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    Icon6 Need help with Battery comparison

    I can get this for $105
    Duralast/Marine battery - 12 months free replacement (27DP-DL) | | AutoZone.com

    Weighs 54 lbs
    CCA 800
    CA 1000
    Reserve 180 minutes

    or


    I can get this for $100
    http://www.americanlisted.com/rhode_island_39/cars_2/exide_commercial_battery_led_acid_battery_4d_model _no_com-4d-p_new_19006_14332811.html]Exide Commercial Battery Led Acid Battery 4D model no. COM-4D-P new (19006) for Sale in Rhode Island Classifieds - AmericanListed.com[/COLOR]

    This one weighs close to 100 lbs
    CCA 1000
    CA 1200
    Reserve 320 minutes


    Neither are sealed. I'm trying to see if getting this Exide battery would be worth the extra weight. It's about twice as heavy as the Autozone Marine Batt.

    I know I need a gel batt for secondary batt like Exstatic, Kinetik or XS Power, but am runnin a little low for the next month or so.

    If all things are the same I'd rather cut the weight. What do yall think???



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    Re: Need help with Battery comparison

    Id go with the exide if you can fit it. The exide is rated a little over 200ah, the duralast is a little over 100ah. But the exide can be found new for right around $200




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    Re: Need help with Battery comparison

    Quote Originally Posted by Dub7sonoma View Post
    Id go with the exide if you can fit it. The exide is rated a little over 200ah, the duralast is a little over 100ah. But the exide can be found new for right around $200
    How'd you find out the AH on those? Thanks



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    Re: Need help with Battery comparison

    Quote Originally Posted by jkok7 View Post
    How'd you find out the AH on those? Thanks
    multiply the reserve capacity (rc) by .7 and it gets you really close. The duralast is 180*.7= 126ah and the exide is 320*.7=224ah




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    Re: Need help with Battery comparison

    Quote Originally Posted by Dub7sonoma View Post
    multiply the reserve capacity (rc) by .7 and it gets you really close. The duralast is 180*.7= 126ah and the exide is 320*.7=224ah
    Also if I don't play my system parked and always in drive, how much does that number matter?

    Not being funny, it's an honest question.



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    Re: Need help with Battery comparison

    Quote Originally Posted by jkok7 View Post
    Also if I don't play my system parked and always in drive, how much does that number matter?

    Not being funny, it's an honest question.
    The same parked as driving. The only difference is when you are driving your alternator will be putting out more with higher rpms.




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    Re: Need help with Battery comparison

    Quote Originally Posted by Dub7sonoma View Post
    The same parked as driving. The only difference is when you are driving your alternator will be putting out more with higher rpms.
    Ultimately the Exide will be giving alot more power to my amps than the duralast.

    Subs are running off a Mmats D3500.1 wired down to 1 ohm.



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    Re: Need help with Battery comparison

    Correct. Almost double




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    Re: Need help with Battery comparison

    Ok, but when the car is running, isn't the alternator charging the amp? What does the higher ah rating mean for a car while it's driving?




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    Re: Need help with Battery comparison

    When the car is running the alternator is charging the batteries and running the amp to a certain extent. Lets say your stock alternator has an output of 100 amps cold. Your car is going to use a lot of its output just to run. Once the amp draws more current than the alternator has left to put out, it pulling from the batteries




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    Re: Need help with Battery comparison

    Quote Originally Posted by Dub7sonoma View Post
    When the car is running the alternator is charging the batteries and running the amp to a certain extent. Lets say your stock alternator has an output of 100 amps cold. Your car is going to use a lot of its output just to run. Once the amp draws more current than the alternator has left to put out, it pulling from the batteries
    When the amp is pulling power from the battery, does the amp see 14.4 volts or is it seeing 12 volts?




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    Re: Need help with Battery comparison

    Quote Originally Posted by Dub7sonoma View Post
    When the car is running the alternator is charging the batteries and running the amp to a certain extent. Lets say your stock alternator has an output of 100 amps cold. Your car is going to use a lot of its output just to run. Once the amp draws more current than the alternator has left to put out, it pulling from the batteries
    Aight man, I'm about to be running my yellow top up front and this Exide in the trunk off my stock alt which does 105 amps. Will I be okay for a while? I have a Mechman alt comin in couple weeks.



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    Re: Need help with Battery comparison

    Go big or go home... 50 extra pounds won't hurt anything unless you have an obnoxiously small car, ie Geo Metro. Nothing wrong with a Geo Metro though!



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    Re: Need help with Battery comparison

    Quote Originally Posted by jkok7 View Post
    Aight man, I'm about to be running my yellow top up front and this Exide in the trunk off my stock alt which does 105 amps. Will I be okay for a while? I have a Mechman alt comin in couple weeks.
    Don't push it too hard. Just watch your voltage. If its starts to drop, just back off a little bit.




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    Re: Need help with Battery comparison

    Yeah I'll be careful with the gain and volume. Thanks!



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