I already own 2(ea) Sterling 24v to 12v battery to battery chargers rated at 50 amp output on the 12v side. I installed these previously to charge dedicated 12v batteries running the DDEC stuff on my old Detriot's. These worked well. Looks like a simple option is to install these again and use them as a source to charge the house bank now that I no longer need the DDEC batteries. This way the power coming into the 24v batteries is from either a/c fed charger or engine alternators. I was considering this option already but wanted to explore all options. All the input is very much appreciated.