Doesnt solar charge

I have worked on this plus had my brother help me work on this and the solar power will not charge. I did charge this up with usb charge and it work for a while however for whatever reasoning it only stays charged for about an hour . When it arrived it was packaged well so not sure if damaged or not . I have a samsung galazy and this is not working on it . Also what happens in the winter (chicago, Ny etc) solar power and sunlight is very few days during that time. 

Im sorry that I have to give two stars but if it doesnt work it doesnt work.