Here is a cooler that doubles as a solar charger for your smartphone or tablet. The IceCove Norah Cooler has a tough rotomolded thermoplastic construction. It comes with 2-built-in bottle openers and 4 on-top bottle holders. It has a foldable handle and 2 rear wheels for easy maneuvering.
This cooler has a solar panel to generate power for your USB devices (5V 1A rating). It has an internal divider and a drain plug. You can find out more here.