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Discussion Starter #1 (Edited)
Adding a Second Battery


upgrade.JPG


i dont want to buy a cap because they are useless....
i m only ganna use a 4 gauge wire...
let me know if this is ok ....so i can order it
 

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You're asking your alt. to do double the work powering both batteries. Imo that's not a good idea. You need to get a 2nd alt or just a single high output one.

Sent from my Desire HD
 

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Discussion Starter #3
what if i i just get a 600 watt baterry...and add cap??

or lower watt battery....

would it hurt??
 

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Get two batteries it's not gonna strain your alternator.. Running big amps without a cap or a extra battery will slowly ruin ur alternator. However its a good idea to run 2 batteries that are the same. I run 2 hc600s with no problems. They've been in for about 3yrs
 

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For those who are going for sounds systems with a bang, IMO caps are utterly useless unless your getting high ends $300+, rather get a second battery or performance alternator. To answer OPs question, no you don't need an additional alternator or performance alternator to run two batteries efficiently.
 

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Discussion Starter #6
i have decided to the big three upgrades....but my question is can i use 100 amp in my inline fuse altermnato + battery...what is the alternator amperage??..
 
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