Battery drain issues

[tdeverjr]

I have a 2025 Longhorn with just over 3000 miles on it. Went out to start it one morning and battery was completely dead. Bring to local dealer can’t find anything wrong, 2 weeks later same issue. Have it at a the shop I bought it from now hearing the same story that everything seems fine. Not sure what to do

 

[vtcats]

Yes. In my case it was a less than perfect connection at the driver side fender main ground, next to the hood hinge.
I cleaned it really good and applied conductive silver grease to keep it from getting oxidized again, knock on wood, been good since Jan 20 2022.

How did you find it? I would imagine there a tons of places with ground wires throughout the truck

 

[kapinallinen2]

How did you find it? I would imagine there a tons of places with ground wires throughout the truck

It is the main grounding point from the battery to the truck, so checked it first and got lucky.
As far as troubleshooting it, I used a multi-meter from the negative battery post to the ground stud and measured 0.1 volt drop between the two points.
Also remembered seeing the TSB about a poor connection possibly causing issues.
Yes, there are around 30 or so ground connections in all.

 

[vtcats]

It is the main grounding point from the battery to the truck, so checked it first and got lucky.
As far as troubleshooting it, I used a multi-meter from the negative battery post to the ground stud and measured 0.1 volt drop between the two points.
Also remembered seeing the TSB about a poor connection possibly causing issues.
Yes, there are around 30 or so ground connections in all.

Thanks, I also have a clamp meter I used on my boat to track/mesure DC amp draws for a multitude of things. I wish we had a schmatic and/or pictures of all those ground connections on this truck. Before my 24 limited went in for a new engine (yes, ugh with only 7100 miles), I noticed the battery was just below 12 volts. I keep track of its voltage since new and it has never been below 12.3 (that was after 3 weeks of sitting this past summer). So because I’m sure the mechanic will only focus on the engine, I’m kind of expecting something like what you describe after getting it back next week…I’ve got a jump pack regardless.

 

[kapinallinen2]

I wish we had a schmatic and/or pictures of all those ground connections on this truck.

This is on my 2019. You can get model year specific by subscribing to Alldatadiy for not much money.

 

[kapinallinen2]

These do not crop and retain resolution all that well when posting here but should give you an idea of what info is available.

 

[vtcats]

These do not crop and retain resolution all that well when posting here but should give you an idea of what info is available.
View attachment 194308

Thank you!!!!

 

[Ramboxfan]

We just bought a 2025 RAM 1500 Limited, 600miles. Same problem with battery dying. At dealer since Thursday PM. They were able to tell there is a drain, but can't find it, working with engineers/manufacturer. Did any of you get resolution to your battery draining? Or was it a problem with charging system?

 

[Ramboxfan]

We just bought a 2025 RAM 1500 Limited, 600miles. Same problem with battery dying. At dealer since Thursday PM. They were able to tell there is a drain, but can't find it, working with engineers/manufacturer. Did any of you get resolution to your battery draining? Or was it a problem with charging system?