Merged LiFeYPO4 1000Ah Winston prismatic cells and all electric galley...

[CaptainRivet]

Originally Posted by WizClark

Re: Wakespeed -

I am simply providing the results that I realized with my actual setup. I think the BMS controlling the alternators solves a number of potential issues discussed in this thread, while maximizing the output. As I got a lot out of this thread from reports on actual installs, I'm just trying to give back a little info. I can't comment on it's adequacy or percieved expense which I imagine varies significantly for individuals.

Yes they integrate well.
Actually no much differences for alternator charging:
Large case with proper high amp output a wakespeed is a no brainer.
But 2x new or fairly new standard 90-115A alternators as most of the 35- 50ft cats from 2010 on have (or actually a lot from 2000 on as they got new engines), 2x wakespeed for 2x60A charge is just too expensive when converting to LI.
I wish just something like wakespeed for half the price for smaller standard alternator would exist.
But if you are not lucky to have the Mitsubishi 115A there is no alternative to bite the bullet or have a lead starter with DC to DC or argofet solution.
Well if seen the price of wakespeed even an new alternator which is already LI capable makes even more sense then a 100A standard alt with a wakespeed.

[s/v Jedi]

Originally Posted by CaptainRivet

I like that setup the More i see it…first it was too much conversions but you really pointed out what makes sense.
The only very negative point is you can’t use your 24V house to emergency start if the 12V starter battery is dead because you have 12V starter…

This is why I show two start batteries and an isolation switch so that you can isolate a bad starter battery. They can’t go empty because they are always in float charge.

Originally Posted by CaptainRivet

You are running 2 independent 1p4S 12V battery with its BMS for 12V and put that them in series, correct?
But you charge via 24V Victron MPPT and DC tonDC Charger, doesn‘t that interfere with 12V BMS?

If correct You could simplfy that even more by charge each of the 12V LFP of the 12V alternators or 12V DC to DC chargers so you can actually use the house as emergency starter. I eg have all that in 12V already but could really use 24V for my inverter as 5kw in 12V is massive
The additional 24V busbar and 24V windlass motor makes absolute sense.
My only huge draws are those 2. and to get a 24V 5kw Multiplus inverter is easy and cost effective while a 5kw Quattro breaks the bank.

No, I run 2 1p8s 24V batteries in parallel. Maybe thus diagram shows 12V batteries in parallel because I have both options posted, but they are in parallel.

[s/v Jedi]

I added a version for big alternator charging here: https://www.cruisersforum.com/forums...on-268766.html

[newhaul]

Originally Posted by s/v Jedi

I added a version for big alternator charging here: https://www.cruisersforum.com/forums...on-268766.html

Does this make sense to you just did a quick sketch of my system . It looks bad I will try to clean it up when I get home .

[zurk]

Originally Posted by newhaul

Does this make sense to you just did a quick sketch of my system . It looks bad I will try to clean it up when I get home .

yours actually looks like mine. oh the irony.
but good on you. yes yours looks good. no unnecessary spaghetti all over the place.

[newhaul]

Originally Posted by zurk

yours actually looks like mine. oh the irony.
but good on you. yes yours looks good. no unnecessary spaghetti all over the place.

That's just a quick sketch on my lap .
But thank you . Yours has way to much sketti
I will redo it at home and no it doesn't look like yours at all

[s/v Jedi]

Originally Posted by newhaul

Does this make sense to you just did a quick sketch of my system . It looks bad I will try to clean it up when I get home .

It looks like you have a 750Ah lfp battery that only powers the bilge pumps?

[s/v Jedi]

Originally Posted by zurk

yours actually looks like mine. oh the irony.
but good on you. yes yours looks good. no unnecessary spaghetti all over the place.

You have two 260Ah batteries just to start the engines. And a house bank that is also two 260Ah batteries. You have no temperature sensors on your alternators either.

I didn’t check yet but I guess you wont have fuses nor disconnect switches.

[newhaul]

Originally Posted by s/v Jedi

It looks like you have a 750Ah lfp battery that only powers the bilge pumps?

Sorry my handwriting is not so good when freehand on my lap in the cockpit . in a better drawing I will correct that to read a group 27 FLA. Start battery with the alternator charging it and the 50 amp b2b charging my LFP

[newhaul]

Originally Posted by newhaul

Sorry my handwriting is not so good when freehand on my lap in the cockpit . in a better drawing I will correct that to read a group 27 FLA. Start battery with the alternator charging it and the 50 amp b2b charging my LFP

This look better ? Easier to understand?
Opinion should I remove loads from the mppt output and put on main bussbars ?

[s/v Jedi]

Originally Posted by newhaul

This look better ? Easier to understand?
Opinion should I remove loads from the mppt output and put on main bussbars ?

- the smallest smartshunt is 500A

- I don’t even know what those LOAD output terminals do on a MPPT controller. You certainly can’t let your boat power depend on a solar controller. So yes, use the busbars.

Basically, change it into the diagram I posted as much as possible. It will get better with every change

[fxykty]

Silly question I’m sure but how do you connect to a Cerbo to update the code to display the extra information? I’ve seen and played with GitHub for the code, but how do I get it onto the Cerbo?

[hzcruiser]

Originally Posted by s/v Jedi

I use LucidChart

ok, I need to check that out, thanks!

[Phil_Fr17]

I read ALL the thread from the beginning, very interesting.
Especially to be able to read or appreciate the actual use of 1kAh on board. You still need space to install the solar panels, it will not be possible for everyone.

[goboatingnow]

Originally Posted by fxykty

Silly question I’m sure but how do you connect to a Cerbo to update the code to display the extra information? I’ve seen and played with GitHub for the code, but how do I get it onto the Cerbo?

The Cerbo code is only Victron upgradable , ie you upgrade to whatever Victron release

The Venus OS code is user modifiable and upgradable