Dragonsniper108
New Member
Hello everyone I am making a solar rechargeable battery USB thing. I got all the parts and I know that a USB out put Is about 5V and is .500mAmps. My solar plane out put is about 6V and it's current is about 1amps. My batteries are two D cell and there out put together are about 2.5 and it's current is about 7.6Amps. I connect my solar plane to a Diode to stop the flow to go back which then is connect to the postive connection of my battery holder then to a resistor (4.7) which lowers the current to about .550mAmps. Which will go to my female side of the USB. and then complet the circuit by connecting the negative to the negative end to the battery holder and solar plane. Now the problem is that my friend is saying that I need to add a voltage limitar on it right between the solar plane and the battery holder. If I do how would do this?
P.S i know I need to double the batteries and the resistor but overall do i need the voltage limitar in it or no?
P.S i know I need to double the batteries and the resistor but overall do i need the voltage limitar in it or no?
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