With over 6250-amps of starting power, it can jump start gasoline and diesel engines up to 45-liters It jump starts almost every type of vehicle and equipment, including semi-trucks (up to class 8), motorhomes, coaches, buses, mining, agricultural, construction, and vocational equipment - 6, 8, 12, and 16 cylinder - and more Simple, mistake-free design featuring spark-proof technology and reverse polarity protection, but with enhanced thermal efficiency and power management to provide better performance and longer battery life With two built-in 2.1A USB ports, you can power multiple devices at the same time, such as smartphones, tablets, action cameras, wireless headphones, wearables and more With over 266 watt-hours of lithium power, the GB500+ can provide endless hours of operation and recharge your devices multiple times before needing a recharge Charge directly from the vehicle's 12-volt auxiliary port or the XGC4 4-Amp Power Adapter to recharge it’s 266 watt-hours lithium-ion battery in 8.5 hours Equipped with an integrated voltmeter to help pinpoint battery issues The voltmeter doubles as a 60-second countdown timer, which shuts off GB500+ after 60 seconds to help preserve internal battery charge The GB500+ is equipped with a 2,200-Lumen LED flashlight with various brightness modes, SOS, and emergency strobe— handy to have as a roadside or road trip tool Battery Types 12 Volt & 24 Volt Lead-Acid Battery Systems Diesel Engine Rating Up to 45 L Safe On All Engine Sizes Dimensions 6.36" H x 12.24" W x 8.15" D Gas Engine Rating Up to 45 L Safe On All Engine Sizes Includes GB500+ Lithium Battery Jump Starter; Boost Max 24-Inch 2/0 AWG Connectors; 56-Watt XGC Power Adapter; 12-Volt Female Plug 12-Volt Male Plug; 12-Volt 2-Foot XGC Cable; Protective Carrying Case; User Guide & Warranty Information Internal Battery 266 Watt-Hour Lithium-Ion Operating Temperature -22°F to 122°F (-30°C to +50°C) Starting Current 6250 Amps (Peak) USB Output Dual 5 Volts, 2.1 Amps Max