With the development of science, robots are widely used in human life, mainly in the medical industry, military industry, education industry, production and life. Such as disinfection robots, educational robots, service robots, etc. Educational robots play an important role in children's enlightenment and learning programming. Disinfecting robots can replace humans in entering the susceptible area for operation, and play a vital role in preventing the spread of the virus, especially during a virus pandemic. Commonly used educational robot chargers are lithium battery 12.6V1A charger and lithium battery 12.6V2A charger. Commonly used disinfection robot chargers are 24V 5A 7A lithium battery charger, 24V 5A 7A lead-acid battery charger and 48V battery charger.