Fast charging speed and long cycle time, the usage frequency can reach 1~500000 times. High current discharge capability, high energy conversion efficiency, and minimal loss. Large power density, up to 300W/KG~5000W/KG, equivalent to 5-10 times that of a battery. The circuit is simple and does not require a charging circuit like a rechargeable battery, making it convenient for long-term use. Supercapacitors can be made into supercapacitor modules, suitable for high-capacity needs.