Question about 2008 Dodge Avenger
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
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
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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Posted on Jan 02, 2017
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