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Hi, The display shows only the battery and the right black arrow! Although the panel is also linked, on the load output only the wires. The USB ports deliver, they are working. Shouldn't appear all on the screen?

Hi, I'm a newbie and I want to direct connect a 120w, 5a solar panel to 5v. 3a usb to charge the devices during daytime. First attemp was with a 12-24v controller but it get "fried" in the end (don't know why, because I supposed that the 2 usb outputs are also regulators, but seems not)...