After a few months of oddly-confident claims that "you need DC-DC charging" the source of the confusion is revealed. OP is making a hasty generalization from his own experience hammering a 95A with a 200Ah LiFePO4 bank. Yes, even I would use a DC-DC (or increase resistance in the circuit) in that scenario. A wise man knows what his ass can bear.
I share data from my own direct-charging setup but I don't use it to tell other people what "they need." IME people who tell you "what you need" don't know and don't care what you need. Rant concluded.
https://mouse.mousetrap.net/blog/2025-05-13-another-28-alternator-direct-charging-runs.html
#campervan #alternator #dcdc #isolator #lifepo4