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Thread: Not used to High Wattage Systems. |
    
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| Posted on Tuesday, December 30, 2003 - 02:02 pm: |
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How many amps can you draw from a normal car's battery, before needing to upgrade to a bigger altenator (probably spelled that wrong), and bigger cables for that and the battery? |
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New member Username: Glasswolf
Post Number: 430
Registered: 12-2003
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| Posted on Tuesday, December 30, 2003 - 08:22 pm: |
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ok, battery is only used when the car's engine is off, so the larger the battery, usually the longer it'll last though there are other factors.
If you plan to do a lot of high power, high volume listening without the car running, consider using a battery isolator, and a dedicated deepcycle battery (or bank of them) for the audio system, so that the starter battery isn't touched by the stereo system, and you'll get more listening hours out of the system without the car cranked over.
the alternator will need to match the current draw of the audio system regardless, and more so with the deepcycles to recharge as well if you go that route.
if you plan on any system larger than a couple hundred watts at most, you'll want a bigger alternator, rated for the current draw of the amplifiers, plus the stick alternator rating.
for power cable sizes, see the following chart:
http://www.the12volt.com/info/recwirsz.asp
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New member Username: Dyspros
Post Number: 3
Registered: 12-2003
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| Posted on Wednesday, December 31, 2003 - 05:35 pm: |
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well you can if you connect like a 0ga wire form the +battery terminal to a ground get a circuit of 14,400W i got this form http://www.bcae1.com/ |
New member Username: Glasswolf
Post Number: 459
Registered: 12-2003
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| Posted on Wednesday, December 31, 2003 - 07:55 pm: |
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you can what?
cause a fire?
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