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 Dock Power Conversion		  New Topic  Topic Locked
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slaedlein
1st Mate

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USA
51 Posts
Initially Posted - 05/06/2006 :  20:38:08  Show Profile
Here is a question for those with an aptitude for electrical conections. I seem to be lacking in that department. My new sled contains a charger for the battery that is set up for connection to a 110 outlet. How do I use the 30amp dock side power to charge the battery
Scott
HuBeStu
1997 WB
Hull# 250
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dlucier
Master Marine Consultant

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Virgin Islands (United Kingdom)
7583 Posts
Response Posted - 05/06/2006 :  21:00:07  Show Profile
Normally, one would connect a shore power cord between the 30A dock outlet and the boat's power inlet. From the power inlet, the wires should go to a breaker box inside the boat which would feed the 110V outlets.

Assuming your boat is not set up for 110V, you could run a cord from the 30A dock outlet into the boat where you would plug in the charger. Depending on your power cord, you may or may not need an adapter to be able to plug in a 110V plug.
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slaedlein
1st Mate

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USA
51 Posts
Response Posted - 05/06/2006 :  21:24:40  Show Profile
A little clarification. There is a male plug for 110V in the stern that runs directly to the Charg Pro battery charger and then to the battery. Is it safe to run 30 amp directly to the charger via a plug adapter?
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Frank Hopper
Past Commodore

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Pitcairn Island
6776 Posts
Response Posted - 05/06/2006 :  23:57:33  Show Profile  Visit Frank Hopper's Homepage
Yes, an electrical device runs on its design voltage and only uses as much current (amps) as needed. You could have a 100 amp circuit and if it was 110-115-120 it would be fine. Your charger will only drink what it needs.
You might want to buy a book, this is very basic stuff. Several people recommend a a marine wiring book fairly often, I assume it has a shore power section in it.
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Leon Sisson
Master Marine Consultant

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USA
1893 Posts
Response Posted - 05/07/2006 :  09:14:10  Show Profile  Visit Leon Sisson's Homepage
Scott,

I would like to second Frank's excellent suggestion you get a study a book on boat electrical systems. I recommend Don Casy's "<b>[url="http://www.amazon.com/gp/product/0070366497/002-4853760-1229631"]Sailboat Electrics Simplified[/url]</b>."
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There are additional issues (<i>a.k.a. potential for big screw ups</i>) associated with boat electrical systems which are of little or no concern in one's day to day use of electricity in the home.

-- Leon Sisson
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Champipple
Master Marine Consultant

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USA
6855 Posts
Response Posted - 05/07/2006 :  16:28:53  Show Profile  Visit Champipple's Homepage
You can get that at amazon via a link on our page and the association will get a bit of a cickback.
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dlucier
Master Marine Consultant

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Virgin Islands (United Kingdom)
7583 Posts
Response Posted - 05/07/2006 :  16:51:33  Show Profile
The 30A dock outlet is the rated capacity of the circuit. If your charger uses 5A, then you have 25A leftover to plug in something else.
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Notice: The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.