J102 Emergency Starting Power Supply Specifications: J102 Peak Current: 3,000a Battery Capacity: 10,400 mAh Suitable for: Li-ion battery emergency starting power supply (for 12V vehicles) for max 8.5L petrol vehicles + max 7.5L 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: *J102 peak current can reach 3,000A). .