Battery charging interfaces include USB port, alligator clip, battery crimp terminal, XT connector, EC connector, SAE connector, MC4 connector, Anderson plug and so on. They can supply power to laptops, drones, camera lights, projectors, rice cookers, electric fans, water kettles, cars, and other equipment. They are suitable for outdoor camping, outdoor live streaming, outdoor construction, location photography, and home emergency power consumption scenarios. There are many types of charging methods for outdoor power supplies, mainly including solar to DC charging, AC to DC charging, and on-board DC charging.