Aux battery is still charging

[DeezJT]

That could be an interesting call.. unless you have done mods that included any electrical. Then if they include the factory installed auxiliary switches, they are there to be used. Will be curious to hear what they say.. good luck. Cheers!

I got my Jeep back today and they were trying to charge me 388 for labor due to my winch and aux switches. They said it interfered, but I showed them that it’s only connected to the existing battery terminals. Service advisor agreed and wrote it off. They changed both batteries.

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[Geekjeep]

@Geekjeep

https://www.jlwranglerforums.com/forum/threads/ibs-clear-reset.67955/

Thanks a ton man

So basically disconnect negative and disconnect the bundle on the negative terminal for 10 minutes?

Got it

 

[Marine2947]

I just purchased a Optima YELLOWTOP® DH6 for my main battery and a DieHard Platinum AGM Battery, BCI Group Size 400, 200 CCA for my aux battery. I can't really afford justifying doing the Dual Battery set up.
Total cost for those 2 batteries was about $450. I haven't had any issues yet with my batteries but I have over 36,000 miles on my JTR and go Overlanding/tow all the time so I don't want to get stuck in the middle of nowhere. I'm thinking now that I am over my warranty miles and ride/tow hard that my luck will run out lol. I am just worried about installing the aux battery. Don't want to damage the fuse box.

 

[Bonanza]

Just replaced my aux battery only after getting a constant issue with “charging”. I’ll do the IBS reset and see if that works.

 

[Renegade]

I took mine in last month because it was always displaying the ESS not available/battery charging message. I did this despite pressing the button every time I drive to disable it. I told them I thought the ESS battery was failing, and I had a long trip coming up, and I didn't want to be stuck somewherere. They removed it, charged it, and load tested it, and it failed. They replaced it, and I haven't had further problems (yet). It did have to be driven a short distance to charge again after the replacement before the ESS went active.

 

[Bonanza]

2 days after changing out the AUX battery, and unplugging all 12v power, still getting a "battery charging". We'll see if time changes things. Temperature is 90 in the afternoon, 60s in the morning.

 

[Tim]

2 days after changing out the AUX battery, and unplugging all 12v power, still getting a "battery charging". We'll see if time changes things. Temperature is 90 in the afternoon, 60s in the morning.

Your main battery is also failing. I had the same thing happen. Replaced the aux battery and still had the charging message. Subsequently replaced the main battery and ESS was available almost immediately.

 

[Bonanza]

Your main battery is also failing. I had the same thing happen. Replaced the aux battery and still had the charging message. Subsequently replaced the main battery and ESS was available almost immediately.

Odd. It still holds at 12.6-12.7volts. Maybe it's an issue of load.

 

[Tim]

Odd. It still holds at 12.6-12.7volts. Maybe it's an issue of load.

Exactly. When I had the issue with mine I used my load tester (cheapo analog version from Harbor Freight) and it was at the low end of acceptable under load but totally fine when measuring voltage with no load.

There is a chance your battery sensor is bad but the batteries themselves have been an issue on these trucks.

 

[Sportsbiz]

Your main battery is also failing. I had the same thing happen. Replaced the aux battery and still had the charging message. Subsequently replaced the main battery and ESS was available almost immediately.

This. I had the same happen where I received that message only to find out later while camping that it was running down my main. It fortunately didn’t drain it entirely, just enough to it wouldn’t start but carrying a jump starter saved me. The dealer replaced both batteries as a warranty without question. Literally when I went to the dealer the service tech was all, “oh, another one, it’s covered” without any testing.

 

[Delhux]

This. I had the same happen where I received that message only to find out later while camping that it was running down my main. It fortunately didn’t drain it entirely, just enough to it wouldn’t start but carrying a jump starter saved me. The dealer replaced both batteries as a warranty without question. Literally when I went to the dealer the service tech was all, “oh, another one, it’s covered” without any testing.

I’m convinced Jeep is using me as some sort of sociological experiment, to see if they can botch every service and dodge all warranty service, just to gauge what they can get away with.

I visited the dealer so many times for the ESS charging issue, with them acknowledging the failure, but saying it “passed all diagnostics”.

@JeepCares has yet to explain to me why “is it working?” Isn’t among their diagnostic tests.

It seems to me like it really could be the ONLY diagnostic test any technician has ever, or will ever, require…

 

[Rainman519]

Renegade - how long did your dealer keep you JT? I called mine about this last week and they told me they'd need my truck for 2 days to perform the diagnostics! WTF?

 

[Bonanza]

Update-- replaced main battery too. Still getting the same message.

 

[ShadowsPapa]

......................
There is a chance your battery sensor is bad but the batteries themselves have been an issue on these trucks.

Not just these trucks, but with Grand Cherokees as well........ according to our dealer shop.

 

[Renegade]

Renegade - how long did your dealer keep you JT? I called mine about this last week and they told me they'd need my truck for 2 days to perform the diagnostics! WTF?

I dropped it off on a Monday morning, but they didn’t diagnose it until afternoon. Put in the new battery Tuesday morning, and it was ready in the afternoon.

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