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Thread: Boat Dual Battery Setup
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03-22-2004, 12:27 AM #1Junior Member
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- Jan 2004
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- Gridley, CA
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Boat Dual Battery Setup
I want to run two batteries in my Outback LS. Besides two batteries, what else will I need and how should I hook everything up? I want to have the main battery for the boat and all its accessories besides the radio. I want the second battery for the radio, amps, speakers, subs, etc. I was thinking by running two batteries, I would never be stuck out in the middle of a lake with a dead battery because I played my stereo too long while just chillin'. Any help would be great. Thanks.
Jonathan And Andrea Smith
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03-22-2004, 11:24 PM #2Brian Raymond Guest
Replying to Topic 'Boat Dual Battery Setup'
JNA. Contact; [email protected], they have the illustations and voltage sensor relay (standard on the Gravity SSV), to meet your needs. Brian Raymond
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03-24-2004, 11:28 PM #3Member
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- Dec 2003
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- Seattle,Wash.
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Replying to Topic 'Boat Dual Battery Setup'
Brian,
I was at our local Moomba dealer today and I asked there parts department for the Voltage sensor relay. They said I needed a Battery Isolater. Is this the same thing?
Thanks
Larry
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03-25-2004, 10:03 AM #4Member
- Join Date
- Aug 2003
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- Canada
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- 61
Replying to Topic 'Boat Dual Battery Setup'
I came across this page discussing a battery isolator for an RV: http://www.geocities.com/harald_nancy/isolator.htm
This would allow running accessories from only one battery but would let the other (starting) battery kick in when required. Both batteries would receive a charge from the alternator.
I am not suggesting using this particular product however I felt there was some good information there.
I also recall reading about a voltage sensor to be used on single battery systems. It would shut down completely if the battery was getting low enough to risk not starting. I will do some more homework on this.
Having two batteries would seem like the ideal solution. However batteries are a high maintenance/failure items in the marine setting. Two batteries means you now have two to service/replace.
Tonyboomerang
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03-25-2004, 03:12 PM #5Senior Member
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- Mar 2004
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- Wylie, Tx.
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Replying to Topic 'Boat Dual Battery Setup'
I had another battery and selector switch installed on my 02 LS last season with a 650 watt 4 channel amp and tower speakers. I have a total of nine speakers one of which is a 10" sub under the drivers console. I have found that running the stereo almost all day will not completly drain the battery and my amp will stop working if it gets too low. The way I discovered it was purely by accident as my stereo would come on but there was no sound. This was after I had started the boat on the same battery, so there is enough juice to start the boat, just not enough for the amp. If one gets low, I just throw the switch to the other one, but the momentary loss of power erases my presets and gain.
MedicMedic151
06 Mobius XLV
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03-25-2004, 05:32 PM #6Junior Member
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- Jan 2004
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- Gridley, CA
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Replying to Topic 'Boat Dual Battery Setup'
Hey Medic151,
Is there anyway you can take a picture of your setup and email it to me explaining everything? Email is: [email protected] or you could just post everything here. ThanksJonathan And Andrea Smith
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03-25-2004, 05:39 PM #7Senior Member
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- Mar 2004
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- Wylie, Tx.
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Replying to Topic 'Boat Dual Battery Setup'
I'll see if I can get a digital camera and send those to you. Mine is on the blink currently, but I'll see if I can do it over the weekend. I'll let you know something.
MedicMedic151
06 Mobius XLV
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03-25-2004, 07:03 PM #8Junior Member
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- Jan 2004
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- Fairfield, ca
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Replying to Topic 'Boat Dual Battery Setup'
Go to Costco and purchase their largest marine battery for $122. It has about 35% more power than the stock one. I am running 12 speakers. Two are powered bazooka tubes and an amp for my four tower speakers plus a six light bar. Never have had a problem. I can run the sound system all day. Never have had a problem.
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03-26-2004, 07:11 AM #9Junior Member
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- Oct 2003
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- Wisconsin
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Replying to Topic 'Boat Dual Battery Setup'
Jon
Take a look at WestMarine.com, they sell a battery combiner "model 143268" Cost $80.00. It is a simple combiner with a couple of leads but it will take over the monitoring of your batteries. It will combine the two for charging and isolate them when the voltage drops from running your stereo. They also have a great diagram in the package for a triple on/off switch setup. This is just another way of many that you can run dual batteries. If you are interested I can email you more details.BlueMoomba
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03-28-2004, 12:13 PM #10Senior Member
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- Mar 2004
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Replying to Topic 'Boat Dual Battery Setup'
I still am working on getting the pic's of my setup. I am at work today and won't be off till 0700 monday. I'll see if I can get them them.
MedicMedic151
06 Mobius XLV
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