daveyboy12 wrote:
How do you best determine your battery level charge? If I fully charge them, how would I know they are at 75% or 50%? Does the voltage drop to say 6 volts when they are 50% CHARGED? Do they make a battery charge level meter?
You would wire 4 6V's in series/parallel so that they'll still be 12V so you can use the 12V charge tables. Honestly, with 740 amp hours of batteries I only occasionally check my battery monitor just to either make sure everything is working ok or for nerd purposes. :) I pretty much use as much power as I like on a 3-4 day trip. I had these in my old 5th wheel too and with the extremely low parasitic draw in that rig, I never went below 80% SOC even on a 4 day trip.
Old rig - batteries in front storage compartment