Powcell sleeve is a battery pack for the iPhone that charges itself from the ambient light or the Sun. The battery pack grips the iPhone like a normal cover or as any other battery pack that we have seen before.
So even if you forget to charge your iPhone or the battery pack with AC power, this thing charges itself automatically. Now that’s certainly great utilization of solar power in a cellphone, my only query is how long will this thing take to charge up?
Powcell sleeve fits in perfectly on the iPhone 3G / 3GS and doesn’t block the camera or any other feature.