Battery Dead

[truckguy]

Also, has anyone figured out how to jump start these trucks?

 

[JS59]

I have a 1200A jump start box rated for diesel and it barely jumped my 2019 ran hemi when the battery was completely dead. Not sure if a 1000A would be sufficient

I have a 2000A jump start that wouldn't budge my buddy's Wagoneer when its batteries died. I think Ctech put a post on here too - he tried the same and no luck with his "quick start" battery either.

 

[Deange2001]

Also, has anyone figured out how to jump start these trucks?

I was able to jump mine with my friend's truck. Took us about 10-15 minutes but it started up and I have not had a dead battery since. My jump starter (wall powered) didn't do shit for what it is worth.

 

[Deange2001]

I have a 1200A jump start box rated for diesel and it barely jumped my 2019 ran hemi when the battery was completely dead. Not sure if a 1000A would be sufficient

I ended up not bothering getting one. I don't believe it will work honestly, especially because we have two batteries. Jumper cables or tow truck seem to be the way.

 

[Deange2001]

that, unfortunately, i cannot answer. I'm not sure of the power system sequencing/logic in this truck. Wish we had a mopar tech on here that could help answer those questions.

No worries dude and I appreciate all the input you have provided so far. That said, I called three different dealerships and asked the same questions (trying to do God's work here). Two of them are local (one has a really excellent reputation, the other is one I have been going to and they have done right by me, and the third is the dealership I bought it from) :

1. All three dealers said the exact same thing (almost verbatim). They said 11v on the battery at startup is PERFECTLY normal! They went as far as to say even if it is below 11v the car will start fine (he even said at 10.5v he'd expect there would be no issues). Looking at the battery level, with the engine off, will put a higher load on the battery and it is not uncommon for it to drop the battery level. I didn't verify if it is only looking at the main battery but I am about 99% positive it is, given when the car starts I can see the voltage drop a bit, which makes sense as it is cycling the starter.

2. They said the biggest concern is that the car hits 14+v when the engine/alternator is doing its thing and that it holds that level under load as well as the battery is able to charge some after driving for a bit (which I believe I have verified mine does).

3. Weather will absolutely affect the battery level. When I measured 11.1v, it was in the morning and it was around 20F. The next day it was 11.9v/12v when it was 40F I believe.

4. Replacing the batteries ourselves will NOT void our warranty...but obviously we have to pay out of pocket and if the "autozone" batteries fail, it is not covered (obviously).

5. They did say it could be a parasitic draw but, after almost two months of ownership, the tech said if the problem was that bad I would have likely had the battery die again (which seems consistent with others who definitely have had this issue).

6. The tech at the dealer I bought it from said the most likely situation (for me) is that the truck sat for almost 60 days before I bought it. They likely didn't juice the batteries during that time. When I got home, he figured it was not fully charged and ended up dying. When I took it to my local dealer, they supercharged those bitches, they passed, and I have had no noticeable battery issues since.

7. I mentioned that any other car I have had sits at 12+v and the dealers all said with these batteries, the trucks themselves and their power consumption, that 11v is, again, perfectly normal and nothing to worry about.

8. My personal belief is that the batteries will work fine for now but they are not going to last long and I will likely be dealing with replacements sooner than normal. I will not be surprised if I let the truck sit for 3+ days the batteries may be dead. If/when that happens I now have three dealers I can call and bitch at lol.

I personally feel a lot better about the situation and plan to sit tight for now. But, Christ, I need a drink and a smoke tonight after all the worrying this truck has caused me. Someone please remind me to get a honda civic as my next car. /s

 

[Dan G]

I have my jumper cables in the truck. I am not worried about being stranded off-roading because there is nowhere around me to do this haha so there should always be another car nearby. Though I may still grab something like this: https://www.amazon.com/NOCO-GB40-Ul...cphy=9005648&hvtargid=pla-2281435184058&psc=1

But I've never used one before and find it hard to believe it would work...but if anyone has any experience I'd appreciate the input.

I will buy a set when I get my 2nd truck, Amazon has a 30 day return policy. If I don’t need it within 30 days of owning the truck I will return them

 

[eltaco]

When I turn my truck on but don’t start the engine my battery level reads around 11v. As soon as I turn it on it jumps to and stays at 14.4-14.5 and never drops below that as far as I can tell. Not sure if it’s good that it is 11v after it sat for a night..

So I wouldn’t fret too much on that just yet.

On my 2020 Ram, I recently thought I had a battery problem. First time in 5yrs of ownership I couldn’t get it to turn over. I checked the dash and saw 11v on the display, so I figured it was shot. I replaced with a brand new one, tried to start the truck, and it wouldn’t turn over again. I ended up going after the starter next and that solved the issue. Once I got the truck started up and running, I shut the truck down and again the battery was reading in the 11v range when not started. The truck starts up and drives as normal, and goes over 14v when driving, but when turned off the display shows in the 11s.

 

[frogjbm]

I found a jump start highly rated on Amazon that was 4000A, would that be sufficient?

 

[SeaDog0720]

Friday morning I came out to a dead battery. I tried to jump it with 1000A battery pack (Twice) we have two of them. Neither did shit. I charged the battery but the CEL remained on. Brought it to the dealer today. They said two bad batteries and replaced. Hopefully that's the end of it. Truck has 6500 miles on it

 

[TheBarBack]

I have my jumper cables in the truck. I am not worried about being stranded off-roading because there is nowhere around me to do this haha so there should always be another car nearby. Though I may still grab something like this: https://www.amazon.com/NOCO-GB40-Ul...cphy=9005648&hvtargid=pla-2281435184058&psc=1

But I've never used one before and find it hard to believe it would work...but if anyone has any experience I'd appreciate the input.

It won't jump it... ask me how I know

 

[Irongoats]

Has anyone noticed the power socket in cubby above radio is always hot? Plugged in adapter to power MagSafe adapter from bullet point and went to check a few hours later the green light shows powering adapter? wtf Ram? Can’t remember if c-tech mentioned that in one of his battery videos.

 

[OldSchool]

Has anyone noticed the power socket in cubby above radio is always hot? Plugged in adapter to power MagSafe adapter from bullet point and went to check a few hours later the green light shows powering adapter? wtf Ram? Can’t remember if c-tech mentioned that in one of his battery videos.

That can be configured as always hot or accessory hot only. Search it.

 

[Irongoats]

That can be configured as always hot or accessory hot only. Search it.

No kidding I’ll find it thx

 

[OldSchool]

No kidding I’ll find it thx

I believe it is just switching the fuse position in the fuse block, might even be covered somewhere in the full owners manual

 

[Flyguy69]

 

[frogjbm]

Has anyone noticed the power socket in cubby above radio is always hot? Plugged in adapter to power MagSafe adapter from bullet point and went to check a few hours later the green light shows powering adapter? wtf Ram? Can’t remember if c-tech mentioned that in one of his battery videos.

Same as my 23 Limited

 

[Irongoats]

I believe it is just switching the fuse position in the fuse block, might even be covered somewhere in the full owners manual

Thanks. I saw a video last night on YT university that covered it will check it out this morning.

 

[Adub]

Did anyone ever find out if a portable jump will work? I currently have a Noco AX65 2000A in the ride and curious if will work with the dual battery set up in the Ram.

 

[BLKRHO2169]

View attachment 9038

Or you can turn ignition on, hazards on, and then hold up arrow on steering wheel until vehicle goes into ship mode which is supposed reduce battery draw from non essential systems and modules. Cycle ignition and follow same steps to put back in customer mode. Could be helpful if leaving parked for extended period of time.

 

[RamFan]

I just went out to check ours(never had any battery issues). After about 10 minutes listening to the stereo and trying to find the volt gauge, it read 12.2v.

Chris