There are a number of devices or solar chargers that offer to charge gadgets with solar energy. But most of them are impractical, to say the least. It is simply not possible or viable for most people to allow their gadgets to be placed in direct sunlight for the entire day. That is where the ReNu Modular iPhone charger scores, it does not require the user to keep the iPhone in the sunlight all day long to charge it.
The ReNu doesn’t have an extremely high efficiency or some hyper gadgetry to capture solar power quickly, but it does have a healthy dose of common sense. Rather than placing your iPhone in the sun all day long, you can ReNu solar panel in the sun to charge its batteries. It takes nearly 9 hours to charge completely in direct sunlight, and 20 hours in indirect sunlight. Once fully charged, this iPhone/ iPod dock can then be used for 7-8 hours of music. The device will cost $200 when it is available sometime next year, but the manufacturer is already taking preorders.