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-   -   12 and 24 volts systems (http://www.sailnet.com/forums/electrical-systems/49267-12-24-volts-systems.html)

imsaint007 11-27-2008 11:16 PM

12 and 24 volts systems
 
Hello, anybody out there could give some advise ,my boat is a Nicholson 44 and has 24 volts system , in the US 12 volts eletronics is more available ,so I was thinking to have bouth systems,can I run 3 batteries banks as (2 )24 volts and one 12 volts ? or is better to stick to one system ? Tks
The reason is I just bought a windlass horizon 1500 simpson lawrence (ebay)and is 12 volts and I can't return it so maybe I could use a 12 volts batteries bank just for the windlass and other electronics. and keep the 24 volts as the house bank.:confused:

badsanta 11-27-2008 11:52 PM

24 to 12 DC converter

HerbDB 11-28-2008 07:16 AM

I took a tour of a Beneteau 57 a couple of years ago and it had both systems. I don't know how it was wired, but you might try to find someone who owns one and get more information.

goboatingnow 11-28-2008 11:02 AM

I would suggest keeping to one system for example dc convertors for teh windlass would be mad money for power that big. You cant tap of the 24v battery system either. I'd exchange teh windlass

sailingdog 11-28-2008 11:04 AM

The problem with installing a 12 VDC system is the wiring is often undersized for a 12 VDC system, which has higher amperages than a 24 VDC system. I would recommend you get a 24 VDC to 12 VDC converter that can handle the amperage draw of your windlass and just leave the boat wired for 24 VDC.

What might be a good compromise is to get a smaller DC-to-DC converter and install a windlass battery up near the anchor locker. :) Then use the smaller DC-to-DC converter to power a charger to keep the 12 VDC windlass battery charged.

goboatingnow 11-28-2008 11:44 AM

A dc convertor to power a windless, would probably cost more then the windlass!!. If you have to keep it , teh 12V battery is the only solution

imsaint007 11-29-2008 12:53 AM

Thanks for all inputs , I think that a 12 volt battery bank near the anchor locker with a 12 volts charger would do the trick.

wickedrevs56 11-29-2008 06:31 PM

There is an advantage as well with the battery for the windlass-- close to the anchor locker, less amperage draw for the "horsepower" the windlass needs-- also always ready and fully charged no matter the condition of the rest of the system provided ample charger is installed--- always nice to be able to "up anchor" quickly in event of foul weather, bad company, etc etc

boatpoker 11-29-2008 06:40 PM

I assume you have a 24VDC alternator... charging the 12VDC battery off the grid is your next issue.


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