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In responding to a post on how to connect a relay between 2 batteries, someone stated to run a wire from the alternator, to the relay, then to the back batteries. Is this correct? The instructions that came with mine stated to connect the front battery to one post and the other(s) to the second post.
Are there any advantages/disadvantages to including the front battery or not? All I can think of is that the rear batteries will suffer a drain when starting the car, because the true ignition wire is on in the start position. Maybe this alone is reason not to link the front battery to the ones in the rear in a dBDrag-only car.
------------------ 1-2 Woofer Extreme in a highly modified Dodge Omni...Don't bump your head on the steel headliner, and don't even ask how much the 1-3/4" MDF wieghs!
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Not having dealt personally with relays/solenoids for this type of use I would say that by connecting the rear batteries directly to the post where the alt. attaches and connecting the front battery to a seperate post would be correct. This would isolate the front battery and not allow it to be drawed upon to provide current for the amps, yet would still allow it to be charged by the alt. If this thinking is wrong would someone please speak up so both the natural and myself aren't sitting here like idiots about to blow our cars up.
Craig
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Posts: 1390 | From: Clayton, NC USA | Registered: Feb 2000
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I was thinking that including the front battery would be good for now because my bank of batteries at the rear is not as large as I would like it to be(needs a deposit?) and the front battery might add a little current during moments of high demand(BUURRP!).
Anyone else?
------------------ 1-2 Woofer Extreme in a highly modified Dodge Omni...Don't bump your head on the steel headliner, and don't even ask how much the 1-3/4" MDF wieghs!
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hey I have 5 optima red tops and they and all the + and - are hooked up there is one in the front and 4 in the back man I didnt change anything and it qorks fine I can slam my amp and the voltage dosent go below 12v but it will recharge in about 10 seconds and as for the car starter killing the batts I have not had any problem with that ps I want to check out the car sometime allen and I would like to see it some time ps if you need anything remember I have mad hookups in buying stuff 910 488 2500 Bobby Knight
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I just left the stock battery hookup as it was - to the output stud on the back of the alternator. However, I did add another 8g wire. The factory alt. to battery wires are weak at best. I then added another 8g wire to that same stud which goes to one of the lugs on the solenoid. And then the other lug on the solenoid goes to the new stereo battery. With this setup both batteries see roughly the same charge voltage which may help battery longevity. You can also hook up a momentary button to the coil terminals on the solenoid to manualy activate the solenoid. Good for those super cold mornings. Although I never had to use it, at least it's there. HTH Ed
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