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Go Back   Hummer Forums by Elcova > Hummer H2 Discussion Forums > Technical Discussion and Customizing your H2

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  #1  
Old 12-20-2008, 04:08 AM
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Default Re: Optima Battery That Fits?

you can jam 2 regular size yellowtops sideways there and link'em together...more capacity than the biggest single battery.
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  #2  
Old 12-20-2008, 08:08 PM
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Default Re: Optima Battery That Fits?

you can indeed do that ,and if you do it right it will give you lots of juice. I did a custom instalation for a customer where I used 2 industrial optima blue top batterys and a up graded alt . now he has powet for his off road lights,4 amps,and winch . you can do almost anything with enough money .
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Old 12-21-2008, 08:05 PM
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Default Re: Optima Battery That Fits?

thanks for the tip on the dual setup. do you have photos and the battery model number you used?
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Old 12-22-2008, 06:18 PM
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Default Re: Optima Battery That Fits?

as far as ready to go ,If your battery is dead after a month of sitting you may have a drain on the system ,or a bad battery . a good standard group 79 or optima battery will hold a charge and start a vehicle after 2 months of sitting no problem .
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Old 01-04-2009, 11:42 PM
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Default Re: Optima Battery That Fits?

Quote:
Originally Posted by IRA51
as far as ready to go ,If your battery is dead after a month of sitting you may have a drain on the system ,or a bad battery . a good standard group 79 or optima battery will hold a charge and start a vehicle after 2 months of sitting no problem .


Been through the drainage thing with testing ang meters left hooked up for days at a time and no one here will own up to the bad battery but will exchange it (2 to 3 times a year)This has happened with 1 car and 2 trucks and there was never any foundings but after 6 days a dead battery.

With the Optima we got in October, I just went 4 weeks and in some freezing temps during that time and the car cranked right up.
We will be replacing the HUMMER's next time to an Optima too.
Needless to say this has been a great Battery so far and I will reccomend them to others.
~Richard
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Old 01-05-2009, 05:27 PM
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Default Re: Optima Battery That Fits?

I just replaced my optima battery had it 2 years and a month, if I let the hummer sit more than 4 days it would be dead, took it back to advanced they replaced it for free......bad battery!
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Old 01-06-2009, 07:29 AM
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Default Re: Optima Battery That Fits?

Quote:
Originally Posted by Rockyot
thanks for the tip on the dual setup. do you have photos and the battery model number you used?
http://www.elcovaforums.com/forums/s...301#post502301
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