Has it Happened

[Mguy]

I'm thinking you missed the part where ChatGPT was summarizing what was said, not doing an analysis of anything claimed.

Actually, I assumed that's what you asked ChatGPT to do, use as it's data source a very verbose screed. Before posting, I asked another AI program to analyze, using the Google searchable internet for data, the same basic question. I got similar answers: Disconnecting the aux battery "can help" ESS problems and that denial of a warranty claim would not likely occur.

Not to go too far off subject, that's been my limited experience with consumer available AI. It's analysis is limited to summarizing what it can read. I assume there are AIs that can use knowledge and judgment to not blindly accept all data, but that might be a ways off for us non-paying customers.

The bottom line here though, buried amongst the wordiness and memes, is that most JL owners don't know what effect the disconnect mod will have when they go in for warranty service. It would be nice, with the apparent likely demise of ESS across the industry, if Stellantis makes clear that the disconnect is an acceptable owner improvement.

Sponsored

 

[Wbino]

Do other cars with ESS systems have two batteries or is that just a Jeep thing?

 

[Ratbert]

Do other cars with ESS systems have two batteries or is that just a Jeep thing?

I'm pretty sure Stellantis is the only manufacturer if you exclude mild hybrids.

About the closest is the Chevrolet Tahoe PPV / SSV - police/special-service trims, but that full-sized aux is significantly more hardcore to run police gear. Most of those vehicles have ESS disabled anyways.

 

[Roky]

Do other cars with ESS systems have two batteries or is that just a Jeep thing?

I think some European models with ESS, Mercedes, BMW, Jaguar, Land Rover, etc.. have aux batteries, not sure about Ford, Chevy etc… I replaced the one in the wife’s Fpace S awhile back….

 

[Twisted10]

i see all these words in posts and ...

 

[Mguy]

I think some European models with ESS, Mercedes, BMW, Jaguar, Land Rover, etc.. have aux batteries, not sure about Ford, Chevy etc… I replaced the one in the wife’s Fpace S awhile back….

@Wbino has a good question. Thanks for your answer.

The Europeans have, of course, a different regulatory system, so we don't know whether, and what, mandates may be involved (and whether they "export" those on their exports).

Also, it's important to consider that a dual battery system can work well with some electrical engineering. A little elaborate though, and a reduction, however small, in start reliability. Jeep engineers did not even try.

It does seem, from my internet/AI search, that Ford and GM don't do duals on any models. Maybe accurate, maybe not.

 

[Wbino]

@Wbino has a good question. Thanks for your answer.

The Europeans have, of course, a different regulatory system, so we don't know whether, and what, mandates may be involved (and whether they "export" those on their exports).

Also, it's important to consider that a dual battery system can work well with some electrical engineering. A little elaborate though, and a reduction, however small, in start reliability.

It does seem, from my internet/AI search, that Ford and GM don't do duals on any models. Maybe accurate, maybe not.

AI Overview

In Engine Start-Stop (ESS) systems, a second battery, often an auxiliary battery, is used to handle the increased electrical load from frequent engine restarts and to isolate critical functions from the main battery. This secondary battery provides power for accessories, ensuring the main battery is primarily dedicated to starting the engine, and also acts as a backup in case of main battery failure.

Here's a more detailed explanation:

• Engine Starting:
  ESS systems frequently turn the engine on and off, which requires a significant amount of power to restart. The main battery is typically optimized for this high-power, short-duration demand.
  
  
• Accessory Power:
  A separate auxiliary battery is often used to power accessories like lights, the radio, and the climate control system during engine-off periods. This reduces the strain on the main battery and ensures these systems remain operational even when the engine is stopped.
  
  
• Backup Power:
  The auxiliary battery serves as a backup in case the main battery is depleted or fails. This ensures that the vehicle can still be restarted and operated, albeit potentially with limited functionality, until the main battery can be recharged or replaced.
  
  
• Safety:
  In some cases, the auxiliary battery can also be used to isolate the high-voltage battery pack from the rest of the vehicle's electrical system in the event of an accident, improving safety.
  
  
• Efficiency and Reliability:
  Using a separate auxiliary battery can improve overall system efficiency and reliability by preventing the main battery from being drained by non-essential functions. It also allows for a more optimized design of both the main and auxiliary batteries, each tailored to their specific tasks.

 

[Jeep Wick]

Tldr, if you want the dealer to work on your Jeep (I don't), make sure you reverse any questionable mods like this.
Unless you're new to driving or been living under a rock, enthusiasts have been fighting with dealers about this for decades.

 

[jeepingib]

The A.I. summarized versions are not very good at actually explaining the nuances of these complicated systems. By reading them you would think that they are perfectly fine, and no issues could be had by using them. However real life use has taught us through experience that it is not as reliable as a standard starting circuit, and has a tendency to allow the auxiliary battery to drain the main battery.

 

[Ratbert]

The A.I. summarized versions are not very good at actually explaining the nuances of these complicated systems. By reading them you would think that they are perfectly fine, and no issues could be had by using them. However real life use has taught us through experience that it is not as reliable as a standard starting circuit, and has a tendency to allow the auxiliary battery to drain the main battery.

That's not been my experience when interacting with ChatGPT. Try asking it "What are the issues with the aux battery in JL Wranglers?" and you'll most likely get back an accurate assessment of the issues involved.

 

[Terrymo]

That's not been my experience when interacting with ChatGPT. Try asking it "What are the issues with the aux battery in JL Wranglers?" and you'll most likely get back an accurate assessment of the issues involved.

Doesn‘t ChatGPT use publicly available data which includes Reddit, Wikipedia, and even this forum? If so, won’t the most parroted misnomers be incorrectly weighted and have a greater chance of being repeated on ChatGPT? For example, make sure all your fuses are firmly seated, at one point, was the answer to every electrical problem on this forum.

 

[yokramer]

Doesn‘t ChatGPT use publicly available data which includes Reddit, Wikipedia, and even this forum? If so, won’t the most parroted misnomers be incorrectly weighted and have a greater chance of being repeated on ChatGPT? For example, make sure all your fuses are firmly seated, at one point, was the answer to every electrical problem on this forum.

All of the current "ai" chatbots are damn dirty liars. They will tell you what you think you want to hear and make up whatever they need to make that happen.

 

[Terrymo]

All of the current "ai" chatbots are damn dirty liars. They will tell you what you think you want to hear and make up whatever they need to make that happen.

I don’t understand the technology, but at this point it reminds me of the early stages of Wikipedia where anyone bored enough could contribute an article based fully on nonsense. Garbage in garbage out.

 

[yokramer]

I don’t understand the technology, but at this point it reminds me of the early stages of Wikipedia where anyone bored enough could contribute an article based fully on nonsense. Garbage in garbage out.

Do you remember Akinator? Its that but less reliable.

Akinator, the mind reading genie

 

[Terrymo]

Do you remember Akinator? Its that but less reliable.

Akinator, the mind reading genie

I don’t, and my adblocker says no to that, but I believe you.

i prefer the Magic 8 ball

Sponsored