Multi-functional 12000mAh Emergency Start Power Supply Mobile Charging Portable AUXITO J301 Emergency Starting Power Supply Specifications: J301 Peak Current: 4,000A Battery Capacity: 12,000mAh Suitable for: Li-ion battery emergency starting power supply (for 12V vehicles) for max 10.5L petrol vehicles + max 10L diesel vehicles with multi-mode oversized panel light (tent light) and smart clip. Functions: Multi-functional Emergency Start Power Supply: It can be used as a rechargeable battery or for lighting, and has the function of magnetic suction and hook. High-performance Emergency Start: .