ReVIVE Solar ReStore XL 4000mAh Solar Charger Power Bank & USB Rechargeable External Battery Travel Pack w/ Universal USB Charging Port & High-Efficiency Solar Panel for MP3 Media Players, Smartphones , E-readers , iPad and More!
Easy to use and works great.  Keeps my phone fully charged while at the beach or in the car.  Makes a great gift for the person who has everything!