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Alternator/Battery problems?


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sdeshazo
New User

Mar 5, 2011, 1:54 PM

Post #1 of 4 (1452 views)
Alternator/Battery problems? Sign In

I am needing help resolving an issue with my car. About one month ago, I had a Duralast Gold battery put in my 2007 Saturn Ion... My previous battery was an ACDelco. In one month from getting the Duralast battery put in, IT is already gone bad. I had my alternator tested at Auto Zone and it read to be fine. Could there be a short somewhere causing it to eat my battery so fast? Or what could be the problem??? Thank You!

Shaun DeShazo


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Mar 5, 2011, 2:27 PM

Post #2 of 4 (1450 views)
Re: Alternator/Battery problems? Sign In

Did you have the battery tested are are you just assuming it was bad because it was discharged?
Did you have the charging voltage tested in the car?



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



sdeshazo
New User

Mar 5, 2011, 2:55 PM

Post #3 of 4 (1446 views)
Re: Alternator/Battery problems? Sign In

I had the Battery and Alternator tested. The Alternator tested to be good, but the battery tested to be bad. But I JUST had that battery put in one month ago.. Do you know what the problem could be?


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Mar 5, 2011, 3:52 PM

Post #4 of 4 (1438 views)
Re: Alternator/Battery problems? Sign In

Did they replace that battery under warranty because I have my doubts if it was really bad? It was likely just discharged.

You need to have the charging system checked in the car to verify that it's charging. If you have confirmed the charging system is working, then you may have a parasitic draw on the system when parked.

There is a procedure for finding a battery draw like that.

You will need a digital ammeter and a jumper wire with clips on the ends to do this.
First rig any door switches so you can have a door open without triggering the interior lights and unplug the hood light. Remove one battery cable and attach the meter in series between the battery cable and battery post. Take the jumper wire and also attach it the same way. Leave the jumper wire on for at least 10 minutes to expire all the automatic timers. Now remove the jumper wire and read the meter. Anything over 50ma is too much draw. The way you locate this is to start removing fuses one at a time until the meter drops to normal level. This will be the circuit with something staying on. Determine what components are part of that circuit and check them individually until the problem is isolated.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.







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