I have a 100w briefcase solar panel I tried. I'll have to post a follow up vid but basically it turns out the EF delta 2 has a minimum required supply of power. My little panel must be right on the edge. Full sun and I got a slow charge, any clouds and it quit charging. My briefcase panel measured at 125w / 4.6amp open load. Now, the EF does state there must be a charge controller between the unit and the panel. I do have 4x 400w panels in storage which last I tested those they are 12amp each. The EF has a max of 15amp so they should be ok. More projects for someday where there is time :)
Great idea for back up power. Would be interesting to see if some Harbor Freight solar panels would extend the EcoFlow life.
I have a 100w briefcase solar panel I tried. I'll have to post a follow up vid but basically it turns out the EF delta 2 has a minimum required supply of power. My little panel must be right on the edge. Full sun and I got a slow charge, any clouds and it quit charging. My briefcase panel measured at 125w / 4.6amp open load.
Now, the EF does state there must be a charge controller between the unit and the panel. I do have 4x 400w panels in storage which last I tested those they are 12amp each. The EF has a max of 15amp so they should be ok. More projects for someday where there is time :)