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Discussion Starter · #1 ·
well first off the volt mettere gauge on ym car has been droping...usualy resting below the 14volt range....i tested it with a multi meter...12.4 with car off 14.2 while engin is runing and 14.2 still at 2-3k rpms

with headlights on it drops to 14.1

all that aside my altenator wines (ocasionaly) it hasnt done it at all today sept in the morning....my light dim severly when my bass hits and my volt metere jumps (somtimes resting in the red for awhile)

from what i red a solution would be a better battery (since iv learned caps dont help much acording to diyma)...now the guy at the store and audio store instantly say yellow top refering to optima....and although i have no problem buying that....

is there anorther interstate battery just as good or stronger for the same/less price?

if so what so good about them other than the fact optima's are leak proof and vibration resistant


if you need to know my amps is 1200rms @ 2 ohms (kenwood excelon x1200m) and im running to SVC 4ohm Dayton MkIII's rated at 500rms in paralled thus a 2 ohm load...

my altenator i belive stock is around 100amps? (not fully sure...my car is a 1996 pontiac bonneville...3.8L engin NO super charge) ive read to do the big 3 before upgrading alt..that is running 0 gauge wire (forgot second step but i think i did it) and upgrading stock BAT....

im curently running a farm fleet? no maintenece battery....all i know there are numbers on it i can get if any one needs them...

so in summary
is the battery my problem? will upgrading solve my probs?
if not, what should i do? (no running the subs at an 8 ohm load IS NOT an option)

edit: i do not hav 0 gauge wire running im using 4 gauge with an 80 amp maxi fuse using a big hefty kicker fuse block
 

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I spoke with interstate battery rep/salesman/delivery driver about this. I was told to that using the Optima under the hood as a main car battery is pointless, sorry I don't remember his reasoning and it made since so I didn't argue. However he said using Optima as a second battery is a better option. He also had Optima batteries (Interstate also sells Optima)on his truck so wasn't like he wanted to sell a interstate.
Not my reasoning but I bought what he was selling..
KEN
 

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Its how stable the lead plates are inside the batteries that make the diff. Your higher end lines of batteries will have reinforcements sort to speak to keep the plates from moving. Moving plates shortens performance and life. Low grade batteries if jerked around enough can actually have plates touch each other, basically causing and short and is what is often called a dead cell. And regardless of the name, as with many things there are only a couple actual companies that make them. Most are Exide and Interstate.
 

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If we keep telling everyone to buy the Die Hard Platinum then Sears may raise the price lol
 

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I abused the living hell out of an Optima once, and I've used them many times since then because of the overall toughness it had.

Exhibit A:

I had a Nissan Stanza, a vehicle that killed alternators for some gremlin reason. They would die at the regulator, so I would end up with overpowered electrical systems, pushing many more volts than it should. The rotten egg smell was the only indicator, as the battery vented off the increased pressure. I think I replaced three of them from Autozone thanks to their lifetime warranty, and I think the third one actually worked in the end. This whole time, my Optima took a hell of a beating, but even with a damaged exterior (slightly melted from the heat and pressure), the battery performed admirably.

Would others do as well? I don't know for sure, but I do know that I sold Diehard batteries for years as a SEARS / NTB Tire service writer, and they didn't take that type of abuse so well.
 

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Ok I have a question I either didn't see or over looked. How is your belt? You said it squeaks from time to time. That means either one of a few things.

If the belt is glazed that can cause a squeek or if the belt is simply cracked. Another common problem is if the ALT is kind of old the pulley may be bad as well. If it's a V belt then it needs to ride on the edges of the V not the bottom


What kind of noise is it? If it's more of a grinding noise your bearings may be going out.

Don't just assume you need a battery because of a voltage drop like that. Even though the Alt is putting 14v could just be a belt.

Again if it were me. I'd check the belt first.

Oh and another common thing to look for that will confirm a bad battery is if you see any kind of reside coming from the terminals. I have an optima red top and it had some residue from the un used side posts which meant it was leaking and needed replacing.
 

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Discussion Starter · #12 ·
Ok I have a question I either didn't see or over looked. How is your belt? You said it squeaks from time to time. That means either one of a few things.

If the belt is glazed that can cause a squeek or if the belt is simply cracked. Another common problem is if the ALT is kind of old the pulley may be bad as well. If it's a V belt then it needs to ride on the edges of the V not the bottom


What kind of noise is it? If it's more of a grinding noise your bearings may be going out.

Don't just assume you need a battery because of a voltage drop like that. Even though the Alt is putting 14v could just be a belt.

Again if it were me. I'd check the belt first.

Oh and another common thing to look for that will confirm a bad battery is if you see any kind of reside coming from the terminals. I have an optima red top and it had some residue from the un used side posts which meant it was leaking and needed replacing.
well im by no means NO mechanic..i barly no how tyo check wht fluids when..and eve nthen...its a learning process along with my sound system (but i know more about electrical systems than cars to begin with =\)

anyways the belt has...."polishd" spots on it its dull and polishd.......the underside of the belt has ridges in it there are noticible cracks on that side...

and i didnt say squeaks..it screams or wines......idk how else to put it...its this really high pitch eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

or iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii....but NOT AND I MEAN NOT THE KINDA OF NOISE U GET FROM A GORUND PROBLEM....this is much more hit pitchd and quiter

anyways i can take pictures of my belt if u want or pictures of anything tbh...
sry havnt posted in a few days/week was outa town....its 3:43 atm i work at 5 but im on a short shift so i should be home around 7-830 ish
 

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Honestly man I don't think a battery will solve your issues. Those batteries will last longer in your vehicle but if your alt is not putting out enough current to keep up with your system no battery will ever help that. I would look at how much power your system is consuming relative to how big your alternator is. If you want a tough battery that will last a real long time then yeah get yourself an optima or odyssey, just don't think it will solve your power issues or alt whine.
 

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Discussion Starter · #14 ·
Honestly man I don't think a battery will solve your issues. Those batteries will last longer in your vehicle but if your alt is not putting out enough current to keep up with your system no battery will ever help that. I would look at how much power your system is consuming relative to how big your alternator is. If you want a tough battery that will last a real long time then yeah get yourself an optima or odyssey, just don't think it will solve your power issues or alt whine.
thats wht i thought but suposedly it all can help (alt supose to be last thing or somthing acording to peeps here)

and my alt i belive is 100 amps or 120

my amps is a kenwood excelon x1200m rated 1200rms...and i belive at FULL BORE thats ~ 157amps of power....seing as its not going to be going full bore all the time nor have i ever even turned it up that loud.....but u got to take into account the cars usage of electric curent too so i more or less have 50-60 amps to play with...im sure its much to small but i brlive i need a cs44 or cs144 or w\e.....a 240amp alt was like $380 of ebay kinda pricy
 

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anyways the belt has...."polishd" spots on it its dull and polishd.......the underside of the belt has ridges in it there are noticible cracks on that side...
That right there is all all i really needed to know. A simple test is to get a piece of something 1 inch in length and put next to the belt if there are more than 4 cracks per 1 inch, I pretty sure it's 4, it's usualy considered bad and needs replaced. Also if you see any cracks all the way thorugh the same can be said.

Basicly the most common cause of alternators or electrical systems in general for having problems IS the belt and by far the cheapest. I'd try a decent quality belt and see what you get.

The reason the thing squeals is because there's just not enough tension on it to keep it pressed against the pulleyies. The squeel or whatever you wanna call it you hear is a result of the belt slipping, which is ok and it WILL happen no matter how good or new the belt is. It's supposed to slip a tiny amount and usualy will. But if it's strarts making sounds, replace it. If it keeps making sounds you may need to replace an idler or tensioner of some sort.

If all this is out of your scope you may wanan consider seeing an auto repair specialist a buddy you may know or something to help you out on it.

Best of luck!

EDIT: And if you have more than one belt, you mid as well replace them all while your in there Eventually they will wear out and if your having someone replace it usually they only, atleast a good one should only, charge for one install.




Also do we have any kind of tutorial in regards to these kind of porblems??? If not this might be a great candidate or I could write one up since the electrical systems health has a direct impact on the quality of the sound esp in larger audio systems that put a very hefty demand on the system.
 

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"remember ads lies, Specs Have to truthful. "

Did someone on an AUDIO site really say that specs have to be truthful? Really? hahahahahahahahaha
 

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well first off the volt mettere gauge on ym car has been droping...usualy resting below the 14volt range....i tested it with a multi meter...12.4 with car off 14.2 while engin is runing and 14.2 still at 2-3k rpms

with headlights on it drops to 14.1

all that aside my altenator wines (ocasionaly) it hasnt done it at all today sept in the morning....my light dim severly when my bass hits and my volt metere jumps (somtimes resting in the red for awhile)
Yeah you need a new battery. My battery sit at 12.8 with the car off and on 14.4.
How much money are you willing to spent? Optima works great! I had one in my car. I still have it around. We want more help PM me I'm willing to help you out.
I have a stock alt that put out 80amp. My battery is a kinetik HC800 and my system rms at around 800. I have no dimming.

Are yours wines coming from the speaker or what?
 

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I had an Optima in my Corvette that gave me nothing but trouble. Only lasted 10 months, and was dead half the time. I don't drive the car every day, and if it sat for more then a week, it would go dead. Took it back to Autozone, and got one of their batts, and have had no problems for almost a year.
To the OP, have you done the big three?
 
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