What is wrong with my solar usb charger?
Im trying to do a solar usb charger from garden lights (idea from video link below). I got solar panels hooked up to give me ~5v DC already tested with a multimeter. I cut a male usb and turned it into a female usb port to hook up my phone, media player, ect. Then I hooked up the negative and positive cables to the red and black cables from the usb But its not charging any device.
1. Which color cables from the usb cable should i hook up to my negative and my positive from my solar array and do i need the white and green cables for anything?
2. If I need anything can you give me a link to how it looks like? I have a lot of electronic stuff but im new with hardware tinkering so i might have it laying around but might not recognize it
http://www.metacafe.com/watch/800000/solar_powered_usb_charger_cheap_and_easy_to_make
I tried diode, incandescent, and even the real sun. All 3 gave me good output of ~5V but i suspect its not that but something with amps?
So youre saying its not possible to get this to work?
There isn’t enough current really.
While the cell may be 5V, that is open. Put load on it and it will drop.
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