“Warning, low battery. Err… Why did I forget to charge my mobile phone yesterday night?” Luckily, I have Monaco Mobile Phone Solar Charger with me. It is a solar battery charger. With it, you can charge your mobile phone like Samsung Galaxy S, Apple iPhone 4 or other portable devices like Apple iPad and iPod which don’t have replaceable battery. A nice backup battery for them. Just plug in the USB cable and connect to your phone. Your phone will be come alive again by getting power from it. For me, I use it to charge my HTC HD2 anytime and anywhere.