That is a good question. Strangely, I didn't even think about connecting them in series. I connected them in parallel. I can appreciate how in series they would collectively get to say 14v+ earlier in the day and stay at 14v+ later in the evening. That would generate a little extra charging. Does anyone have any real life data on how much/little gain this ends up being in the real world? Would be interesting to know. Since all the panels are connected on the roof it wouldn't be terribly hard to re-wire them in series.
I guess the gain comes from the time between when the individual panels are producing ~5v to the time they are producing ~14v (and the reverse as the sun goes down). I'm curious....is this ~10 minutes in the morning and ~10 minutes in the evening? 20 minutes on each end?? Anyone know?
I suppose when I go boondocking next if I'm up before the sun I can keep an eye on my solar charge controller and measure the time...
PS: Solar is addictive.
Happy camping!
Chris
