A holiday seldom means a break from all the technology - laptops, PDAs, MP3 players and the like - that helps run our everyday lives. It's a problem then, when your life-support system runs out of battery. We take a look at three options that can harness the sun's rays to charge up your gadgets. Be warned, however, being eco-friendly does not come cheap and contacting the supplier to confirm compatibility with your equipment is a must. pchayney@thenational.ae