Im starting a major up fit to my Jeanneau 440 electrical system. I'm replaceng the 4 type 31 lead acid 215ah with 4 Dakota Lithium 280ah type 31 size that will fit in the same real estate. I am also upgrading my alternator to a Balmar XT.
The batteries have internal BMS and I am still running lead acid starter batteries for my engine and generator so do I want a smart BMS or should I use a battery isolator to charge the starter batteries.