This could be a great way to move around with mobile power on demand for those location shoots away from any electric source. EarthTechProducts.com offers a power pack that combines the XPower 300 Plus with the Sunlinq Foldable Solar Panel.
The Xpower pack is a 300W portable power inverter and battery providing up to 300 Watts of output of portable electricity and backup power, while the 25-Watt Sunlinq solar panel can completely charge the 300W PowerPack in about 12 hours, providing up to 6 hours of runtime for a 25 Watt notebook PC.
Aside from laptops, it can also power any other 12V or 115 appliance or device: hand-held blenders, fans, computers, clock radios, small power tools, emergency lights, TVs and radios.
The power pack is retailed at $478.95