Hi acei,
2oldman has just moved over to 24 volts and has a dc to dc converter from Victron to meet his 12 volt needs.
So far it appears he is getting a larger solar harvest, but he has not run it in winter time yet.
BTW Victron makes a better power meter than anyone else--and it is a bit cheaper than the nearest competitor. Talk to mena about his.
I'm a bit of curmudgeon so I do not have an amp-hour counter. I'm also way out in left field on batteries as almost no one successfully uses a multiple 12 volt array.
I believe in saturation charging, which means 14 to 16 hours at a fairly low amperage (1/5 of an amp). That's usually impossible to do with solar, for the sun is rarely up for 16 hours. Because of having two banks and appropriate switching, I can use one bank to do a saturation charge on the other, if I choose to.
