battery

[scotsman 10+ year member]

I've had enough of the dimming in my car everytime the sub hits so, I have decided to put another battery in the trunk of my car. Not doing the big 3 cuz it's a pain in the *** to reach anything under the hood of the new volkswagon jettas. I am running about 1600 watts currently and may upgrade to about 2100 later. WHat would be the best battery for my application and how large of one will i need? I tried searching on here but I couldn't find the answers I needed. Will this even help with the dimming in my car? My understanding is that hte amp is pulling to high of a current right now from the battery, so by having another battery in the trunk it would provide the extra current needEd?

Click to read more...

 

[wesl56 10+ year member]

optima yellowtop

 

[audiolife 5,000+ posts]

kinetik 2400

 

[scottiej 10+ year member]

Take your pick... //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

http://www.powermastermotorsports.com/16v_battery_charger.html

 

[AgEnT 10+ year member]

im not an expert but dont u need a HO alternator unless ur stock alt is big enough to support that load.

 

[PhatTonyDeMarco 5,000+ posts]

im not an expert but dont u need a HO alternator unless ur stock alt is big enough to support that load.

Yeah; you can buy the biggest battery out there but with that much power on a stock alternator you will still get voltage drops.

Your only option to get rid of your problem is to upgrade the alternator, and possibley the battery with it.

 

[scotsman 10+ year member]

bummer I don't think anyone makes a HO altenator for a 2006 Jetta yet. I was about to buy one of those Kinetik HC2400 for $250 shipped to my door.

 

[audiolife 5,000+ posts]

how big is your stock alt?

 

[scotsman 10+ year member]

how big is your stock alt?

im not sure, I have searched everywhere and can't find it.

 

[scotsman 10+ year member]

nevermind I found it, it says only 70 amps //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif

http://autos.yahoo.com/volkswagen_jetta_sedan_tdi-features/?p=all

 

[scotsman 10+ year member]

nvm on the VW site it says my alternator is 14v / 140 amp

 

[audiolife 5,000+ posts]

should be ok with it adding a battery ..2100 might even be ok as alot of after market ho alts are less powerful than stock alts at idle so you have to mess around with pullies and belts lol

 

[scotsman 10+ year member]

yea i saw i could get away with a 2100 but its only like 10bucks cheaper than the 2400 on millionbuy

 

[Silverbane 10+ year member]

nvm on the VW site it says my alternator is 14v / 140 amp

Might want to double check that, I doubt very highly that little car has a 140amp alt. I also doubt that the 1400 watts would be putting that much pressure on 140 amps.

 

[Team Hammer 10+ year member]

I've had enough of the dimming in my car everytime the sub hits so, I have decided to put another battery in the trunk of my car. Not doing the big 3 cuz it's a pain in the *** to reach anything under the hood of the new volkswagon jettas. I am running about 1600 watts currently and may upgrade to about 2100 later. WHat would be the best battery for my application and how large of one will i need? I tried searching on here but I couldn't find the answers I needed. Will this even help with the dimming in my car? My understanding is that hte amp is pulling to high of a current right now from the battery, so by having another battery in the trunk it would provide the extra current needEd?

If you don't do the Big 3, Adding a extra battery will not help. You will also need a Isolator to stop the battery from back feeding between each other.Also that many watts on the system can cause a fire without the proper upgrades. See will a HOA fry my cars electrical system!