I have two solar cells wired in series. I would like for someone to help me design a circuit to doubler the voltage or if not exactly double increase it by a margin. the ratings are 19.4 volts at 150milliamps. the purpose is to be able to create a 5 to 24 volt charge station for batteries. I would like for the circuit to be capacitor driven. these readings are no load readings. what is the best way to find out the full load drop for regulation? connecting a 5k resistor in series and seeing what it is pulling out minus resistor v drop? not sure on calculating full load regulation. I could put diodes on the solar output to block reversal voltage from the battery then read the output voltage of the panels. from its leads.