Car electrical

[adio25 10+ year member]

Right now I have an 02 taurus with a 130 amp alt. At idle its around 14.35v and 12.7v with a/c full blast, headlights, and rear defroster on. Battery is a diehard gold. Big 3 all in knu 1/0 fleks. Look at sig for more info.

When my car is sitting idle and put up more than one window all my lights dim even when I have everything electrical turned off(probably true in every car tho). But my main gripe is when I'm driving and I have my volume turned up, my lights will dim pretty badly to a song with a punchy beat. Usually I wouldn't mind this but I have HIDs and they are very touchy with voltage spikes and flicker. I did the big 3 hoping it would fix it but it really didn't do a whole lot imo. Was wondering if I should get something like kinetic hc 600 in my trunk to help with the dimming. //content.invisioncic.com/y282845/emoticons/crazy.gif.c13912c32de98515d3142759a824dae7.gif

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[Pioneer~Saturn 5,000+ posts]

Yea, a battery in the trunk would help a bit...though Id look into a slightly larger model of battery for that amp, an HC1400 would be a nice, solid choice imo. What kind of power wire to the back are you running? If it isnt 1/0 gauge you need to upgrade that and a 1/0 gauge run back to the front (connecting rear and front batts negatives) would help instead of grounding to the chassis..

 

[adio25 10+ year member]

Yeah I have knu 1/0 klmx to the back

 

[hotshot27 10+ year member]

yay, another taurus. ive done some testing on the current draw in the taurus, and have found the stock alt BARELY has enough juice to run

1 headlights

2 defrosters (AC kicks on)

3 Rear defrosters

4 Actually power the car

so until you get a bigger batt, i wouldnt look forward to heavy bumping in the winter.

HO alts can be found pretty decently priced, do you have the OHV or the DOHC?

 

[adio25 10+ year member]

The duratec aka impossible to get to the alt.

 

[hotshot27 10+ year member]

ouch, then I'd get a decent sized batt for the trunk, Deka G31, C&D, something along those lines, and call it done. youve got a very large trunk, so finding a spot to tuck a battery shouldnt be a problem

 

[x1le 10+ year member]

Are you still running your stock battery? My suggestion would be to grab the biggest deep cycle you can fit under your hood, and then go from there.

 

[hatedonmostly 5,000+ posts]

Generally, Fords only have enough electrical ability to keep them running from the factory. And what made you think you could run a 2Kw amp off one starting battery, factory alt, and the big three?

 

[adio25 10+ year member]

Would a HC2000 in the trunk do the trick?

 

[adio25 10+ year member]

Got my new C&D 93ah battery in and wow what a difference, no dimming at all anymore. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif When I was running my wire to the 2nd battery I didn't have enough 1/0 gauge to to make the ground on my amp so I used like 3 ft of 4 gauge straight to the battery. Is that a problem? I'm planning on getting some 1/0 later on when I get more money though.