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Battery drain issue

KDAWG97M3

Active member
Member
So I appreciate everyone's help up to this point. Now I am trying to track down a drain issue. If the car sits for a day without use the battery will fully die.

So I jumped it and it runs and charges, which is good.

the way I typically track down drains is unhook the negative cable and place a test light between the negative pole and negative cable. If the light is illuminated it shows a draw. So with the light connected I started pulling fuses, but I couldn't get the light to go away, i did get it to become less bright, so I know the clock and some other stuff with pull power all the time. So I am stuck at what else to check..,any ideas? Thanks

KDAWG
 
Did you disable the trunk light? Also the car amp draw never goes to zero even after the car is shut down and gone to "sleep". Really need a amp meter or multi meter to check draw, I think Jono told me it should be like 50mA when the car is asleep. I am going to be doing this today also :)

-Mike
 
So I appreciate everyone's help up to this point. Now I am trying to track down a drain issue. If the car sits for a day without use the battery will fully die.

So I jumped it and it runs and charges, which is good.

the way I typically track down drains is unhook the negative cable and place a test light between the negative pole and negative cable. If the light is illuminated it shows a draw. So with the light connected I started pulling fuses, but I couldn't get the light to go away, i did get it to become less bright, so I know the clock and some other stuff with pull power all the time. So I am stuck at what else to check..,any ideas? Thanks

KDAWG

If you want to use the "test light" method, you need to hook up your test light first, then you have to use a jumper to jump "across" your test light for a minute. There are a number of units that have capacitors and such that need to charge up, and some of them will not do it through the test light, hence the test light will remain on while these things attempt to charge. After you do that, it is true that your test light should be off, and indeed, you have to remember to disable your trunk light since your trunk will be open. Also note that this old "test light" method will only work with an old-school tiny incandescent bulb type of lamp. Some of the new LED/solid-state test lights pass too little current for the above mentioned items to not become discharged. As others have said, this is really best done with a sensitive amp meter.
:klink:
 

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