POWERFUL PERFORMANCE: This portable car emergency starter has enough power (2000A peak current) to emergency start most 12-volt vehicles on the road. The portable emergency start battery pack can easily start your car, motorcycle, truck, SUV, tractor, boat and more. The battery emergency starter is compatible with 12V batteries up to 7.5L petrol and 6.0L diesel engines. 3 LED Modes & Safety Hammer: The car battery charger emergency starter is also equipped with a 350 lumen LED flashlight, it can work in 3 modes, torch, flash and SOS. The car emergency starter with compass is perfect for camping, traveling, adventures, emergencies, etc., with a waterproof, compact, and lightweight design. The bottom is equipped with a hard and sharp stainless steel safety hammer, which can easily break the car window in an emergency. Large-capacity emergency power supply: The emergency start battery pack has a 28000mAH capacity battery, with a new generation of dual USB 5V/3A, 9V/2A, 15V/1.5A output, compatible with almost all USB charging devices, including mobile phones and tablets, it can quickly charge Charge your device. Multiple safety protections: High-quality batteries are used to make the starter last longer. The emergency power supply has UL2743 standard certification and intelligent clamp safety protection technology, namely high temperature, reverse connection, low temperature, overload, low voltage, overcharge, overdischarge, short circuit. PS, please make sure that the negative poles of the positive and negative clips and the negative poles of the car battery are not reversed. (Red is positive, black is negative)