quick current draw question

[jmkanek 10+ year member]

i have two PA A3000db amps, wired to a 1ohm load on each to two orion hcca 12.2's and i have the stock battery up front, and stock 100amp alt, and in the back i have a kinetik hc-800, and two 750CCA caterpillar batteries, and when playing my voltage still drops to around 11v-12v, is this normal

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[Chin_Chilla 10+ year member]

I'm not sure, but I would have to say yes. you have a stock alt for all those batts? If you ahve a hard time keeping up with 1 bat, what makes you think it wont struggle for 4+ batts?

 

[swx1042 10+ year member]

Small alt, big burden.

Stereo + Car Electronics + Charging

 

[loopkiller 10+ year member]

i have two PA A3000db amps, wired to a 1ohm load on each to two orion hcca 12.2's and i have the stock battery up front, and stock 100amp alt, and in the back i have a kinetik hc-800, and two 750CCA caterpillar batteries, and when playing my voltage still drops to around 11v-12v, is this normal

I have no idea what Caterpillar batteries are, but if they are anything like those Butterfly batteries, they **** //content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif

So basically you are running 4600W RMS on a stock alt and a bunch of small batteries and you are still wondering why your voltage sags? //content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif//content.invisioncic.com/y282845/emoticons/rolleyes.gif.c1fef805e9d1464d377451cd5bc18bfb.gif

 

[jmkanek 10+ year member]

caterpillar batts, are heavy equipment batteries, pretty big batteries, so ya think i need a much bigger alt. then 100 amp alternator

 

[loopkiller 10+ year member]

caterpillar batts, are heavy equipment batteries, pretty big batteries, so ya think i need a much bigger alt. then 100 amp alternator

Why the hell would you use tractor batteries for car audio? And mixing 3 different batteries in a car is bad news as well. Time to toss out 90% of that shit and buy proper stuff. Get two Group 31 batteries for the rear, the biggest alt you can buy, and toss out the tractor batteries and that little Kinetik.

 

[SicAudio 5,000+ posts]

keep the kinetic battery ditch the junk cat bats and get a real alternator do the BIG3 and see where ur at.

 

[loopkiller 10+ year member]

keep the kinetic battery ditch the junk cat bats and get a real alternator do the BIG3 and see where ur at.

That HC800 is not going to help much when pushing 4600W //content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif

It is rated to handle 800W RMS. //content.invisioncic.com/y282845/emoticons/rolleyes.gif.c1fef805e9d1464d377451cd5bc18bfb.gif