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Battery Drain Test Question

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Old Jan 27, 2010 | 06:36 PM
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Default Battery Drain Test Question

THis can be closed

Last edited by Tyke; Jan 28, 2010 at 07:04 PM.
Old Jan 27, 2010 | 08:34 PM
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So, you need to tell us what kind of Amp Meter you're using!
Old Jan 27, 2010 | 08:42 PM
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Originally Posted by Tyke
Hello,

My battery is draining and I dont know whats doing it; so I went to do the battery drain test where I conenct the amp meter to the negative post and the negative battery wire and I get 0....no reading at all.....this cant be possible cos I did a test in Advance Auto Parts and they confirmed a battery drain.

Any ideas why Im getting 0?

THe battery has a charge of 12.2 V by the way
Did the guys at Advance auto allow sufficient enough time to allow the BCM to enter sleep mode?
Old Jan 27, 2010 | 08:43 PM
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Originally Posted by byronhunter
So, you need to tell us what kind of Amp Meter you're using!
post pics of your setup.
Old Jan 27, 2010 | 09:58 PM
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This is what I have (multimeter): (Sorry dont know how to post pics)

http://www.amazon.com/Actron-CP7672-.../dp/B0006V2BLE

I have the red wire connected to V(Ohms)Amps

And black cable connected to COM

Then I connect 1 cable to NEGATIVE battery post and the other cable to NEGATIVE wire whcih connects to battery post.
Old Jan 27, 2010 | 10:08 PM
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Plug the red lead in the 10 amp jack. Switch selected to 10 Amps.
Old Jan 27, 2010 | 10:22 PM
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Originally Posted by byronhunter
Plug the red lead in the 10 amp jack. Switch selected to 10 Amps.
OH ok, Ill try that tomorrow, thanks!
Old Jan 28, 2010 | 06:38 PM
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You will need to disable the engine compartment light. If you are going to be in and out of the car you have to disable the interior lights too. Pull the fuses for these before you start.

We use to just put a test light between the cable and post. If the light lit up it had enough drain to kill the battery. Newer cars started having enough draw for memory to make the lamp light up dim. If it lights up full bright you start pulling fuses till it goes out. Then start unplugging things on that circuit with the fuse in until you find the culprit.
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Old Jan 28, 2010 | 06:47 PM
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Originally Posted by Han Solo
You will need to disable the engine compartment light. If you are going to be in and out of the car you have to disable the interior lights too. Pull the fuses for these before you start.

We use to just put a test light between the cable and post. If the light lit up it had enough drain to kill the battery. Newer cars started having enough draw for memory to make the lamp light up dim. If it lights up full bright you start pulling fuses till it goes out. Then start unplugging things on that circuit with the fuse in until you find the culprit.
Two threads going on this....

http://forums.corvetteforum.com/c5-t...-question.html
Old Jan 28, 2010 | 07:05 PM
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Yeah sorry LOL I forgot my title was battery drain.

Guys you can stop posting on this thread, thank you!
Old Jan 28, 2010 | 07:18 PM
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Originally Posted by Tyke
THis can be closed
indeed

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