Free loader protable solar energy doesnt charge my iphone 4?

Question

I have purchased this product to charge my iphone 4 on the go but it seems only to charge my iphone while it is turned off the device says it is charging but the iphone says it is not receiving charge yet if i turn the iphone off the battery will go up
how can i fix this?

Answer 1

You do know is probably only trickle chargers it. So when its turned on the amount of power its using it greater than the power the solar panel is putting into it. You need to turn the phone OFF and leave the panel in direct sunlight for several hours or more.

Answer 2

Solar Power Design Manual : http://SolarPower.duebq.com/?cDz