I have an 05 quad cab that the batteries leak down in. If you are driving it every 3 days no problem but if you let it set a week the battries are all but dead. Cables are good and terminals are clean.

are the batteries oem? you ever killed them, like leaving the lights on or ,my favorite, leaving the switch on all night long unti they are dead, dead, dead? mine are shot for the last reason and must be replaced soon. you could have a parasitc draw from something slowly bleeding them down. one of mine is slightly moist on top and you can actully read some curent off the top of the battery case.

Try disconnecting them and letting it sit, they may be bad and will die on their own. Any aftermarket boxes on the truck, performance, lights, etc?

the best thing i can tell you is to have them tested.

one bad battery will pull down a good battery, that is the problem I had. Do as the previous post and disconnect the batts, then read each one.

--- Update to the previous post...

Harbor frieght has a cheap battery load tester, or get it done free at places like Pep Boys, or Auto Zone.

My Dad's '05 has the same problem, and it has 2 new batterys in it. It killed the first set of new batterys he put in it, because the truck killed the old set. He's had it to the dealer and they have not had any luck finding the problem.

Pull the dash and disconnect the radio, not just the fuse. That's what we just found out was the drain on Dad's '05.

I run a solar charger on my dash if I'm not using the truck often... It's just enough to offset the parasitic drain. Be sure all your after market toys are wired according to their instructions. I unplug the accessories GPS (+ radar in cirus). Truck has an installed Escort anti-radar system. Yes, with parallel batteries, a bad cell in one battery will drain a good one. Pull leads & charge them individually, then test. Dodge draws power from driver's side, ground from the passenger's side I believe. Test for good ground. Check all connections, not just the ones on the batteries.

Dad's drain was such that it only took two days at most for the batterys to be low enough that it wouldn't turn the starter over. On a brand new matched set of batterys.

Did you disconnect the batteries, to see what happens?

Did you disconnect the batteries, to see what happens?

In Dad's case undoing the batterys, solved the problem in the short term. They were brand new. Disconnecting the radio has solved the problem.

From my experience as an installer... there is likely a switched power lead, an 'always on' power lead (parasitic draw) controls the station memory when the truck is off, and ground. Possibly the switched power lead is on all the time (wired to the wrong source) Possibly the unit has a defect.

From my experience as an installer... there is likely a switched power lead, an 'always on' power lead (parasitic draw) controls the station memory when the truck is off, and ground. Possibly the switched power lead is on all the time (wired to the wrong source) Possibly the unit has a defect.

Russ, again this is a factory radio, installed in the factory, in the factory wiring harness during assembly of the truck. This is not an aftermarket radio, that somebody installed in the truck.

If it's an OEM unit, than it should be wired right. If it's the problem, than the unit has crapped out.

Have you solved your problem? Other than disconnecting the radio?

Have you solved your problem? Other than disconnecting the radio?

Put an OEM radio in from the junkyard and all is fine.