500 Amp UltraSafe Lithium Jump Starter The GB20 is a portable lithium-ion battery jump starter pack that delivers 500-amps for jump starting a dead battery in seconds. It features a patented safety technology that provides spark-proof connections and reverse polarity protection making safe and easy for anyone to use. It's a powerful battery booster that doubles as a portable power source for recharging USB devices, like a smartphone, tablet and more. Designed for a car, boat, motorcycle, RV and more with gas engines up to 4 liters. Compact, yet powerful lithium jump starter rated at 500 amps 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 allows 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 4 liters such as ATVs, motorcycles, cars, lawn equipment, and more. New Accessory: Includes Precision Boost Battery Clamps designed to easily connect to any 12V lead-acid battery from powersports to trucks. WARNING: California’s Proposition 65 Data Sheet User Guide Technical Specifications. What's In The Box GB20 Lithium Battery Jump Starter Powersport Boost Battery Clamps USB Cable Microfiber Storage Bag Safety & Warranty Information Starting Current 500 Amps (Peak) Battery Types 12 Volt Lead-Acid Batteries Internal Battery 24 Watt-Hour Lithium-Ion USB Input 5 Volts 2.1 Amps Max USB Output 5 Volts 2.1 Amps Max Gas Engine Rating Up to 4.0 Liters Diesel Engine Rating Not Recommended LED Flashlight 100 Lumens Product Size Height: 3.16 Inches (80.3 mm)Width: 7.72 Inches (196.0 mm)Depth: 1.71 Inches (43.4 mm)Weight: 2.45 lbs (1.11 kg) IP Rating IP65 (w/ Ports Closed) Limited Warranty 1-Year Hassle-Free Warranty