2004 Dodge Durango, 5.7 hemi 4X4 Electrical Problem

kiltyman

Hello, this is my first question. My battery is completely discharging overnight. Totally dead. I have checked the new battery (2mos. old) and have concluded it is not a battery issue. A 10 hour slow charge, with cables disconnected, will return battery to full charge and starting and all other functions appear to be normal as long as engine is running. I did however notice that on shutdown it sounded like the CD player was cycling while the key was off. I manually turned it off but there still seemed to be power to the radio? After the sounds quit I left the vehicle overnight and by morning it was stone dead again. If battery cable is disconnected overnight then reconnected it starts. My problem is where do I start to look for the problem? Has anyone had a similar problem? Any help would be appreciated as you can imagine how frustrating it is to have to disconnect on every engine shutdown.

Mr_Shiftright

So it sounds like you have some type of parasitic drain. Here's a good tutorial to get you started:

Parasitic Drain Tutorial--Tracking It Down

kiltyman

I have confirmed that it's a drain problem as the battery is 2 months old and tested out OK Tracking down the fault is another story. It is obviously a large draw as it can fully discharge the battery in less than 5 hours. Any suggestions or am I dealer bound?