Question about 2008 Dodge Avenger

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My 2008 Dodge Avenger's battery is dead, I have jumped it 4 to 5 times. The car keeps running after removing the jumper cables and the battery charges up enough to restart it a couple of hour later. It will not start if left for more than 8 hours. What could be the issue?

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  • grrttscott Apr 26, 2011

    I am have a similar issue did you find the cause yet?

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These cars have become notorious for high battery drain when parked. Coupled with the "exterior illumination" feature that turns on the headlights whenever you unlock the doors remotely, they discharge batteries at an alarming rate when just putted around town. This started happening to ours, and I removed the battery and opened it up (yes, you CAN do that, if you know what you're doing) and sampled the specific gravity. After a low rate recharge, ALL cells were actually a bit on the high side, typical for a cheap OEM battery, but indicating that there was a charge present. After three days of sitting and some cold weather, it wouldn't crank the engine again. The problem appears to be around town driving, along with the unneccesary use of headlights when unlocking, with the high current drain when parked thrown in. Also, the typical cheap Chrysler battery terminals need constant cleaning/burnishing. I highly recommend this and protective grease. Since doing this, I've had some "low charge" incidents, but the car always starts.

Posted on Jan 15, 2011

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These cars, especially with the ZPEV package, draw enormous amounts of current after shutting down (>30 amps) due to the positive evap system and the alarm system. Never activate your alarm system unless necessary and, if your car sits a lot, give it a low-rate boost charge. Check electrolyte gravity every six months to insure you're getting enough charge to it. Just running an engine for 5 minutes WILL NOT CHARGE A BATTERY AT ALL, the #1 reason why people trash their batteries...ignorance and laziness on maintenance. NEVER buy a "maintenance-free" battery...they're pre-programmed to fail just before the warrant expires.

Posted on Aug 04, 2013

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First you should have the charging system check. A simple check like sitting in your car with the doors lock and listen and do a visual inspection for anything on or running once everyhting is shut off.

Posted on Oct 08, 2010

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  • MGAvenger Jan 11, 2011

    Just out of curiosity, do you have a My Gig system in your avenger? If not, did you find out what was draining the battery? I have the same problem now.

  • grrttscott Apr 26, 2011

    I have a 08 Dodge Avenger SE model with the standard package pw/pl and no extra electronic stuff. We were in an accident in Dec 09 where the battery was destroyed. Everything was fixed and had no problems with the car until Oct 10. The battery was dead so I jumped it off and it started up and ran fine for 3 to 4 days. That is when it died again. The car stayed with this pattern up for a couple of months. In Jan 11 it went into the shop to find out what is going on. They told me it was a weak battery. So we replaced the battery and the car was dead again within 2 weeks while I was on a road trip. So I took it back to the shop again and they did a full load test and all of the other normal and abnormal checks. No issues found. The day after bring the car home it was dead again. I have searched every forum that has anything about dead batteries with no luck yet.
    If you have any ideas please let me know.

  • brianb2012 May 08, 2011

    If you haven't found the solution yet, here is a troubleshooting technique that might lead you to the problem.... Hopefully you have and know how to use a volt/ohm meter. Without the car running disconnect the negative terminal on the battery. Next hook up one lead of the meter to the battery and the other to the battery cable. Note: If you suspect this "draw" may be more then 10 amps it may damage your meter if it is unfused. (not likely though) Use the current function on your meter. It will show your current draw from the battery in the state the car is in. With everything off you may have a small current draw in the miliamp (.00_) range which would be normal for holding memory in the radio and a few misc. things. If it is much higher than that like about a half an amp or so you can start removing fuses out of the fuse box one at a time to find the bad circuit that is giving you the issue. Then determine if you need the circuit depending on what it does or isolate the fault from there. Be sure to put the fuses back in right away if its not the bad circuit so they don't get mixed up. Good luck and be safe

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