BLF
I believe we are now getting the the heart of the issue and where your confusion stems from
My statements referenced a "LOAD" not a battery but a generic load
The operating voltage was mentioned just as a reference point. Lets keep everything at 12 Vdc operating since 99% of use here at RV.Net use a 12 Vdc house battery bank.
You are correct if your system is simply a battery charger not a power source then the house battery bank comes into play as to how much current it wants ands when it wants the current. I look at my system as a power source and regularly have 30 to 40 amp draws from my system controller during the daylight hours, no need to waste those potons.
Battery charging does not change when you make a higher voltage bank all the same rules apply - nothing changes. Well except maybe for the cost of the darn things. and to top it all off I have seen 48 VDC battery banks rated at several thousand amp/hrs
