I recently purchased a 1988 40'
monohull that has generally been very well-maintained, but the
electrical system is a complete hodgepodge and I would like to replace it with modern tech.
The
current batteries (both house and starter) are at the end of their life, and I recently had to replace the late 80s era Inverter/Charger with a new
Victron MultiPlus II, so I am inclined to stick mostly with
Victron equipment (except batteries).
Attached are some photos of an early version of the designed I'm working on, and I'd appreciate any (gentle) feedback and also some specific answers, if anyone has them.
1) I'm installing two identical 560Ah LFP
batteries. Most sources suggest merely paralleling them. I'd rather not run long 000 wire runs to a switch -- how important is it to be able to isolate them from each other?
2) Is it wise or even necessary to put a VE.Shunt between the
battery input and the
alternator input into the system, to determine and report different
charging parameters?
3) The WakeSpeed 500 appears to be the go-to for a distributor
regulator, but some
wiring diagrams include a shunt near the
alternator, but others don't? This is probably somewhat related to the previous question.
4) I have a dual-purpose 140Ah LFP to replace the existing (dead)
AGM starter
battery. The existing
Balmar DuoCharge would appear to be more than adequate to keep it charged -- any concerns/considerations regarding this?
TIA for any
advice. Once I get a rough
draft I need to
work on fusing and breakers.