Six functions: 1. Start the car in an emergency providing the necessary 200 A to 400 A to start the car quickly. 2. Emergency lighting, SOS signal light; one-button system quickly starts signal light for help. 3. Charging function for digital products such as computers, tablets, mobile phones, cameras and other digital products. 4. Efficient conversion charge achieves three hours fast charge. 5. Overcharge protection using advanced technology, fast and constant voltage charge. 6. Balanced circuit, intelligent converter technology, stable safety circuit protection and perfection charging circuit is available.