Feature:1. 4200Ah High Capacity: 12V 24V car jump starter power supply, built in rechargeable lithium battery, with a large capacity of 4200Ah, ensuring long term and continuous use.2. Charging Ports: Equipped with 5V 2A USB output, capable of charging mobile phones, Type C for laptop charging, compatible with various mobile phones, tablets, etc.3. Multiple Functions: This portable power supply features cordless design, LED lamp lighting, long endurance, large screen digital display, and other function, with strong practicality.4. Circuit Protection: The emergency power supply has short circuit, overload and overvoltage protection to ensure safe operation, 210230V input voltage for a wide range of use.5. Portable Handle: The car starter power supply is equipped with a portable handle, which is convenient for outdoor use, suitable for various power supply and emergency scenarios.Specification:Item Type: Car Starter Power SupplyModel: H23-8ABattery Type: Rechargeable Lithium Battery (built in)Capacity: 4200AhInput Voltage: 210-230VOutput Jump Starter: 12V 24VInstantaneous Current: 3000AStarting Current: 300A-1200AUSB Output: 5V 2ACharging Method: 5V 2ACycle Life: 3000 TimesOperating Temperature: -50-80.Package List:1 x Portable Power Supply2 x Crocodile Clips