It depends on your solar panel interface. Our energy storage power supply end is a 5.5×2.1mm charging port, and the other end of the solar panel connection cable also needs 5521 to use. If: the buyer’s solar panel interface is MC4, then you need a 5521 to MC4 adapter cable that can charge our energy storage power supply. It is recommended to use a solar panel with a maximum charging capacity of 120W (7A current).
By vevor