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Dual alternators or dual battery isolator

 
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RedK9



Joined: 02 Aug 2019
Posts: 6
Location: Houston, Texas

PostPosted: Sun Aug 18, 2019 5:35 pm    Post subject: Dual alternators or dual battery isolator Reply with quote

I recently purchased a high amp (250 amp) alternator as well as a 12 volt 100Ah SLA AGM battery for powering most all of my aftermarket gear.
Originally I was planning on getting a dual battery isolator until a friend mentioned dual alternators. I was not aware that you could have dual alts until he mentioned it.

So now my question is which way is best or easiest.?
I need some Pros and Cons here..
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smj999smj
Site Admin


Joined: 22 Jan 2012
Posts: 5362
Location: Prospect, VA

PostPosted: Sun Aug 18, 2019 9:15 pm    Post subject: Reply with quote

If you don't get an answer here, you might try contacting the folks at Crutchfield.com.
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2006 Pathfinder LE VQ40DE AWD, aftermarket radiator, Airlift 1000's, Bilstein HD rear shocks, Doug Thorley shortie headers and mid-pipes, Magnaflow 12580 muffler, aFe Momentum GT CAI w/ dry filter, XTP plenum spacer, Superchips Flashpaq tuner
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NWPathfinder



Joined: 24 Feb 2019
Posts: 24
Location: Vancouver Island

PostPosted: Thu Sep 05, 2019 9:39 am    Post subject: Reply with quote

Yeah a lot of guys that do sound competitions use dual Alternators to keep the current high while they are competing. I think you'd just need the Isolator to run a dual battery setup. My question is. Where you mounting the second battery???
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2001 Nissan Sentra -- Kids Car
2009 Nissan Pathfinder SE -- My Car -- So far, Rad Bypass, Aftermarket backup Cam, rigged for Towing.
2012 Nissan Sentra S -- Wife's Car

Converting all of my Cars to Nissan, one vehicle at a time. I apologize for all my years as a Domestic Car driver, I promise it won't happen again.
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RedK9



Joined: 02 Aug 2019
Posts: 6
Location: Houston, Texas

PostPosted: Thu Sep 12, 2019 5:46 pm    Post subject: Reply with quote

Sorry for the late reply, I have seen posted on a few forums where they moved things around under the hood so they could have both batteries mounted side by side under the hood. But that looked like a lot of work and since I pose very few mechanical skills I decided it would be better behind the back seats near the factory Bose subwoofer..
I am not into sound competitions, but I do care about good sound in my vehicle. I am looking into a two to three amp setup for my vehicle. A four channel amp to power the front components and rear full range coaxials. Also two sets of subwoofers in the rear, two 12 inch subs in a acoustic suspension sealed box as well as two 12's in a ported box. Also I am an Amateur radio operator with a license from the FCC so I will have several two way radios mounted in the front cab area.
I am also into camping and backpacking, so I will have several LED light bars mounted on the roof and bull bar. I still have lots of homework to do before deciding on either a dual battery isolator or a dual alternator setup..
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NWPathfinder



Joined: 24 Feb 2019
Posts: 24
Location: Vancouver Island

PostPosted: Thu Sep 19, 2019 6:10 am    Post subject: Reply with quote

Wow, I can not wait to see pictures of all of this! Sounds awesome! I'm sure it will Sound awesome as well!!!
_________________
2001 Nissan Sentra -- Kids Car
2009 Nissan Pathfinder SE -- My Car -- So far, Rad Bypass, Aftermarket backup Cam, rigged for Towing.
2012 Nissan Sentra S -- Wife's Car

Converting all of my Cars to Nissan, one vehicle at a time. I apologize for all my years as a Domestic Car driver, I promise it won't happen again.
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View user's profile Send private message
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