Hi, I'm new to all this and am trying to set up my system.
Most likely I will be installing 2 sets of 3x18V 5.5A panels in parallel, each to a MPPT 100/20 charge controller.
It looks like the 150/45 has more functionality, like being able to attach a battery temperature sensor, and having a relay. Aside for the fact that I could then connect all these into 1 MPPT, is it the case that it has more functionality? (It will be a LiFePo4 battery)