Dual Batteries?
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Why do you want two batteries?
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Dont waste your time.
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That's a big frickin waste of money and it adds to the complexity of the wiring system, plus it adds unnecessary weight. You would also have to have the other battery hooked to the alternator, obviously, and chances are it's not going to like the added load. Were these people into massive audio systems?
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harwood39 wrote:
ok. So i should just relocate it? and not deal with the dual bats?
yes!why the fuck would you take time relocating the battery to the trunk just to put another one under the hood? (or are you talking 2 in the trunk?)
The reason to relocate is weight distribution and space under the hood....
some people told me
kick them in the forehead... hardyou've also got to remember you'll need a NHRA approved cutoff switch to run on the track....
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People relocate batteries for better weight transfer, but thats for rwd (or AWD I guess) cars. More weight in the back would just mean more wheel spin for you on the launch. Running dual battieries is ubber stupid unless you have a beyond massive stereo, or if you WANT to slow your car down. Don't even touch your battery.
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94NDTA wrote:
People relocate batteries for better weight transfer, but thats for rwd (or AWD I guess) cars. More weight in the back would just mean more wheel spin for you on the launch. Running dual battieries is ubber stupid unless you have a beyond massive stereo, or if you WANT to slow your car down. Don't even touch your battery.People also relocate batteries if they want to attempt to equalize the weight from front to rear...very common in the auto-x world for people w/ FWD cars to relocate batteries to the rear.
Running 2 batteries on a massive stereo will accomplish 2 things and 2 things only. 1. It will increase the amount of time you can sit in a parking lot w/ your key off. 2. It will cause unnecessary strain on your alternator, why you ask? because a battery is an additional load for your charging system, a much more effective way to increase power on demand for a stereo is the use of 1 farad (or larger) capacitors as they are able to charge/discharge rapidly.
If you're going to auto-x then it might be in your interest to move the battery to the rear.
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I'm guessing its because he has it all apart right now so it'd be easy enough to do.
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I run dual batts, and it's no extra strain on the alternator unless the battery(s) are low, It just gives me more reserve for low rpm high amp draw intown driving.
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What wrong with multi batteries?
Get something like thisMulti 3 Battery Isolator 165 amp Car Stereo Audio
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1&item=7950083821&category=33578advance auto parts and autozone in fargo stock dual ones. I think its a great idea to have dual batterys. You can turn you car off and drain off the second battery. Given we live in north dakota. A backup is nice to have! I myself run three I have alot on illegal electronic toys running.
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Ninesecsnake wrote:
I run dual batts, and it's no extra strain on the alternator unless the battery(s) are low, It just gives me more reserve for low rpm high amp draw intown driving.The laws of electronics say that you are wrong since a battery is in a constant state of depleting its reservoirs by trying to stay fully charged (batteries are energy PRODUCING devices, not energy STORAGE devices.) I'm not saying that its a HUGE strain on the charging system, but I guarantee you that that it is drawing at least a couple of amperes from your alternator. Now I agree that there are certain advantages (as discussed by me above) that may in some cases cancel out the negatives, but don't think that adding a second battery to your stereo system will help w/ dimming headlights/interior lights because they won't...at least not for long. Capacitors are the way to go there.
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There's no such thing as needing reserve, other than short powerful bursts created by a big system drawing a lot of current (the why capacitors are cool), the alternator produces as much energy is needed by the system by creating resistance against the motor. It is rpm independent for the most part.
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I had to relocate my battery because it was in the way of my IC pipeing. Also cleaned up the engine bay and gave more room to other things.
I say relocate it. It's not time consuming or spendy. Maybe spend $20 and an hour of your time. And it's not going to add that much more weight to the back. Just compensate and gut the trunk and back seats.
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