This jump starter can jump-start gasoline engines up to 5.0 liters and diesel engines up to 2.0 liters. It features fast-charging USB-C and USB-A ports, and an LED flashlight with three modes. Designed with spark-proof technology and reverse polarity protection, it is water-resistant and weighs 2 lbs. The price drops from $99.99 to $29.99. Shipping is free for Prime members.