Powerfilm, rollable solar powered battery charger
You roll it up. Not just a little, like other somewhat flexible things, but really rolly. It’s waterproof. You can put it anywhere. It feeds on sun. It charges your gadgets.
It’s from company Iowa Thin Film and it’s mighty expensive, at $130 for the 5 watt and $400 for the 20 watt. There are many places you can buy and here’s one. Check out the website here.
