ismaelcantu84
New Member
I Am Trying To Make A Rechagable Battery Than Can Charge From Solar Panels, Usb (5v) And A Hand Cranked Dynamo. The Solar And Crank Will Output Diffrent Volts And So I Need A Battery Than Can Take Any Voltage You Throw At It. Does Anyone Know Which Would Be The Best Battery For This. Also It Has To Be A Very Small Battery About The Size Of A Mobile Phone Battery Or Smaller. Also How Would I Or What Would I Use So That The Battery Will Stop Charging When It's Fully Charged And Not Get Damaged. If Someone Can Please Help I Would Really Apreciate It. Thank You.