I used this schematic for inspiration: https://www.victronenergy.com/upload/documents/MultiPlus-3KW-120VAC-12VDC-600Ah-Li-Lynx-Smart-BMS-&-distributors-Cerbo-GX-touch-generator-MPPT-Orion-Tr-Smarts.pdf
Here is the PDF 2008 Leopard 40 SV COSMOS Electrical & Solar Upgrade 2021 (1).pdf
Boat is a 12m sailing catamaran with two engines. One alternator per engine. Ripping out current system of LG NeonR 360wp x 4 PV, 900ah Firefly Oasis AGM, Xantrex RV2012GS Inverter/Charger.
I have intentionally wired the alternators on circuits without a On/Off switch. Alternators wired directly to the starter batteries. Starter motors are wired through On/Off switches.
Lynx BMS shows ATC wire going to ignition. How do I handle for two engine setup? Is this needed? Do I wire to one or both?
Can I double stack MRBF on a single battery post?
Please critique the setup and tell me your thoughts. Is there a better way, simpler way, cheaper way, easier to install way?
I currently have a BMV-712 installed with temp sensor. It appears this function gets replaced by the Lynx BMS. I also have a spare BMV-712 new in the box. I was thinking about hooking them up to each engine start battery. My DC panel has a rotary switch and old analog voltage gauge for the start batteries. I plan to leave this installed as well. So the BMV-712's would be redundant. This is my first electrical drawing. Used Canva.com which we use for website stuff already.