New-to-us boat currently has a Yanmar 3QM30, a 35-amp Hitachi alternator with internal regulator, a diode/isolator that eats 0.7 volts and two (new) Trojan T-105s in the house bank. It takes virtually forever to put any charge on the batteries from the engine.

We plan to remove the diode and upgrade to a rebuilt 100-amp Delco alternator, a Balmar Max Charge MC-614 regulator, a Xantrex Echo Charge and add two T-105s for a total 450 a/h.

Not sure about the Echo Charge. Might opt for a voltage-sensitive relay instead. Your thoughts?

Plan to add a couple solar panels next year if I have the money. Any help appreciated.