Thank you for the clarification.Yes, I used an XT60 connector to plug into the solar input of the Ecoflow. This then connected via a changeover switch to both the 12v ignition supply and the solar panel input.
I was still only getting 12-14v in from ignition live which equated to around 100w which really didn't charge it very much at all on my daily commute.
Could you read from the unit what the input Watts were? Because if your unit allows up to 15A (as stated for my Delta 2) then I would have expected more than 100W at 12-14v.