Here's a little post script. The new to me WFCO is a 55 ampere unit, right?
Voltage limited to 13.6 - 13.71 depending on what mood it's in...
Well it managed a 51 amperes charge rate into my group 31 AGM.
The OP's MAGNATEK is ALREADY set up to deliver 13.6 volts.
Purchasing a Looney Tunes smart charger to push 35 amperes into a flooded group 24 battery is a waste of money. It's going to be cold there. What do I have to do to get this point across?
An hour charging before bedtime and a group 31 AGM will provide capacity to live a normal lifestyle all night without recharging and without worry. The 31 can provide 80+ amp hours of capacity then accept a charge rate TWICE THAT of a flooded 24. Using his EXISTING charging devices.
