Noco Gb40 Boost Jump Starter The Gb40 is a compact, yet powerful 1,000 Amp lithium-ion jump starter that delivers 7,000 Joules of starting power. Its patented safety technology features spark-proof technology and reverse polarity protection making it safe for anyone to use. Designed for use with gas engines up to 6 liters and diesel engines up to 3 liters and doubles as a portable power source for recharging smartphones, tablets and more. Features: Compact, yet powerful lithium jump starter rated at 1,000 Amps (7,000 Joules3S) - up to 20 jump starts on a single charge An ultra-safe and mistake-proof design with spark-proof technology and reverse polarity protection, which allow it to safely connect to any battery An ultra-bright 100 lumen LED flashlight with 7 light modes, including SOS and Emergency Strobe Recharge your personal devices on the go, like smartphones, tablets, e-watches and more - up to 4 smartphone recharges Designed for gas engines up to 6 Liters and diesel engines up to 3 Liters for cars, boats, lawn mowers and more