Have a 2001 Beneteau 361 with a Xantrex Freedom 20 and failing batteries. Want to upgrade to 300-400Ah LiFePO4 batteries 12V and a Victron 3000W Multiplus.
Have repurposed one of the Victron diagrams to take a stab at the necessary components. 20201011 Beneteau 361 Electrical Schematic.pdf
Would love feedback.
The shore power is currently two 30A 120V circuits. One powers the Air Conditioning and the other goes to the Xantrex Freedom 20. Planning on having one 50A 120V (three wire) plug and a Victron Galvanic Isolator. The single shore power line would feed to the Multiplus, then split with one circuit to the Air Conditioner (would disconnect if shore power is lost) and the other to the AC panel.
The house battery bank would be 3 or 4 100Ah BattleBorn batteries that have internal BMS. Question: Does the 3000W Multiplus require 400Ah battery bank or is 300Ah okay?
The engine start battery is a FLA connected to a 100 A Balmar alternator with a MC-412 regulator. The alternator would directly charge the engine start battery.
A Renogy 50A DC-DC charger with MPPT would connect to the alternator to provide charging to the LiFePO4 battery bank. Solar is planned in the future and would connect to the Renogy DC-DC charger.
A Cerbo GX with the GX Touch 50 display will be purchased and a BMV 712 battery monitor.
Question: There are 3 switches. Wondering if they are configured correctly. The bilge pump is unswitched, as is the Renogy DC-DC charger.
Question: Did not include a Cyrix Li Charge or a Smart Battery Protect. Are these needed? The Battleborn batteries have a low voltage cutoff in the BMS.
Plan on expanding the system to integrate with a Raymarine or B&G suite, tank sensors, remote management, relays, etc.