Draining Battery
Thread Starter
2nd Gear Member
Joined: Mar 2006
Posts: 415
From:
Draining Battery
Just a quick question. In my Mustang the battery keeps dying, its a new battery. I think the problem is the Cassette player inside, the digital clock is always on, keys in the car, out of the car w/e the digital clock is always on. Could this be draining my battery?
6th Gear Member
Joined: Dec 2005
Posts: 5,212
From: Hills of California
RE: Draining Battery
If its just the clock no. it could be an accessory light that is staying on inside the glove box maybe. Or the cd player is using more than just the clock.
How long does it take the battery to die?
Use a multi meter set it to dc current and hook it inline with say the positive batter lead (NOT ACROSS + -) and check current drain with car off.
Measure voltage of batter with car off Then measure voltage with car running it should be more volts say 13.5 to 14.5 volts with the engine running at 1,500+ rpm and near 12 with engine off. If it’s the same voltage with engine on vs off then the alternator is bad.
Gun
How long does it take the battery to die?
Use a multi meter set it to dc current and hook it inline with say the positive batter lead (NOT ACROSS + -) and check current drain with car off.
Measure voltage of batter with car off Then measure voltage with car running it should be more volts say 13.5 to 14.5 volts with the engine running at 1,500+ rpm and near 12 with engine off. If it’s the same voltage with engine on vs off then the alternator is bad.
Gun
I ♥ Acer
Joined: Oct 2004
Posts: 17,565
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RE: Draining Battery
Gun is right on. Take the alternator to a parts place and have it checked. If it is bad, then replace the Voltage Regulartor too. It could also just be a bad VR, so if the alternator checks out, replace the VR. Those VR connection also get crud on them, and stop working properly.
Thread Starter
2nd Gear Member
Joined: Mar 2006
Posts: 415
From:
RE: Draining Battery
I think the Cassette player may be using more than just the clock, it sounds like its trying to use the radio as well. None the less i know the car has wiring problems. I mean if the keys are in the car i can turn on the heater fan it turns on the starter and my car starts up. And i dont think the car should be able to start up by flipping the heater fan lol.
Anyways i will try to use the meter. It takes about 3 days of the car sitting to die.
Anyways i will try to use the meter. It takes about 3 days of the car sitting to die.
1st Gear Member
Joined: Apr 2006
Posts: 143
From:
RE: Draining Battery
ORIGINAL: MidNite27
I think the Cassette player may be using more than just the clock, it sounds like its trying to use the radio as well. None the less i know the car has wiring problems. I mean if the keys are in the car i can turn on the heater fan it turns on the starter and my car starts up. And i dont think the car should be able to start up by flipping the heater fan lol.
I think the Cassette player may be using more than just the clock, it sounds like its trying to use the radio as well. None the less i know the car has wiring problems. I mean if the keys are in the car i can turn on the heater fan it turns on the starter and my car starts up. And i dont think the car should be able to start up by flipping the heater fan lol.
6th Gear Member
Joined: Dec 2005
Posts: 5,212
From: Hills of California
RE: Draining Battery
Sounds like a fire hazard to me.. If that were my ride I would make a summer project out of it and redo most of the wiring using some type aftermarket wiring harness.
Gun
Gun
I ♥ Acer
Joined: Oct 2004
Posts: 17,565
From:
RE: Draining Battery
ORIGINAL: Gun Jam
Sounds like a fire hazard to me.. If that were my ride I would make a summer project out of it and redo most of the wiring using some type aftermarket wiring harness.
Gun
Sounds like a fire hazard to me.. If that were my ride I would make a summer project out of it and redo most of the wiring using some type aftermarket wiring harness.
Gun