Great reader suggestion, it’s called the Solio Hybrid 1000 and comes with a built-in rugged carabiner and cable. It has a Lithum Ion battery that functions in the following ways:

Universal Charger – Power virtually all your electronic devices. Works out of the box with most common mobile phones, MP3 players, and GPS units - simply change the adaptor tip.

Stores Power - Charge your devices anytime, day or night. Internal rechargeable battery stores power for up to one year. (A full Solio H1000 will charge a typical mobile phone once or give 10 hours of MP3 music - just 1 hour of sunshine = 15 minutes talk time or 40 minutes of MP3 music).*

Hybrid Charger - Charge anywhere on Earth. Plug into the Sun and charge Solio through its solar panel, it’s free and green! Or use the included tip to charge from the USB port of any computer.

At first, I scoffed at the price point, but in looking at the specifics, I wouldn’t mind putting down that kind-of money for a solar powered device that could charge all my gadgets on the go.

Per another reader suggestion, here’s a great solar charger by Feastronics. It doubles as a case and battery charger. I love multifunctional gadgets. The charger doubles your battery life and you can use it to charge any USB device. Oh- and let’s not forget that it’s oh so environmentally friendly ;-)

Great suggestion, Thanks Dasha!