What is the benefit of having Dual Batteries in a Car Audio Setup?

Question:
I am wondering why one would want Dual batteries in a Car Audio Setup?

My detachable Sony car stereo died suddenly after a kid tried the max volume. No light. Fuse problem? Thanks.?

Is this done so that when the audio system is on when the car engine is off it will have more current to give?

I keep blowing amplifiers and i dont know why?

Will dual batteries have any effect on the power delivery to the audio system when the car is running?

6x9 enclosure?

Can I just hook two identical model batteries in parallel?

I was thinking about buying a decent subwoofer. do u hook sub up to the deck or amplifier?

Some wisdom is appreciated, Thanks.

Answers:

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DO NOT wire your batteries in parallel as OR suggests or you will be listening to your system with the engine off one day and you won't be able to start your car.

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The purpose of a dual battery set-up is to have one battery for your car audio system and one for your vehicle. This is done by using a battery isolator. This way you can listen to your stereo without draining your starting battery.

What is the point of have a Bass Tube?

Make sure you use two of the same size batteries or your isolator will only allow the larger battery to charge as much as the smaller battery. Use deep cycle batteries or Optima's. Preferably a sealed Gel cell battery if your secondary battery will be located within the passenger compartment of the vehicle as a regular lead acid battery can and will give off hazardous fumes.

I have a 96 camaro and i wanted to get subwoofers but i have t tops so were would the subwoofers go?

The isolator will not allow a back feed of one battery to the other. You can then Cap away till your heart's content on your amplifiers.

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I had this identical set up on my car back in the day and I never had a power problem, starting problem or light dimming problem. It will cost you some money but it is the right way to do your system.

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no you can't the reason is because when you have more than
1 amp in your car less pressure on the batteries.

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the advantage of 2 batteries is to add ampherage to system.. ther are several way to go about this, you can run an entirely different circuit for your system, i.e. alternator, battery, etc. so that your car does not have an effect on the audio and vice versa.

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personally I would/have tried other options first. upgrade your alternator, in my mazda I was able to go from the stock 65 amp to 95 amps for about $75. I also changed from a standard car battery to an Optima "Blue Top", these are intended for RV an boat use and provide more amps for longer. if you are running a HUGE amp for your subs add a cap, the cap will allow your car to keep a consistant charge, rather than peaking whenever your subs hit. the bigger the amp the bigger the cap. i was running a 1 farad cap on a 1200watt amp, and i should have gone bigger, probably 1.5 farad at least.

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worst case scenario, add batteries, but if it were me, this would be last resort.

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an extra battery is just good for listening to the stereo for a longer period of time with the car off.

Amplifier is gettin hot?

This can be valuable to you guys who have high power amps and big speakers. The high frequencies don't use much power, but the bass frequencies use a lot. If you really crank it up, a loud bass drum punch might briefly draw power at the kilowatt rate. With a 12-volt battery, this would be around 100 amps or more. Obviously two batteries can supply greater current (twice as much!) as one battery. Whether or not you'll be able to hear the difference is a separate question.

Need ford stereo code asap can any1 help plz?

The dual batteries will work both when the engine is running and when it is off.

Mp3 players in a Suzuki Reno.?

Yes, just hook them in parallel. Be sure to use LARGE gauge cables (like big jumper cables), because otherwise the resistance in your wiring will limit the current ( I = E/R ) and the extra battery will get you nothing extra.

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Warning! Opinion follows: The main thing this will get you is earlier hearing loss, and you'll piss off more people quicker. But it's your call.

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The down side to two batteries is the second battery robs the alternator of power to keep it charged that would otherwise be used by the audio system.

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As batteries are really just for starting the car, a second battery isn't the best choice. If you need more amperage, get a bigger alternator.

What are the best 6x9 car speakers money can buy?

This guide will help with a few factors in the audio system:

Help to prevent from blowing subs?

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How do you get the CDs to eject Audio Master Player?

You will need Microsoft Excel, a multi-meter and a way to burn an audio CD from an MP3.

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