| Would just using a Optima Car Audio battery under the hood maybe put an end to my lights dimming?

Would just using a Optima Car Audio battery under the hood maybe put an end to my lights dimming?

freethinker asked the question:


I have an ‘03 Acura TL Type-S with a JL Audio 13W7, JL 1000/1, and a Jensen VM9312 running off of a standard/basic battery up front. If not the car audio specific battery shouldn’t just a yellow top or red top do it?

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Comments

6 Responses to “Would just using a Optima Car Audio battery under the hood maybe put an end to my lights dimming?”

  1. zanilth1984 on March 22nd, 2009 3:58 pm

    I would recommend getting a capacitor, and possibly looking to see if you can get a stronger alternator. Upgrading your battery will be a good idea too, but I don’t think it will solve the problem completely.

  2. conejote_99 on March 24th, 2009 1:20 pm

    no most likely the problem will still be there keep the factory battery and install the yellow top in the trunk close to your amplifier

  3. TomB on March 26th, 2009 4:15 am

    Doubt tlhat will solve the light dimming. Optima still is a 12 volt battery. Low output at idle not allowing alt to put out enough amp to keep up with acc at idle. A lot of car makes lights dim at idle, mostly nature of the beast.

  4. Rawbert on March 28th, 2009 1:30 am

    I had a wonderful system in my Honda. I could play it with the car off for about an hour and it would start up with no problem. I was running two 10″ subs.
    I switched to two 12″ subs (on the same amp) and it killed my battery while driving down the freeway.
    I put in a 1.0 Farad Cap and I had no problems after that.

    So, I would add a Cap to your amp that has the subs hooked up to it.

  5. Evil Rondy on March 30th, 2009 7:59 pm

    A cap has “NO” effect on dimming lights. You need more current. An extra battery or two and a dual-battery isolator. A higher amperage alternator wouldn’t hurt either. Don’t waste your money on a capacitor that won’t do anything.

    I’ve seen car systems with 20-Farad caps and they still dimmed. If people suggest 1-Farad per every 1000 watts, that should have been good for 20,000 watts. It was running “only” about 2500 watts, two JL 1000/1’s and a Fosgate.

  6. ohm on March 31st, 2009 12:36 am

    Like previously mentioned, a capacitor will only make your problem worse as it’s just another item your alternator has to keep charged (as well as the amp and your cars’ electronics).

    Another battery will hurt also, as your alternator will have to keep it charged too.

    Do the Big3 upgrade;

    After this, you’ll need to look into a HO (high-output) alternator.

    Have Fun!