Wiring Wind Generator to House or Starting Battery - SailNet Community

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Go Back   SailNet Community > On Board > Gear & Maintenance > Electrical Systems
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Old 05-17-2010
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Wiring Wind Generator to House or Starting Battery

Hey All.

I have an Air-X Wind Generator that was previously wired to my battery switch.

I think this is a mistake and have resolved to wire it directly to my batteries as the manual suggests.

Hoping the community can weigh in on whether you think it better to wire the Air-X to the starting batteries or to the house batteries.

Shannon Norrell
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Old 05-17-2010
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In general, and without reference to your boat's setup which you didn't describe, it's best to wire ALL onboard charging sources to the house batteries.

Then, the preferred method these days is to use a little device like an EchoCharge or DuoCharge to bleed off a little charging current from the house batteries to maintain the start battery.

The start battery requires VERY LITTLE charging, in typical setups.

Bill
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Old 05-18-2010
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So to add to my posting, I have a Xantrex Prosine 3000. I think I need to wire my AirX directly to the House Batteries and not anywhere else on the circuit. Do you agree?
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Old 05-18-2010
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Quote:
Originally Posted by webdood View Post
So to add to my posting, I have a Xantrex Prosine 3000. I think I need to wire my AirX directly to the House Batteries and not anywhere else on the circuit. Do you agree?

Shannon....

Without further information it's hard to say. In general terms, yes, it would be good to connect a wind generator direct to the house batteries, with an appropriate charge controller AND appropriate CPD (fuse or breaker) in line.

Please understand that what you are asking seems like a simple question to you, but it's really not so simple. Your wind generator is one component part of a complex electrical system on your boat. Other parts might include the Xantrex Prosine 3000 you mentioned, plus the battery banks (size, type?), the switches and CPDs, the engine alternator, solar panels, generator, battery monitor, etc., etc. How they are currently wired together is very important. Also important is the intended use of your boat...mostly at dockside, mostly at anchor, actively cruising, etc.

In my post above I outlined the preferred way of connecting things these days, but from what you've said so far I have no way of knowing how your boat is currently set up. Nor is it possible to responsibly recommend any changes without knowing more.

Bill
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Old 06-03-2010
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I have an air x wind generator and I hooked it up to the house batteries so it is always reading the condition of those batteries and charging accordingly. I also have a battery switch and when in the "ALL" position the starting battery is brought into the equation. All three batteries are the same and were purchased at the same time. I believe what happens in the all position is that the house batteries will bleed off to initially to the house battery if lower in power and the generator will read and charge battery # 2 so that when all three are charged the unit will shut off as they all seek the same level when hooked together.

Michael
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