Sterling Alternator Regulator

[Wiggo]

I fitted one of these gizmos last year, and I swear by it. I'm getting one fitted to the new boat, but the question is, is it worth fitting one per engine?

Anyone done this?

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[cngarrod]

Hi Wiggo,

Have just bought one of these - i want to use it to charge 2 batteries - will i need a splitter as well?

Cheers,

C

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[ccscott49]

You can get one that will control two alternators on seperate engines, no need for splitters etc.


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[Wiggo]

OK, a bit of clarification, Craig. If you have one engine and two batteries (i.e. engine and domestics), then you need a splitter diode pack (NOT one of the cheapo split charge relays from the caravan shop). The alternator regulator can deal with that happily.

I have twin engines, and five batteries in two banks - I'm putting a regulator on the engine that charges the domestic bank, but I don't know if it's worth putting one on the other engine.

The batteries seem to be in a bank of three and a bank of two, but I'm not sure till I get the wiring diagram what each one does. Actually, anyone here know? Sealine F37?

Where do I get a twin one (i.e. one box that can control both alternators and both banks)?

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[djefabs]

Wiggo
I can't be sure but my F37 has 2 battreys for the port engine (only), 3 battreys for the domestic/starboard engine, and a further single under the front berth for the bow thruster and windlass. Will be sure if I can get my hands on a wiring diagram.
Derek

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[Teddy]

I use an Adverc controller for my Sealine 330. 1 unit controlling both alternators through 2 X 3 way diodes. This way all 3 battery banks are fed from both alternators, including the front bow thruster battery. Benefits are that both alternators will output into the low bank (usually the domestic) and that when running on one engine, all batteries are still charged. A temperature sensor on the domestic bank keeps the voltage controlled without excessive gassing.

Works brilliantly for us on the river (Thames), allowing us to stay several days without running engines, keeping the fridge and telly going etc.

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[cngarrod]

Cheers Wiggo - i thouht that might be the case - but woudl rather check with one that has done it than cause a melt down!

Wasnt going to buy a cheapo splitter from the caravan shop (despite the marina manager talling me that was all i needed!) - the Sterling ones arent that pricey, so will opt for that one!

Cheers,

Craig.

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