Hi Dave we are using Goal Zero 500 so far so good it has worked for us. We use for Ipads, phones, and MacBook as well as headlamps.I got it because it is handy with all of it's out puts and inputs. You can also replace the battery if need be. Much easier that wiring all of those things up, We got the cords for 12v and 100Watt solar panel. Because of Covid we have only been Camping about 4 times and we have not had to charge it on our outings. That's my 2cents.
Bill Witz  84 westy 1.8T