1、Has the advantages of wide adaptability, reliable performance, simple structure, convenient installation, safety and reliability 2、With wide voltage adaption range, low power consumption, light weight, easy installation, automatic operation when connected to the power supply, no need for debugging 3、With short circuit protection, reverse connection protection, over current protection, over voltage protection, you can use the automatic battery charger with confidence 4、Can be automatically powered off when it is full, and can be charged automatically when there is no power, which can well meet your needs 5、Suitable for continuous and long term supplementary power of automatic generator sets, and long term supplementary power of general batteries