Supercapacitor Emergency Starter Specifications: No internal batteries. Output Voltage: 12V DC. Peak Current: 3000 Amps. Lead-acid battery charging mode: Charging current 2000mA. Compliant with international standards such as GB/T 35590-2017, UL 2743, CE EN 55032/35, ROHS 2011/65/EU. Price 450 including Redbox shipping