Anonymous3 years ago000Do I necessarily need this cable if I operate an Ecoflow solar panel with the Delta Max? Do I need 2 pieces if I have 2x the 220W panel?Show in original language (German)Anonymous3 years ago • purchased this product+110purchased this productNo, you don't need it. I ordered the cable to tinker with so that I don't have to cut up the original. I find compatibility between different products problematic.Show in original language (German)Comment