I am preparing to finally install my solar panels on the roof of my van conversion. My battery is 24 volt. I have nine (9) 12 volt, 100 watt renogy mono panels and was planning to have a 3s/3p configuration However, I was reading through the manual of my smartsolar 150/70 and noticed that it states that while 3 in series will work, the highest recommendation is for 4 in series.
Is the efficiency with 4 in series so much better that it would be worth going with an 8 panel (2s2p) config and ditching one of my panels, instead of my originally planned 3s3p?
In other words, would I stand to get more from an 8 panel system than a 9 panel system?