobs easier for any automotive technician by connecting and starting 12V vehicles with no sequencing required. For added safety, it can also detect reverse polarity. The case features convenient magnetic holders for clamps that have crank assist of 550A from a high output sealed 33 Ah AGM internal battery. It also features a USB charging port, an easy-to-use interface, field replaceable battery, and long reach 65" high flow 2-gauge welding wire cables.