Powcell endowed with its own integrated battery, which is able to collect solar energy when the phone is it does not. To charge the device you want to place it in the charger and it charges from the battery, or put in the sun. Charger Powcell can be charged as under the direct rays of sunlight, and in diffuse light.
The internal battery of the Powcell is charged by exposure to light and the battery is charged even when the phone isn't inserted into the sleeve. The company that makes the Powcell has units for the iPhone and Blackberry devices.
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