12.5-15A is best. When a 48-volt lithium battery is charged with a corresponding charger, the charging current of the charger should be lower than the rated current of the 48-volt lithium battery to charge the lithium battery normally. The optimal value is between 12.5 A and 15. R. , so a 48 volt lithium battery requires a charger with a charging current between 12.5 and 15 A.
C' is possible, but using a 2A charging device is relatively slow. You can use a 3A or 3.5 amp. The charger is a charging device that uses high frequency power supply technology and advanced intelligent dynamic adjustment charging technology. Chargers (chargers) are divided according to the operating frequency of the designed circuit and can be divided into industrial frequency machines and high frequency machines. The industrial frequency machine is designed on thebased on traditional analog circuit principles. The internal power components (such as transformers, inductors, capacitors, etc.) of the machine are relatively large. Generally, there is less noise when operating with a heavy load. , this model works in difficult conditions. It has strong resistance to power grid environmental conditions, and its reliability and stability are better than those of high-frequency machines.