The Milwaukee 3841-20 M18 HOTSHOT Jump Starter is a high-capacity, portable jump starter designed for starting 3.0 liter diesel engines. With a peak amp capacity of 2000 amps and M18 VOLT voltage, this jump starter features a retractable handle, digital readout, and spark-proof design for safety. The unit includes clamps, LED light, reverse polarity protection, and overheat protection, making it a reliable tool for automotive maintenance. Additionally, it offers the convenience of a phone charger and USB charger for added versatility.