80W solar panel charging voltage is 28v
240KW/400KW industrial rooftop - commercial rooftop - home rooftop, solar power generation system.
afaik you dont need ny charge controller bc the 521 has battery management system and the display shows up input wattage from your power source. you can go for a 80w solar panel and an 8mm DC connector cable and youre fine. you cannot expect 80w output from the panel under realistic conditions. just keep in mind to buy a solar panel with correct voltage (11-28V) and …