Someithing keeps killing my battery, cant find what it is Options

[epocsirhc]

Did you ever find out what was causing the drain? Also I apologize dvom=multimeter.

[cibrit-]

I had problems with my car when I first got it. It just kept draining the batter and pissed me off.

Before I took it to the electrician I took a test light to every fuse in the fuse box and found out what that was powering. This would be my advice to you before you go taking it to an electrician. That is, unless you can find an electrician that will fix it for cheap like I did .

[Batman722]

it's either your battery or the voltage regulator in your alternator.

[cibrit-]

That's the name!! Thanks batman, I completely forgot the name of it xP. But yeah, the voltage regulator was bad.

[Velliety]

I had the same thing happen - mine turned out to be my headlight switch. My battery was being drained even with the headlights off. Replaced the switch, no more dead battery.

[viruz_one]

OK bumping this old thread back...

After further inspection, i noticed that it had some sort of aftermarket LED mounted by the driver side-side vent. I pulled it off and followed the wire until I came across an after-market ALPINE alarm system. This thing was wired straight into the main power fuses. I cut all the wires attached and resolder them together. I guess we'll see how it works from now on but after leaving it a few hours it seems to be ok.

Only problem is now my side blinkers are not working at all. I'll have to test and see what is affecting those wires. Anywyas might have pics up if i get a chance. But relieved for now!

[Batman722]

did you unokyg your hazzard light switch ? that would cause the blinkers not to work at all.

[viruz_one]

LOL! OMG Yes I did! I actually removed all my center console and trim where the hazard switch and clock are. Disconnectd them to get better access and see if I found anything fishy in there.

Saved me some time Batman Thanks!

[Jaws4God]

the voltage regulator in your alternator.

can autozone or advanced auto check for that? I have a drain and not sure why... wondering if its this or possibly the headlight switch like happened to the other guy..

[chacha]

you can check yourself....if you can start your car, then turn it on with the batt juice you have....then with the car running....unplug the positive terminal on the battery off....if your car is still running...it's not your alternator (it is still good)....if it dies...you have a bad alternator and you need a new one. Saves you the trouble of taking out your alternator. If the alternator is bad, take it off and give it to the shop to test the voltage for reassurance.

Because your batt is low already once you figure it out...take it to those shop to have them charge the batt correctly....make sure they know how to charge it because the guys at Autozone didn't. I had an optima D31a battery for super duty stuff....they tested it and told me i had a bad battery; told me to buy a new batt. took my batt to kragen or o'rilely....charge it with the right amount of amps and heal my battery back to life. I told them what the autozone guys did and he told me i would have turn my optima batt into a bad one by charging it with the wrong volt and amp current.

This post has been edited by chacha: Dec 20, 2010 - 10:46 PM

[Jaws4God]

you can check yourself....if you can start your car, then turn it on with the batt juice you have....then with the car running....unplug the positive terminal on the battery off....if your car is still running...it's not your alternator (it is still good)....

I was under the impression that the alternator could still charge the battery when running but when you turn the car off the voltage regulator can kill the battery...

[trebilihp]

you can check yourself....if you can start your car, then turn it on with the batt juice you have....then with the car running....unplug the positive terminal on the battery off....if your car is still running...it's not your alternator (it is still good)....

I was under the impression that the alternator could still charge the battery when running but when you turn the car off the voltage regulator can kill the battery...

I guess it can. I'm having the same problem, and I noticed that lights were over lighting when I reved up the engine. Looks like the alternator is overcharging the system and this could be caused by a defective regulator. I mesured a 6A current passing trough the positive cable of the alternator while the car was of and nothing working. That MUST be what is draining the battery. I'll chage the alternator thursday and give you some news.

By the way, got a new paint?

This post has been edited by trebilihp: Dec 21, 2010 - 9:05 PM

[trebilihp]

Was actually my alternator. Changed it, runs well. Look if there's a leak from the positive cable of the battery. If there is, (wich is actually the problem here), unplug the positive cable from the alternator. Chek if there's still a leak from the battery. If not, it might be a short in your alternator, caused by some blown ''diodes'' (don't know if we call it this way in english) in the regulator, cause the alternator is plugged in parallele with the electrical circuit.

Might not be the problem, but at least try this test and you might be set for your alternator..