Battery Dead

[Deange2001]

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.

According to the manual you can use a portable booster pack. That said, from practical experience, keep the jumper cables handy.

 

[dirtlimo]

View attachment 9038

Thank you for this FlyGuy. Do we see any con to having the truck in this state all the time? I guess it could mean some of the app info would not available?

 

[frogjbm]

So I assume to come out of storage mode you follow same process?

 

[Gassywizard22]

Debating on whether or not to buy new Duralast AGM batteries for both main and auxiliary batteries. I’ve been gone for 2 days and left my truck on a NOCO charger the whole time. While driving the voltage fluctuates between 12.3 and 14.1 and hangs around 12.5 while stopped with engine running. I haven’t had any dead batteries yet but after all these dead batteries causing module problems, I’m wondering if it may be best to just bite the bullet and put in some reputable batteries.

 

[gram10]

Debating on whether or not to buy new Duralast AGM batteries for both main and auxiliary batteries. I’ve been gone for 2 days and left my truck on a NOCO charger the whole time. While driving the voltage fluctuates between 12.3 and 14.1 and hangs around 12.5 while stopped with engine running. I haven’t had any dead batteries yet but after all these dead batteries causing module problems, I’m wondering if it may be best to just bite the bullet and put in some reputable batteries.

i don't want to spend your money, but I would suggest it

 

[Deange2001]

Duralast Platinum AGM Battery BCI Group Size 400 200 CCA AUX14

Shop for Duralast Platinum AGM Battery BCI Group Size 400 200 CCA AUX14 with confidence at AutoZone.com. Parts are just part of what we do. Get yours online today and pick up in store.

www.autozone.com

this was the other battery, FYI you need an e-torx socket to remove the studs from the stock battery and transfer to the new battery

Hey, do you remember what size etorx socket you used? Thanks in advance!

 

[gram10]

Hey, do you remember what size etorx socket you used? Thanks in advance!

its small, somewhere between 5 to 10, I can't remember

 

[Deange2001]

its small, somewhere between 5 to 10, I can't remember

Only thing I can remotely find (other than physically trying it) is maybe an E6?

 

[cconnorhtx]

Hey, do you remember what size etorx socket you used? Thanks in advance!

I just changed out the Aux battery over the weekend to that Duralast and I used a 4mm socket to get the poles out of the OEM battery.

Fit perfect

 

[Deange2001]

I just changed out the Aux battery over the weekend to that Duralast and I used a 4mm socket to get the poles out of the OEM battery.

Fit perfect

i'd be curious to know if you notice a difference with the new battery. I am still torn as to if I should do this and risk the issues the dealer could pull if I have electrical issues down the road...or just get stranded somewhere. Decisions, decisions.

 

[cconnorhtx]

i'd be curious to know if you notice a difference with the new battery. I am still torn as to if I should do this and risk the issues the dealer could pull if I have electrical issues down the road...or just get stranded somewhere. Decisions, decisions.

I have not had my BSM malfunction once (yet) since changing it out. I am still convinced my issues with that are battery related

 

[Webbo]

I have not had my BSM malfunction once (yet) since changing it out. I am still convinced my issues with that are battery related

Curious to hear if you did any specific steps when replacing the aux battery? In one of CTechs videos the tech mentioned something about disconnecting the battery sensors prior to the terminals then connecting the sensors back before the terminals to avoid CEL’s.

Or maybe the CEL will clear on its own or with a simple code reader. Just curious what you saw since these trucks seem very sensitive on the electrical side..

 

[cconnorhtx]

Curious to hear if you did any specific steps when replacing the aux battery? In one of CTechs videos the tech mentioned something about disconnecting the battery sensors prior to the terminals then connecting the sensors back before the terminals to avoid CEL’s.

Or maybe the CEL will clear on its own or with a simple code reader. Just curious what you saw since these trucks seem very sensitive on the electrical side..

All I did was disconnect the main battery first, then disconnected and removed the aux - and then the reversed that order when reconnecting everything

One fun thing was that when I connected the main battery back panic mode activated and scared the everloving shit out of me. I was able to stop that by pressing the panic button on the fob after about 3 times of trying to understand what was happening

I did pop the CEL when I started the truck after (was expecting that from other people mentioning when they disconnect the batteries) but I immediately cleared that with my scanner and everything has been perfect since

 

[Webbo]

Today I noticed my battery voltage down to 13.6 and figured for $150 just swap out the aux battery and see if it helps. Put the new aux battery on the Noco 5 and was fully charged. A few weeks back I charged up the batteries with my Noco 5 and had been steady at 14V but in recent days dropped to 13.6. So figured what the hell, I’ll try a new aux.

First, I didn’t get a CEL after changing it out. I disconnected the battery sensors (main battery then aux). Then disconnected the main battery negative then aux battery.

Put the new Duralast in, reconnected the battery sensors then the terminals. No CEL.

Went on a test drive and battery voltage was stable at 13.9 for about 4 miles. Then out of nowhere, voltage tanked to 12.2 then stabilized at 12.4. I was about 1/4 mile from home and was worried.

I put the OEM battery back in and voltage is back at 13.7V

Anyone have an idea of what happened?

I think some of us (me included) are just hyper focusing on our voltage and seeing sub-14V is actually in the “normal” range. I think I’m going to (try) and stop focusing on watching voltage all the time.. LOL

Voltage with new aux battery after 4 miles:

Voltage after putting OEM aux back:

 

[Mikey Swift]

Today I noticed my battery voltage down to 13.6 and figured for $150 just swap out the aux battery and see if it helps. Put the new aux battery on the Noco 5 and was fully charged. A few weeks back I charged up the batteries with my Noco 5 and had been steady at 14V but in recent days dropped to 13.6. So figured what the hell, I’ll try a new aux.

First, I didn’t get a CEL after changing it out. I disconnected the battery sensors (main battery then aux). Then disconnected the main battery negative then aux battery.

Put the new Duralast in, reconnected the battery sensors then the terminals. No CEL.

Went on a test drive and battery voltage was stable at 13.9 for about 4 miles. Then out of nowhere, voltage tanked to 12.2 then stabilized at 12.4. I was about 1/4 mile from home and was worried.

I put the OEM battery back in and voltage is back at 13.7V

Anyone have an idea of what happened?

I think some of us (me included) are just hyper focusing on our voltage and seeing sub-14V is actually in the “normal” range. I think I’m going to (try) and stop focusing on watching voltage all the time.. LOL

Voltage with new aux battery after 4 miles:
View attachment 13431

Voltage after putting OEM aux back:
View attachment 13432

Forget the battery, let's talk about that dusty ass screen!

 

[Webbo]

Quick update, OEM aux battery back in and holding steady at 14V today after what happened with the Duralast battery.

@Mikey Swift I cleaned my screen for ya now I can read my gauges better.. had my windows down while on a dirt road the other day, inside is a mess.

 

[Mikey Swift]

Quick update, OEM aux battery back in and holding steady at 14V today after what happened with the Duralast battery.

@Mikey Swift I cleaned my screen for ya now I can read my gauges better.. had my windows down while on a dirt road the other day, inside is a mess.

View attachment 13451

Thank you! My OCD was kickin'!

 

[10/4]

Thank you! My OCD was kickin'!

What is battery voltage when the truck is off? I would measure your battery voltage after the truck has sat off for 30 minutes or more. I think once the battery has reached a certain level of charge the running voltage drops down when running? Mine too is all over the place when driving especially on a longer trip, but my battery is always above 12.6V when I test it after it has sat for a while.