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I have a 2011 Dodge Caliber. Last winter my battery started dying.
We replaced the battery which did not fix the problem.
The alternator has been tested and is good, the battery has been tested and it is good. I tested all my fuses and they are all good. The battery dies after they car has not been run in about 10-24 hrs but only when it starts getting cold. I am at a loss.
 

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Parasitic draws are easy enough to diagnose...disconnect the negative battery cable, put an ammeter in between the cable and the negative post, and see what the current draw is.

Be sure to turn the car off, take the keys out, close and lock the doors, and let the car sit for about 30 minutes before measuring the draw...this allows all of the computers in the car to go into sleep mode. If it's anything above a few mA you have a draw someplace...start pulling fuses one at a time until you see the draw go down, then start tracing out the circuit that fuse protects to find the culprit.
 
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