This is a 5V 260mA solar panel board, with 5V voltage you can directly charge most USB device, althought the current is maybe only 1/4 of normal charger, but it is fun to try. See the images directly about how to build it. All items are available in our store.
Design a portable charger is always interesting, you only need a few things to do so, A lithium battery, unlucky we only have a small volumn lithium battery 860mah right now. A charging circuit board to handle the input, a new type of this charging circuit just arrive, the maximum power output up to 1A,
