Quick Start of Dead BatteryThe portable lithium jump start power source can safely start a dead battery in seconds. 800A peak current can supply power to 12V vehicle (up to 4.5L gasoline engine or 2.8L diesel engine), suitable for cars, trucks, motorcycles , off-road vehicles, lawn mowers, boats, etc. Intelligent protection This portable starter battery is equipped with an intelligent protection system and an intelligent cable to prevent short- circuits, overheating, overvoltage, overload, overdischarge, excessive current, reverse polarity and sparking. An indicator light and audible alarm indicate correct operation and provide additional safety. VersatilityIt can be used as a car emergency jump starter, portable power source, battery booster and lamp LED pocket. It can charge smartphones, tablets or other USB devices. The LED can switch between three lighting modes, flashing and SOS. It is the perfect tool for daily use, travel, outdoor activities and emergency situations. Compact and powerfulSuper compact and lightweight design, easy to carry. The emergency jump starter is equipped with a digital LCD display, which can clearly see the usage status and remaining charge level, and choose the charging port and check charging and discharging. What you getportable power source, smart jump cable, USB-C charging cable and user manual.