Electrical Wiring for solar USB Charger with rechargeable battery?My goal is to have some sort of three way connection that would allow my charger to have the option of having power run from:A) the solar panel to the batteriesB) the solar panel to the USB female connectorC) the batteries to the USB female connectorwith one switch if possible,Currently I have a DPDT center off switch that allows me to control whether power to the USB is coming from the batteries or the solar panel. Is there a 4-position rotary switch that could give me the 3 different on positions and 1 off position? How would I wire this?
You would not lose anything if you permanently wired the solar panel to the USB and simply used your switch introduce or isolate your batteries from the circuit.
First I applaud your desire to make this gadget. yet why do you want to apply this way of battery? There are flat Lithium batteries besides except you're worried approximately area. I even have seen the Altoids photograph voltaic charger and the photograph voltaic panel is now and lower back greater advantageous then the container. if your iPhone has a 2,000 mAH score you may desire to evaluate a battery length of a million.5 to 2 circumstances greater advantageous then the gadget you desire to cost then do the calculation for the photograph voltaic panels.
