Voltages

[Bacon Wizard]

I was thinking either capacitor(s) or a "joule-thief" type of arrangement first, and then a cap to smooth things out.

[Max]

I was thinking either capacitor(s) or a "joule-thief" type of arrangement first, and then a cap to smooth things out.

What do you need the higher voltage for? If it is to run a drive motor or a motor that has to spin continuously then I imagine you will struggle. The capacitor idea I just for an axe or something which runs temporarily.