I don't have a lot of hours on my RV I'm kind of new.  The 2 - 6v Batteries were quite old when I purchased it new a year ago.  I recently replaced them.  I also replaced the DC power supply (WFCO 45AMP power converter) because when the batteries finally died I had no DC power when I was on Generator or shore power.  

I am not positive but I am pretty sure that before the replacements, the red LED under the  AUX battery would shut off when I switched off battery power. (You can hear the relay click when you turn it off or on) Since I replace the supply and the batteries, the LED never turns off.  Everything works fine (DC power is good with AUX switch on, Generator, or shore power) and I can start the generator if the switch is on.

Is this normal behavior?  If not what does the light staying on signify?

https://drive.google.com/file/d/1Y8XPxR11IoBmLa3zVRM1GBvp10FdM5yy/view?usp=sharing