are there any campers out there that have any experience with solar power banks (of the affordable variety). my wife and daughter are heading out for a camping trip soon and their gonna need more charge then our little travel bank can offer and I was looking at solar panels/power banks. i admit i'm a little at sea. anyone have a recommendation for something that will keep them in juice for a 4 or 5 day trip? devices to be upkept include, my wife's phone, a portable microscope that uses wifi to send pictures to said phone, a few usb charged lights and similar other things.
I am NOT a camper by any means so I'm not really sure exactly what to look for. our budget is not huge (hopefully $60us or under, but if it will last a long time we can go a little over that).