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Let's talk about our views on this charger, especially the technical understanding of the manufacturer's personnel, which will promote and improve the development of electric vehicle technology.
It adopts 4-way constant voltage current limiting charging controlled respectively, and 5 connected battery boxes can be used.
If each circuit is controlled by a switch, the current through the switch needs to be large, for example, 18a, and a 50A switch is required to meet such a large current. It's not easy to work. It's better to come to 4-way constant voltage current limiting charging. In addition, the first teacher Ni of Hebei University of science and technology adopted the method of diversion, which is also feasible.
The method of adding a power management system can also be used for reference to charge the batteries separately. After the charger is connected to the management system, the 48V charger voltage is divided into four 12V charging circuits by the electric housekeeper, and the four circuits are detected and compared. The voltage rise is sent to the battery voltage in the form of negative pulse discharge, so that the four batteries can be fully charged at the same time.
When the charger is disconnected and unplugged, the manager and the battery pack do not form a loop, which fundamentally eliminates the possibility of increasing self discharge due to the manager, and can also be a new charging mode.
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