I'm currently researching a project to install flexible solar panels on my boat. I had planned to use (2) 100W flex panels however they would span over a Bimini SS tube frame and from what I've read that is a huge risk for microcracking and fire potential. This brings me to version 2 of my project, to install (4) 50 W panels which I can install between frames on the soft Bimini.
Boat House Batteries: 240Ah house battery (lead-acid), 12V system.
My question: Would I be better off to put the 4 panels in series and use a 150/35 MPPT controller or put 2 in series + 2 in parallel and stick with a 75 / 15 MPPT (which I already own).
I'm struggling to understand which would be better from a battery charging stand point? Neglect any pro/cons to shading as this isn't a factor for the panel placement (either they all will be in the shade or none will). I want to get the most charge potential out of the array.
Panel Info:
Renogy panels. 50W Vmp: 20.3V, Voc: 24.3V, Imp: 2.74A, Isc: 2.75A.
