DFR0580 solar power manager; how to select a solar panel
I have purchased DFR0580 which lists in the specifications
Solar input voltage 15V ~ 25V
Maximum charge current (solar) 4A
12 V lead acid battery
Features: For 18V solar panels within 100 W;
I would like the largest solar panel available (if reasonable);
The DFR0580 is designed for 18V solar panels so I would like to buy an 18V solar panel;
The most common solar panel of that kind for sale is 100 W; using (current = wattage / voltage)
(100 W / 18 V = 5.56 A) which is larger than the 4 A maximum solar charge current;
Is it safe and possible that you can hook up a 100W 18V solar panel to the DFR0580 please?
Perhaps the DFR0580 would only draw 4A even though the solar panel is capable of delivering more.
Otherwise at 18 V and 4 A is the maximum solar panel wattage you can buy
(18 V * 4 A = 72 Watts) ???? It is hard to find a panel of those specs.
You might find one rated for 18V 50 W or 18V 60 W.