Battery getting worse by the day - down to 30% capacity

[michail]

Just after I got my first oil change I noticed I started getting reduced range from my battery. This was roughly around May 13th. It has been getting progressively worse. I had a CEL and when I scanned it was related to battery voltage. I doubt it was the oil change as it was express service.

I brought it in last week for the CEL and the battery complaint. They logged the CEL as customer states "rough engine idle". There were no notes about the battery voltage I had scanned myself.

Service took 3 days and notes indicate they reset the battery and performed several RRTs.

When I brought it in I was getting 60% range, today I'm down to 30% of my normal range.

Charging takes less time, but the computer thinks it's fully charged with full normal range.

Anyone here had a similar issue? I've not read about anything like this.

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[JollieOllie]

Are you only charging at home? Which charger do you have?

 

[IdahoJOAT]

We've had ours since late-November, haven't seen this.

 

[dougywarren]

dang. Any power decrease while driving from what you can tell? I would assume they would replace the batteries under warranty

 

[IdahoJOAT]

dang. Any power decrease while driving from what you can tell? I would assume they would replace the batteries under warranty

I totally mean to go have them seriously looked at before the warranty is up, if we have it that long.

 

[michail]

Are you only charging at home? Which charger do you have?

I have the OEM level 1 and a JuiceBox Level 2. Using either has the same results.

Power while driving is the same.

 

[DewHawk]

Something is up with either your battery pack or one of the sensors that monitors charge state. I'd get it in for service at a different dealer and have them figure out what's going on. I've noticed a pretty significant improvement overall with mine with the most recent RRT updates and more after shutoff functions taking place that weren't happening before. Sounds to me like the dealer you went to doesn't know what the hell they're looking at.

 

[JollieOllie]

I have the OEM level 1 and a JuiceBox Level 2. Using either has the same results.

Power while driving is the same.

I agree with @DewHawk then, try another dealer. (I was just trying to rule out the charger, but it doesn't sound like that's the problem.)

 

[michail]

All the dealerships seem overwhelmed when it comes to their EV techs. I think they just wanted to keep it simple, do the basics and hope it worked.

Seems it doesn't matter what you tell them is going on with any kind of car. They just diagnose with the computer and that's it.

They have some serious training to do with the market shift coming.

 

[michail]

It's been at the service department for a week now. No word as the service rep is ghosting me.

 

[michail]

I've noticed a pretty significant improvement overall with mine with the most recent RRT updates and more after shutoff functions taking place that weren't happening before.

What kind of shutoff functions have you noticed?

 

[DewHawk]

What kind of shutoff functions have you noticed?

One of the big things is the activation of the engine bay fan engaging with the vehicle shut off. This happens after the engine was at oil operating temperatures near 215 running prior to shutdown. Even after long hot runs prior to the updates, it never did this.

 

[michail]

I finally heard back from the dealer. A new battery pack is on order. I'm not sure why the sudden failure.

 

[sentience]

All the dealerships seem overwhelmed when it comes to their EV techs. I think they just wanted to keep it simple, do the basics and hope it worked.

Seems it doesn't matter what you tell them is going on with any kind of car. They just diagnose with the computer and that's it.

They have some serious training to do with the market shift coming.

Agreed. It’s great that Jeep has been able to to sell a lot of these (recently the top selling plug in hybrid Q1 2022, even beating the RAV4), but it doesn’t appear Jeep has enough trained technicians in the pipeline to support those sales. And this problem will be further exacerbated with more 4xe models, like the 4xe GC.

As far as I can tell, it seems my nearest trusted dealer has one guy fully certified, and may be sharing him at multiple locations, as he is only available for a few days per week on site.

Not to mention, it’s still new technology for Stellantis/FCA - they are still developing best fixes for all of these first generation problems we are running into.

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