My Battleborn LiFePo4 battery is mostly charged by 136W of Solar and MPPT Li compatible charge controller.
I did not bother to upgrade or update the charging from the truck. My use needs don't need it.
When in a pinch, I have a 1000W Yamaha generator and can use the stock AC/DC converter to charge the battery. Granted it won't charge it fully or 'optimum', again, my use case(s) don't require or need that.
For those that travel a lot and go from place to place and only stay 1 night at each place maybe better truck charging makes sense for them. Not needed for me.
- Mark0.