Congrats on the conversion...it should be done more, just a thought .... would a portable EV charger be the solution? just a quick google let me find Blink Mobile EV charging station...but maybe there are cheaper/smaller/lighter solutions....or solar panels on your roof?
The J1772 ports we have in the United States are basically just 110 or 220 volts with a fancy plug and an electronic handshake. I could bring an "EVSE" with me that can plug into a regular 110 or 220v electrical outlet, but finding an electrical outlet near where I want to park is probably more difficult than finding a J1772 charge port, unless I'm visiting someone's house.
The "charger" terminology is especially confusing, since technically there is a part called the charger that goes in the car -- it converts external AC power to DC at the voltage needed to charge the battery. The chargers normally installed in conversions aren't typically capable of charging quickly. The charger I'm looking at [1] maxes out at 3KW, which could charge a 27kwh battery in about 9 hours. If I spend the money to get a second charger to run in parallel, I could get that down to 4.5 hours.
Solar doesn't really work for long trips; the power you get is just too low. I'm in favor of solar panels being installed on EVs generally, as it would reduce the amount of power you draw when you charge, especially if you only drive a few miles a day on average. It just isn't a solution to the range problem unless you're willing to wait a long time to charge (like weeks) and/or manually deploy a giant solar array any time you stop like Mark Watney.
This conversion car I think just won't be a road trip car, and that's okay. Maybe eventually aftermarket batteries and chargers will improve to the point where I can plausibly install a 200-mile range battery with a half-hour 80% charge capability and keep the whole battery pack under four or five hundred pounds.
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