How many Amps is my alternator pushing?

[Cassinova 10+ year member]

Well I just got a 2009 Altima 3.5 V6. I have a crazy set up I want to put it but I want to know what to do in terms of power. I have a 2000 Watt RMS (4000 Peak) for the subs and a 400 Watt (1600 Peak) for the interiors. I have a 5 Farad cap laying around as well. However, I remember this equation I used to know way back when which will determine what the alternator was pushing but as the years passed I forgot. Can anyone help me out. I really do not want to buy a high output alternator because they for for like 600$ and labor on top of that will burn my pockets deeply. Second batteries not an option either because the subs will engulf my whole trunk.

Click to read more...

 

[thevic24 5,000+ posts]

Here you go, this is from Alldata.

You will just need to see which one you have.

What actual amps are you going to use?

If the put out the 2k+, then you will NEED at least a second battery or you may end up cooking something.

 

[Cassinova 10+ year member]

Hmm I had the 2000 Watt in my Audi and with 5 Farad cap it was fine. I mean basically the cap and the battery are both putting a strain on the alternator right?