[C320-list] Installing Victron Multiplus Inverter/Charger 2000W w Lifeline AGM

[RichF RF]

Thanks for the clarification Scott.  Just confirmed and noticed some opt to
use the second input on the 712 to measure mid-point voltage on the mains.
I like your setup, very nice.

On the install...
Battery Cable Routing - measured that only 1/2 the length will be needed to
route 2 (1 AWG) positive and 2 (1 AWG) negative from the batteries under
the galley floor. This will provide 84 mm2 to meet specs required by
Victron.  One 1/0 would not be large enough, 2/0 would be more difficult to
work with.  It was literally twice the length routing at OEM locations
behind panel and behind galley cabinets, 5 vs 10 m (roughly)!  There is
room to run a conduit, pvc or flex hose.

Was able to route "wire fish" at bilge/holding tank area to opening where
fresh water lines exit to water pump in aft cabin.  From there, fished up
next to anti siphon hose at bulkhead where aft cabin and galley meet right
next to existing charger (OEM) location.  I did take pictures & will post.

Rich #990

On Fri, Apr 23, 2021 at 9:36 AM Scott Thompson <surprise at thompson87.com>
wrote:

> I have the somewhat older version of the Victron battery monitor. (I
> think the only difference with the newer one is bluetooth.) It's a very
> nice unit but it only monitors voltage on the second bank, not charging
> or discharging. You would need two, and a second shunt, if you want to
> monitor two banks fully and separately. In my case the two large
> batteries are paralleled into a single house bank and that's the one I
> monitor fully. I have a separate starting battery. With this setup I
> also installed one of the Victron battery combiners so that the house
> bank will charge off the starting battery when the alternator is
> charging it, and the reverse when charging the house bank from solar
> panels or shore power. Otherwise these circuits are kept separate via a
> Blue Seas Dual Circuit battery switch, which simplifies battery
> management to a simple On/Off procedure. (The circuits are kept separate
> but turned on and off together. I have the "plus" version which lets you
> combine them. I only used that once when the starting battery died due
> to my improper maintenance.) I also have a Victron solar regulator and
> the (optional) solar regulator monitor. The Victron stuff is first rate
> and looks classy in my opinion.
>
> On 4/22/2021 2:00 PM, RichF RF wrote:
> > One of the Interstate FLA 4Ds just failed after 5 years, was about ready
> to
> > go full chernobyl when I checked the boat over the weekend.  Amazing how
> > hot the case (starting to melt) and wires around the battery were -
> > literally arrived just in time to prevent a major disaster.
> >
> > Done with FLA batteries.
> >
> > Picked up two Lifeline AGM 4Ds and Lifeline Group 24 AGM start battery.
> > They fit perfectly in existing battery trays.
> >
> > Also purchased the Victron Multiplus
> > Victron MultiPlus Inverter/Charger 12 VDC - 2000W - 80AMP Battery
> Charger |
> > Compass Marine (marinehowto.com)
> > <
> https://shop.marinehowto.com/products/victron-multiplus-inverter-charger-12-2000-80
> >
> >
> > This has a secondary charger specifically made for a start battery.
> >
> > Digital Panel Multi-Control
> > Victron Digital Multi-Control | Compass Marine (marinehowto.com)
> > <https://shop.marinehowto.com/products/victron-digital-multi-control>
> >
> > Smart Dongle V.E. Bus BlueTooth uses VictronConnect App for
> phones/tablets
> > Victron V.E. Bus Smart Dongle | Compass Marine (marinehowto.com)
> > <https://shop.marinehowto.com/products/victron-ve-bus-smart-dongle>
> >
> > Plan to get the battery monitor that will monitor both banks and has
> > bluetooth
> > Victron BMV-712 Smart Battery Monitor | Compass Marine (marinehowto.com)
> > <
> https://shop.marinehowto.com/products/victron-bmv-712-smart-battery-monitor
> >
> >
> > Just checked and the Multiplus fits where the old charger was located  -
> > C-Charger 5000 Series 30 AMP.  The Multiplus is much larger and heavier,
> > will need to sit a bit higher in that location.
> >
> > Has anyone installed one yet?  Did not see anything in the discussion
> > groups beyond Victron solar chargers.  The features on this seem
> > impressive.  Still debating if I take this on or use my trusted
> electronics
> > pro.  Seminars that I have watched from Jeff Cote, Marine How to and PKYS
> > https://shop.pkys.com/Technical-Pages_ep_41.html really have some great
> > information.
> >
> > Sorry for all the links but have not seen these systems posted here yet.
> >
> > RichF  #990
>
> --
> Scott Thompson
> Surprise, #653
>
>