A. Quick Overview of Emergency Start for a Dead Battery Portable lithium emergency starting power can safely start a dead battery within seconds. A peak current of 800A can power 12V vehicles (suitable for gasoline engines up to 4.5L or diesel engines up to 2.8L), and it is applicable to cars, trucks, motorcycles, off - road vehicles, lawn mowers, boats, etc. B. Intelligent Protection This portable starting battery is equipped with an intelligent protection system and intelligent cables to prevent short circuits, overheating, overvoltage, overloading, over - discharge, over - current, reverse polarity, and spark generation. Indicators and audible alarms can indicate whether the operation is correct and provide additional safety. C. Multi - functional Use It can be used as a car emergency starter, portable power source, battery booster, and LED pocket light. It can charge smartphones, tablets, or other USB devices. The LED light can switch between three lighting modes, a flashing mode, and an SOS mode. It is a useful tool for daily use, travel, outdoor activities, and emergencies. D. Compact and Powerful It features an ultra - compact and lightweight design for easy carrying. The emergency starter is equipped with a digital LCD screen, which allows you to clearly view the usage status and remaining power, select the charging port, and check the charging and discharging conditions. E. List of Accessories You will receive a portable power source, intelligent emergency starting cables, a USB - C charging cable, and a user manual.