Here’s my writeup on the power station:
I still use it all the time and it’s fantastic. No wasted energy converting from DC to AC and back to DC. I can charge it while I drive off the wall outlet in my Tacoma’s truck bed. I haven’t tried charging with solar because I simply haven’t stayed in one place long enough to need to. If I was just using my fridge on it, it would probably last several days (depending on the outside temp). I charge my phone and tablet off it too. I also can unplug the fridge for a little bit to run my Joolca for a quick shower. I don’t have a diesel heater so I can’t speak to that. You could easily wall charge it off a generator. Overall an extremely solid power station for the price if you don’t need AC power. I highly recommend it.