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I have a 99 sundancer 270 with twin 4.3. There are two
I have a 99 sundancer 270 with twin 4.3. There are two isolator (I believe that is what they're called) switches wired to batteries. One switch is 1/2/both/off while the other is main on/off. There is… read more
Yachtwork
Yachtwork
Owner Team Yachtwork
Technical or Trade School
2,593 satisfied customers
I have a 1989 wellcraft gran sport is the boat factory wired
I have a 1989 wellcraft gran sport is the boat factory wired for a generator … read more
Yachtwork
Yachtwork
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I have a 35 foot boat built with 3 250hp Mercury Vorado. I
I have a 35 foot boat built with 3 250hp Mercury Vorado … read more
Charles
Charles
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Dual Battery switch wiring as Tan described 6 years ago but
Dual Battery switch wiring as Tan described 6 years ago but with two F150 yamahas … read more
Jason
Jason
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Vocational, Technical or Trade School
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I have twin Volvo Penta 380 on my Chaparral 327ssc. After
I have twin Volvo Penta 380 on my Chaparral 327ssc. After putting the batteries back in from the winter I am getting low voltage on the steering actuator. I have 6 batteries- a port ,a starboard, two … read more
Joe
Joe
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Vocational, Technical or Trade Scho
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2009 3360 regal with twin Volvo 5.7 engines. Port engine will
2009 3360 regal with twin Volvo 5.7 engines. Port engine will would not start replaced ignition 20 amp breaker. Engine start correctly. I now have both alternators not producing 12 volt power. I am op… read more
Jason
Jason
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Vocational, Technical or Trade School
22,804 satisfied customers
What was the original battery set up on a Sea ray 2004
What was the original battery set up on a Sea ray 2004 Amberjack with three batteries and two switches 2 cranking and 1 house ? Bought the boat used with 3 cranking bateries 2 of them are bad I have 2… read more
Jason
Jason
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Vocational, Technical or Trade School
22,804 satisfied customers
Wellcraft 290 coastal. Has 2 battery's starboard starts Starboard
Wellcraft 290 coastal. Has 2 battery's starboard starts Starboard motor and is also house battery. Port battery is only for starting Port eng. Each battery has a factory on/off switch only. NOT 1/2/bo… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,409 satisfied customers
hello tan, I have a twin 1994 cobras 50facpmd, I would like
hello tan, I have a twin 1994 cobras 50facpmd, I would like to add a house battery. I have two perko battery switches both have a selector switch with options off,1,2 and both. I have an alternator on… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,409 satisfied customers
I have a 1995 Regal 292 with twin engines. in the charging
I have a 1995 Regal 292 with twin engines. in the charging system are a c-charger, divi charge (battery isolator), 3 batteries. 1 for house and one each for P and S starting. Does the divi charge cont… read more
Jason
Jason
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Vocational, Technical or Trade School
22,804 satisfied customers
SirI have been off my boat for 3 months I come back and find
Sir I have been off my boat for 3 months I come back and find the following. I have a Link 20 attached to my port and starboard batteries The port shows green lights for reset,data,lock the starboard … read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,409 satisfied customers
Another question for cummins dr Boat 34 twin Cummins
Another question for "cummins dr": Boat: 34' twin Cummins diesel 250 hp. I am unable to get the port engine to charge the "house" bank of batteries. This has been going on for some time. Over the past… read more
Yachtwork
Yachtwork
Owner Team Yachtwork
Technical or Trade School
2,593 satisfied customers
I have a 2002 Searay Amberjack 290, and I need to know the
I have a 2002 Searay Amberjack 290, and I need to know the right way to replace the starter battery for the starboard engine. It has twin Mercruiser 5.7 liter V8s with Bravo III drives. There are 3 ba… read more
Jeremy R.
Jeremy R.
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I HAVE A 1998 37 SEARAY WITH TWIN 7.4L MULTIPORT FUEL INJECTED
I HAVE A 1998 37' SEARAY WITH TWIN 7.4L MULTIPORT FUEL INJECTED ENGINES.I'VE HAD THE BOAT A LITTLE OVER A YEAR AND THE ENGINES HAVE BEEN RUNNING GREAT. THE VOLT METERS HAVE ALWAYS READ A LITTLE HIGH W… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,409 satisfied customers
I am installing a 2,000 watt pure sine inverter and a bank
I am installing a 2,000 watt pure sine inverter and a bank of (4) 6 volt batteries to run some items on my boat. Batts will be hooked up in series to provide 12 volys. My inverter has an internal char… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,409 satisfied customers
We have a 1980s vintage 33 ft, twin engine Cruisers Inc. boat
We have a 1980's vintage 33 ft, twin engine Cruisers Inc. boat without manuals. We are having problems understanding the charging system. It appears that we have both engines alternators connected to … read more
ROCKET
ROCKET
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Vocational, Technical or Trade Scho
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I have a 1999 Chaparral 24ft cruiser with a Mercrusier Bravo
I have a 1999 Chaparral 24ft cruiser with a Mercrusier Bravo 3 angine and with factory installed shore power. I am unable to keep a charge on either battery, even when the boat has been on shore power… read more
Master Tech
Master Tech
Service Manager/Technician
Vocational, Technical or Trade Scho
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I am trying to find out how to wire a houseboat. The idea is
I am trying to find out how to wire a houseboat. The idea is to have as much 12v as possible (eg lights and fridge) but want to include 230/240v appliances such as a washing machine, TV and games cons… read more
Yachtwork
Yachtwork
Owner Team Yachtwork
Technical or Trade School
2,593 satisfied customers
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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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