How to use a solar panel without frying a battery when it's done charging?
I am curious to know if i need a component that will stop my homemade solar panel USB charger to stop charging a device when the battery is full.
could the solar panels over charge the battery when it's full? Will the unneeded voltage just turn into heat?
I also would like to know if I can hook multiple devices that each use 5v and 500MA with a solar panel that puts out 5v and 8 amps without slowing the charging speed. Im sorry if I can't phrase the question right... please try to decipher my description of my problem