Cruisers Forum

Join CruisersForum Today

Thread Tools Search this Thread Rate Thread Display Modes
Old 04-01-2018, 01:05   #31
Registered User
CatNewBee's Avatar

Join Date: Aug 2017
Boat: Lagoon 400S2
Posts: 808
Re: Electrical

sorry, have to revise my post above, the Victron Quattro operates according to the user manual between 187-265VAC and not at 110VAC.
The input frequency is between 45 – 65Hz So it is not configurable off the shelf to 100V.

CatNewBee is offline   Reply With Quote
Old 04-01-2018, 04:32   #32
Registered User

Join Date: Feb 2017
Location: Panama, Central America
Boat: CT 49, 1989
Posts: 69
Re: Electrical

Originally Posted by valhalla360 View Post
Where will you use the boat and for how long?

If it's moving permanently back to the USA, it will either cost you convert or be a hassle because you will have to special order 220v-50hz equipment.

If you will be traveling the world, you will have to deal with the hassle no matter what you buy, so it really doesn't matter (220v-50hz is more common so could actually be a benefit).

A good fairly straight forward method is to set the boat up as follows:
- Large battery charger that functions on 110 or 220.
- Large inverter that matches your boat system.

The inverter powers the AC loads and the battery charger keeps the batteries up. Eliminates issues with frequency and voltage regardless of the power source. Since the batteries are largely just a pass thru, they don't experience significant wear and tear but can allow the charger to be sized for continuous not peak loads. The inverter needs to be sized for peak loads (such as starting the air/con).


If we have-
a 'Universal' 90-250 VAC 45-65Hz input voltage battery charger.
Any Generator or other battery charging sources, Solar, Alternator etc also only charging our battery bank.
Then our Battery bank powering our Inverter (or a number in parallel) running all our AC loads.

The advantages are many.
All original AC wiring and appliances remain.
As stated previously the Batt charger only needs to be sized for average load, not momentary peak.
The battery bank will even out any peak loads.
Shore and Generator is often 'dirty' sometimes varying surprisingly markedly in voltage and frequency. Good Inverters have a good clean output, so better for sensitive devices and appliances.
Good inverters also have a good 'surge' capacity for Aircond start ups etc. If you add soft starts this is even better.
Victron PowerAssist, makes this even better when shore or generator is on.
This is basically a big UPS, so if your shore power suddenly goes out you boat power doesn't.
So saving on rewiring and appliances. Spend a bit for a Universal voltage charger. The money you save on not rewiring and appliances invest on good a inverter/s.

Just a suggestion.

Q Xopa is offline   Reply With Quote
Old 04-01-2018, 04:59   #33
Registered User

Join Date: Apr 2013
Posts: 5,637
Re: Electrical

The one catch with my suggestion is to incorporate some sort of low battery cut off. If the shore power goes out, you may not realize it until the batteries are completely discharged which can damage them or leave you unable to start the motor.
valhalla360 is offline   Reply With Quote
Old 04-01-2018, 05:16   #34
Registered User

Join Date: Feb 2017
Location: Panama, Central America
Boat: CT 49, 1989
Posts: 69
Re: Electrical

Agreed about low voltage battery cut off. But this can happen in any system.

Any little 'stray' or forgotten about current drain will eventually drop your batt voltage to damaging levels. But as you say particularly fast in a big Inverter set up.

I think a low voltage batt disconnect should be apart of all Battery bank systems.

This is a LFP bank requirement, but in fact should be 'standard in all batt banks.

Forgot to mention also in my previous post, that not only as you mentioned the Batt charger can be sized smaller for average loads. This also applies to Generator sizing, when a gen is installed. Ie the Gen can be also sized smaller for average loads not having to be sized for max/ peak loads.
Q Xopa is offline   Reply With Quote
Old 08-01-2018, 05:07   #35
Registered User

Join Date: May 2015
Location: Dubai
Boat: 450S
Posts: 123
Re: Electrical

Was on a L63 power cat recently and it was a DC powered boat. Shore power to charger to batteries to inverters for all AC loads. DC genetator to batteries with auto start if battery voltage low. Some solar as well. Universal system would work anywhere.
Pascals Wager is offline   Reply With Quote
Old 08-01-2018, 05:39   #36
Marine Service Provider
boatpoker's Avatar

Join Date: Nov 2008
Location: Toronto, Ontario or Bahamas
Boat: Benford 38 Fantail Cruiser
Posts: 2,974
Re: Electrical

Think you guys scared the OP away

That hysterical laughter you hear as you sail a way in your "new" boat ..... is the seller.
boatpoker is online now   Reply With Quote

cal, electric, electrical

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Complicated Electrical Question - Good Puzzle for You Electrical Geniuses Dockhead Electrical: Batteries, Generators & Solar 36 07-09-2010 06:14
Electrical Panels/ Circuit Breakers CaptainK Marine Electronics 12 14-05-2006 20:29
Electrical Fire Prevention from Fluke GordMay Electrical: Batteries, Generators & Solar 0 12-08-2005 09:49
Electrical Q & A GordMay Electrical: Batteries, Generators & Solar 0 26-07-2005 11:38
Excerpts from ABYC - Electrical GordMay Electrical: Batteries, Generators & Solar 5 29-01-2005 14:17

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 16:23.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.