Burned out Alternator help -overload?

[School bus]

Hello I am new to building a car audio system and might have overdone it this time.

I bought an alternator from excessive amps ( 250 amp) and installed it in my bus. I'm running two 2600 Watt Rms amplifiers driving two 15 Inch Subs.

Both amps are running through a controller and are seperate, not wired together.

I also installed in addition to the (2) two exsisting 850 amp batteries, two 3800 watt Kenetic batteries.

After about a week my alternator went out. I mean I fried it completely. Diodes are gone and the rectifier is toast.

I am thinking of adding a BATCAP 8400 model along with changing to two 350 amp alternators.

Is this right or am I doing something wrong again...

Help please...

Thanks.

JR

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[snoopdan 5,000+ posts]

wow when did batteries start having a wattage rating //content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif

 

[School bus]

wow when did batteries start having a wattage rating //content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif

Wow...like I said I am new to this.

Thank you so much for such a helpful answer.

This really solved it all. Kenetic 3800 okay? Better?

Quote about the Kenetik 3800 battery.

Senior Member

Member # 13368

posted 09-21-2008 12:51 PM

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going on the specs from one on e-bay it really sucks.

You are bidding on a brand new Kinetik HC3800 Power cell. This is a pretty powerful audio cell! Used in the loudest vehicles in the US and has 3800 watts of pure power.

3800 watts/12.6 volts=300 amps

 

[snoopdan 5,000+ posts]

You're not making any sense mon.

As far as you alternator is concerned, it's not your batteries that are at fault at all. In fact, you can have 20 12 volt batteries of whichever CCA size and it wouldn't matter to the alternator - it would charge them as best it could. Sounds like you just had a bad alterantor.

 

[School bus]

You're not making any sense mon.
As far as you alternator is concerned, it's not your batteries that are at fault at all. In fact, you can have 20 12 volt batteries of whichever CCA size and it wouldn't matter to the alternator - it would charge them as best it could. Sounds like you just had a bad alterantor.

Ok..thanks...so you think by trying to pull 10400 watts out of those batteries is not a problem??

 

[audioatg 10+ year member]

Ok..thanks...so you think by trying to pull 10400 watts out of those batteries is not a problem??

You most likely dont have that much wattage.

 

[School bus]

wow when did batteries start having a wattage rating //content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif

Hey Bro,

Go here and read this.

http://www.kinetikaudio.com/2009/product.asp?P=KHC3800&C=1

Nothing like learning something new. Look how many watts the builder of the battery says "A" battery has.

 

[School bus]

You most likely dont have that much wattage.

You're probably right.

How would I calculate the wattage then? Isn't it RMS/0.707 to get peak?

In any case, after getting some really really stupid remarks in another forum, I am starting to think that I just had a bad alternator. Can happen and that's ok

It was just important for me to find out if something I did was wrong.

I have two FI BTL 15's fully loaded each running off a Brutus 2600 RMS amplifier.

All wires are zero gauge. Everything worked fine until the Alternator just quit.

Snoopdan ...thanks for your logic about the batteries..you're absolutely right..

when the alternator quit, I drove home with AC ( both front and back blower on) HID lights on radio on with subs off.

When I got home about 20 minutes later the van still even started again, so good thing I had the reserve to make it home.

You guys have a good weekend

JR