The Port Solar Charger from XD Design is designed to stick to a window and use the sun’s rays to power your gadgets.
This solar charger has a built-in battery that can be charged with a USB cable which will take about 2 hours or by sunlight which can take up to 20 hours. Yeah, you can’t be in a hurry 🙂
The Port Solar Charger’s built-in battery has a capacity of 1000mAh, so it won’t fully charge your phone. But it’s better than nothing and it’s free power.
I am not sure how well a solar charger like this works, as it depends on how much sunlight is hitting the window it’s attached to. But it would be a cool way to power your devices for free if you frequently travel by train, plane, or automobile, or if you have a nice big window that gets a lot of sunlight.