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multi batteries

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=65256
Printed Date: April 28, 2024 at 9:35 AM


Topic: multi batteries

Posted By: Reeceddogg
Subject: multi batteries
Date Posted: October 29, 2005 at 6:53 PM

i done many searches on here and just want to make sure that when running multiple batteries and isolator isn't necessary, right?



Replies:

Posted By: Alpine Guy
Date Posted: October 29, 2005 at 6:59 PM
right, as long as you have 2 of the exact same battery's off the exact same assembly line during the same time period.

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2003 Chevy Avalanche,Eclipse CD7000,Morel Elate 5,Adire Extremis,Alpine PDX-4.150, 15" TC-3000, 2 Alpine PDX-1.1000, 470Amp HO Alt.




Posted By: bajaclawz71
Date Posted: October 30, 2005 at 12:53 AM

Alpine Guy wrote:

right, as long as you have 2 of the exact same battery's off the exact same assembly line during the same time period.

Also if you are trying to use it as a backup battery than you will want to isolate them. 





Posted By: KarTuneMan
Date Posted: October 30, 2005 at 1:13 AM
Just get an isolator......simple. Eliminate the potential for a problem.  Come-on.........

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Posted By: Mad Scientists
Date Posted: October 30, 2005 at 7:56 PM

If you are using a second battery to run the system with the engine off, then you'd need an isolator. If you believe you need two batteries when the engine is running, then you'd need to try to match the batteries.. but I'd be curious why you'd need two with the engine running.

Jim 





Posted By: Reeceddogg
Date Posted: October 30, 2005 at 9:40 PM
I'm not worried about playing with the system off, i can just start the car. and since i'm buying the batteries at the same time i hope they are exactly the same




Posted By: Reeceddogg
Date Posted: October 30, 2005 at 9:44 PM
Reeceddogg wrote:

I'm not worried about playing with the system off, i can just start the car.

sorry that's playing with the car off




Posted By: Mad Scientists
Date Posted: November 01, 2005 at 6:07 PM

Why do you think you need multiple batteries? What are you hoping to accomplish?

Jim





Posted By: Reeceddogg
Date Posted: November 01, 2005 at 8:27 PM
jus want to make sure i have plenty of power for my system and it doesn't look like just any single battery will do it




Posted By: bajaclawz71
Date Posted: November 01, 2005 at 11:53 PM

Reeceddogg wrote:

jus want to make sure i have plenty of power for my system and it doesn't look like just any single battery will do it

Well the only time that you would be running your system off of the batteries is when the vehicle is off.  A second battery won't do anything for you.  You will need a higher output alternator if you run into too much current draw from your stereo.  Just as a side note a capacitor won't do much if anything either.





Posted By: Reeceddogg
Date Posted: November 02, 2005 at 10:25 PM

. Just as a side note a capacitor won't do much if anything either.

[/QUOTE]
i figured that since after it discharges it'll take a while b4 it recharges therefore increasing the resistance to the amps, right?





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