In response to ehahn’s post i do personally subscribe to the whole DC to AC to DC thing for cost, control, convenience.
In my RV i do let the lifepo4 charge directly from the alternator if they are at a low voltage, but the wiring is highly non optimized and i dont get anything crazy from it. On the other hand i can use my 5000w msw inverter to power 4x30a power supplies and get a faster charge rate while allowing the voltage at the input to the inverter to drop to say 11 something, because who cares.
Yes, more conversion losses but if im trying to charge batteries at the equivalent of only 1-2hp off the back of a ~7 liter v10, efficiency has already gone out the window imo.