Do not do this unless you want magic black smoke

Summary

ECOHOLICS Solar Panels + Cold = A Potential Problem Photo Credit: Kevin L @ EcoFlow DELTA Facebook Group Do Not Do This...Unless You Want Magic Black Smoke You purchased a new Delta Pro and looked up the specifications - Delta Pro can take up to 1600w/150v/15a of solar input. Then you buy four EcoFlow 400w Rigid solar panels to plug them in series. You check the math 37.1v VoC &times 4 panels = 148.4v ... just under the 150v Delta Pro solar input limit. The new solar array is right at the watt limit, just under the volt limit, and a little under the amp limit. You think you are good to go, right? Wrong!!! This will likely create black magic smoke from your solar generator on the first cold and sunny day. This is because solar panel voltages increase as temperatures drop. We see many complaints from newbee EcoFlow customers who are all excited with their new toy, they proceed destroy their MPPT controller, then complain bitterly on social media about EcoFlow's customer support and voided warranty policy. Plugging in four 400w solar panels in series is similar to filling your gasoline powered car with diesel and wondering why the car manufacturer isn't replacing your new car. The Rules When Sizing Solar Arrays Stay below the maximum voltage specs of the solar generator Stay way below the maximum voltage specs when it gets cold (how far below will be discussed later) You can exceed the amperage specs In series, volts add In parallel, amps add With mixed solar panels, the lowest amps in series prevails With mixed solar panels, lowest volts in parallel strands prevails We cannot stress #1 and #2 enough so it is worth repeating - do not exceed the volts In order to determine what your maximum VoC of an array can be, use one of the conservative estimate tables below or you can compute the temperature coefficients precisely if you have the solar panel specs. Examples Example 1 Live in GeorgiaOwn a Delta ProUsing EcoFlow 400w portable solar panels You might choose 0°C or 32°...