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Old 29-03-2017, 03:01   #1
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Beneteau 12volt charging, 24 volt winch

Does anybody know how Beneteau wired up the 12v charging circuit to 2x12volt batteries connected in series for the 24 volt winch
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Old 29-03-2017, 03:39   #2
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Re: Beneteau 12volt charging, 24 volt winch

will this help? http://engineering.stackexchange.com...nical-solution
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Old 29-03-2017, 05:44   #3
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Re: Beneteau 12volt charging, 24 volt winch

Look for a ​Yandina "trollbridge" unit?
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Old 29-03-2017, 06:09   #4
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Re: Beneteau 12volt charging, 24 volt winch

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Originally Posted by john61ct View Post
Look for a ​Yandina "trollbridge" unit?
Trollbridge2400 Information
http://www.yandina.com/acrobats/TrollBridge2400.pdf
Trollbridge24 Information
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Old 29-03-2017, 07:47   #5
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Re: Beneteau 12volt charging, 24 volt winch

They probably didn't. And it probably only charges from a shore charger

Get a dc to dc charger. 12v to 24v.
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Old 29-03-2017, 11:19   #6
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Re: Beneteau 12volt charging, 24 volt winch

has to be in series
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Old 29-03-2017, 11:20   #7
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Re: Beneteau 12volt charging, 24 volt winch

the batteries must be wired in series
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Old 29-03-2017, 17:19   #8
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Re: Beneteau 12volt charging, 24 volt winch

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Originally Posted by Bolt View Post
Does anybody know how Beneteau wired up the 12v charging circuit to 2x12volt batteries connected in series for the 24 volt winch
If it's the arrangement I am familiar with, you will have two or four 12V batteries up there in the bow. Under normal conditions, they are all wired in parallel through the relay box up there with them, and therefore are charged as your service and engine start batteries are, through dedicated charge splitters for each battery bank (from engine alternator, and from shore power, depending if you are running or plugged in).

When you hit the windlass button, the relays in the relay box change the connection from parallel to series. So if you have two batteries, you end up with 2 x 12V = 24V. If you have four batteries, you end up with two lots of 2 x 12V = 24V, and those two pairs are then paralleled to give you double the current capacity.

It is the same system as used with 24V bow thrusters on 12V boats.

I hope that helps.

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Old 29-03-2017, 19:10   #9
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Re: Beneteau 12volt charging, 24 volt winch

Exactly what the trollbridge does, linked to above.
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