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Battery Issue - Even with new battery


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seattlerain
New User

Dec 5, 2012, 6:59 PM

Post #1 of 4 (1316 views)
Battery Issue - Even with new battery Sign In

Last year around this time, I left my car at a friend house for 2 weeks and when i come back. I won't start. I replaced the battery. I only have one car, so when I replaced I drive every day and it will start the next day. In June, I'm gone for two weeks and the car wont' start, jumped the car, and it started again. Now, for every 3 days I won't drive it, it is dead again. If I jump it, it will work again. I turned off the car after jumped, restarted without jump, it works. I checked to make sure there is no light on in my car, and there isn't. no trunk light. Please help. Could it be the alternator?


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Dec 5, 2012, 7:14 PM

Post #2 of 4 (1290 views)
Re: Battery Issue - Even with new battery Sign In

Not likely an alternator. It's either just a bad battery or a parasitic draw when it's parked. Start out by having the battery tested and if it passes the test, then test for draw.

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.



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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.



seattlerain
New User

Dec 8, 2012, 3:30 PM

Post #3 of 4 (1205 views)
Re: Battery Issue - Even with new battery Sign In

I went to a retail auto part store and the battery was fine. Thanks for your recommendation. I don't have a amp meter. I think this will be my next step.

My car is a ford focus 2004. I just did a Google search online and it seems there are people with somewhat similar issue with battery drain. They seemed to replace alternator and also the battery and it did not solve the problem.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Dec 8, 2012, 3:37 PM

Post #4 of 4 (1204 views)
Re: Battery Issue - Even with new battery Sign In


Quote
My car is a ford focus 2004. I just did a Google search online and it seems there are people with somewhat similar issue with battery drain. They seemed to replace alternator and also the battery and it did not solve the problem.


Of course not.

That's like having a hole in your gas tank and filling it back up with gas thinking you fixed the problem. It's only a matter of time until it runs out again.



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

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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