I’m currently toying around with a stepper motor that I plan on using as a bike dynamo and a wind generator which will be hooked up to a 6 volt battery. The idea here being to have a modular design so that I can charge a 6 volt battery at lower rpms if I had the need to and wire 2 6 volt batteries in series to get a 12 volt battery.
My problem is that there doesn’t seem to be a lot of choices when it comes to using a 6 volt charge controller, I’ve only found one that seemed adequate from googling .
Another option would be using the LM2596 chip sold on ebay but I’ve no idea as to how well that would work.
Thoughts?