kinetik batteries

[GotThemVibes90 10+ year member]

im looking into buying a kinetik HC2400 for my car. my system runs 2300rms and i have a stock alternator.

do i still need to purchase a HO alternator?

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[KyleBechtold 5,000+ posts]

what amps you running? how many amps is your stock alt? got a big battery up front? did you do the big 3 or minimum big 2

 

[1rockford1 5,000+ posts]

what size alt u have and what amp u have would help. 1/0 ga for power ground and big 3 done in 1/0 is a good start.

 

[GotThemVibes90 10+ year member]

what do you mean by big 3.

im just getting started into the car audio, but its definently something i love.

and right now, i just have a interstate battery and i planned on replacing it with the kinetik.. and the stock alternator puts out 105 amps

i have a rockford fosgate power series setup

a T-20001bd amp and 2 T2 12" dual 4ohm

my head unit is a alpine 9856, its never let me down.

and i got a couple caps if there even necessary n e more? 18F and 3.5F

and yes im running 0Ga power and ground. but nothing special for speaker wire, i dont think its necessary is it?

 

[KyleBechtold 5,000+ posts]

don't use caps.. if you can fit that 2400 up front go for it but get another batt for the back or just get a HO alt

 

[GotThemVibes90 10+ year member]

thanks for that, and by meaning another battery for the back

ur saying this system is going to take (2)kinetik HC2400 batteries to be able to power?

or what do u think ill pry need total.

and yeah i doubt the hc2400 is going to fit under my hood...

 

[GotThemVibes90 10+ year member]

ill pry go threw with buying a kinetik HC2400 for the back 1st, then a HO alt at 200A, and a kinetik HC800 for under the hood.

does that sound like a reliable way to go?

 

[Notloud00 10+ year member]

do an 1400 up front, 2400 in the back and a HO alt. do the big 3 up fromt and a 1 run of 0 gauge for ground and power to the back. should be sufficient //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[audiolife 5,000+ posts]

I would say a 160 amp alt (with 90 amp idle) at a minimum with an 1800 in vback and an 1800 under the hood

 

[loopkiller 10+ year member]

Always try to match your batteries if you need more than one. They should be identical batteries with the same age. So if your setup requires more than one battery, buy two identical batteries at the same time.

For you specifically, you have two options.

Option 1) One HC2400 in the rear, keep the stock battery in front, install battery isolator.

Option 2) Remove stock battery, install one HC1800 in front and one HC1800 in rear. No isolator needed.

 

[Lakota 5,000+ posts]

It won't run well off a single 2400 alone.

 

[Enellz 10+ year member]

I say get an HO alt since you will probally upgrade. If you love the hobby, it'll get the best of you.

 

[profundus-sanus 10+ year member]

If you daily drive this vehicle then you don't need an isolator. A single 2400 in the back with the big three done will be enough.

 

[SHOemup233 10+ year member]

Always try to match your batteries if you need more than one. They should be identical batteries with the same age. So if your setup requires more than one battery, buy two identical batteries at the same time.
For you specifically, you have two options.

Option 1) One HC2400 in the rear, keep the stock battery in front, install battery isolator.

Option 2) Remove stock battery, install one HC1800 in front and one HC1800 in rear. No isolator needed.

Matching batteries looks nice, but it is not necessary by any means. Same age? Maybe, but still not crucial. A battery isolator is not needed either way, unless the OP plans on running your system with the car off. He has plenty of options with what he wants to do, it is not limited to specific batteries and setups.

A HO alt, and a 1400 up front and back would be more than enough for 2000 watts. What batteries you use and whatnot is up to you. If I was you I would replace your front battery, then get a HO alt, then go from there.

 

[loopkiller 10+ year member]

Matching batteries looks nice, but it is not necessary by any means. Same age? Maybe, but still not crucial. A battery isolator is not needed either way, unless the OP plans on running your system with the car off. He has plenty of options with what he wants to do, it is not limited to specific batteries and setups.
A HO alt, and a 1400 up front and back would be more than enough for 2000 watts. What batteries you use and whatnot is up to you. If I was you I would replace your front battery, then get a HO alt, then go from there.

Matching batteries is not necessary if you like your batteries to die prematurely.

If you like to get the full life out of your battery, then stick with the way it is supposed to be.

You see the amount of charge it takes to fully charge a small battery will not fully charge a large battery. What happens when you have two dissimilar sized batteries is this; when the charging system (alternator, charger, power supply) sees an amp draw from the batteries, it will produce a charge voltage based on that load. Under a larger load, it will charge at 14.4v (or higher). Under a smaller load, it will charge at around 13.6v. That is because the charging system sees a lower load, which would indicate full batteries.

So now you have one small battery and one large battery. The small battery will charge in a shorter time (let's say 30min) than the larger battery (let's say 2 hours). So after 30 mins of charging at full voltage (14.4v), the small battery is now full and no longer draws much current. However since the larger battery is still drawing current because it is not yet fully charged, the charging system still sees a large current draw indicating that the batteries are not fully charged yet and keeps the voltage at the higher rate (14.4v). This higher voltage on a fully charged battery will overcharge the small battery and will lead to a very shortened lifespan.

That is why it is important not to mix batteries. Yes it will work for a while, but over time you will see a premature failure of the smaller battery.