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How to charge 48V LiFePo4 battery correctly?

Dec. 2023

With the continuous development of technology, there are more and more types of batteries. Among them, 48V LiFePo4 battery is widely used in electric vehicles, solar energy storage systems, UPS and other fields due to its advantages of high energy density, long life and high safety. How to charge the 48V LiFePo4 battery correctly?

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1. Choose the right charger

First of all, it is very important to choose the right charger. Generally speaking, the output voltage of a 48V LiFePo4 battery charger should be around 54V and the current should be around 10A. If you use an inappropriate charger, it will not only affect the charging efficiency, but may also cause damage to the battery.

2. Check battery status before charging

Before charging, the status of the battery needs to be checked. If the battery voltage is too low, slow charging is required first, and then fast charging is performed after the battery voltage is raised to a certain level. In addition, you also need to check whether the battery connection is firm to avoid unstable charging due to poor connection.

3. Control charging current and charging time

During the charging process, the charging current and charging time need to be controlled. Generally speaking, the charging current should be controlled at about 1/3 of the battery capacity, and the charging time should not be too long to avoid overcharging. If the charging time is too long, the internal temperature of the battery will rise, which may affect the battery life.

4. Pay attention to safety during charging

During the charging process, you need to pay attention to safety. First of all, the charging environment must be kept well ventilated to avoid safety accidents caused by the accumulation of gas generated during the charging process. Secondly, avoid overheating of the charger to avoid damage to the charger or safety accidents caused by overheating. Finally, avoid poor contact between the charger and the battery to avoid accidents such as fires caused by poor contact.