Reply To: Solar Power Supply

Hi Kevin-

You’ll probably want to keep the batteries either all in series or all in parallel to keep them charged correctly. I haven’t done a lot of work with batteries, but what I’ve seen seems to have them either all in parallel or all in series. There’s a pretty similar circuit here

http://www.evilmadscientist.com/2008/simple-solar-circuits/

with some nice discussion below. Based on reading that, it looks like your system will work OK, but it’s pretty inefficient, and not something that will scale up really well. There’s some interesting reference information here

http://www.powerstream.com/tech.html