Hikermor... AFLM recommended a Fujicell SCH808F controlled charger and it works well with either 12vdc (from my GZ 7watt panel via the cigarette receptacle) 12vdc from a cigarette plug, 120vac from the wall, and 5vdc USB... don't know if they are available any longer... I got mine thru Amazon/UK IIRC... you might look at similar chargers... if you have not already got your Goal Zero kit, be sure that you get the newer Guide 10 Plus pack... my older non plus will not charge my older phone... there is an adapter pack if you get Goal Zero AAA cells that work with the Guide 10 pack so you can charge the AAAs in the AA charge well... or you can make a AAA adapter with a couple of coils of 3/8 wire
the additional charger gives you multiple options

