Replacing your Jeep Auxiliary Battery
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- Опубліковано 11 лип 2024
- If you want to change out your auxiliary battery on your Jeep Wrangler JL or Jeep Gladiator JT without going to the dealer, its completely possible and without going through your topside engine bay fuse box.
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Thank you so much for doing this video. This helped me out tremendously.
Glad it helped!
Best video so far on aux batt replacement.
Thank you for the comment
The best video and the easiest method of replacing the auxiliary battery. It's a good idea to have a few extra push fasteners before starting. The first time is a learning curve, probably took me two hours cause I also cleaned the wheels and liner. I bought a new Mopar auxiliary for about $165 and an interstate for the main about $257. The dealer wanted over $800. Thanks again for the great video. Peter
Glad to help.
What battery did you use for auxiliary replacement?
I need to replace mine in my gladiator and I was dreading going through the top. Thanks for this info
Glad to help
Great video - Thanks for sharing. Changing mine out today. Got the Optima Yellow Top with 880 CCA and Duralast Platinum Aux from Autozone. They give a 10% Military Discount as well.
Nice
Best help I've see. Thank
Glad to help.
Thank you great video
Thanks for watching
thanks for the video
Thanks for the support
if you don't use the ESS system, or have a start/stop eliminator, you can also pull the F42 fuse (ESS fuse), and disconnect the negative terminal on the aux negative cable that connects to the main batt negative post, and never deal with the aux again. pulling the fuse and disconnecting the cable apparently disables the aux without throwing dash alerts.
Interesting
Your aux battery might not be bad. I think your N3 fuse is smoked. Because there are two batteries, when you disconnect off the main, you will still have 12 volts from the aux battery (Test this if your Aux is not dead). So, if you ground the positive cable, boom, the N3 fuse is history and the aux battery can no longer charge, therefore, it gets discharged all the way. Anyway, I learned the hard way. Hope this helps someone.
That’s an interesting way of looking at it, though in this case not sure it’s applicable. My batteries are both doing great.
I think you removed 2 "studs" or something from your old battery and screwed them into the new battery as terminal connections. If true, what tool do I need? You say something on the vid but it wasn't enough for me to make sense of it. thanks much.
You need e bits. They are like the torque star bit female version so instead of putting the star into a bolt, the star fits around the bolt. Like a hex head only star.
What are the symptoms of the aux getting low. I have not changed mine yet but am dreading it. I will probably use this method although I hate to have to lift the car and remove the tire.
Typically your auxiliary buttons not being available. Your jeep will alert they are temporarily unavailable. When it gets even worse you can drive for hours and the battery will not recharge, auxiliary will still show unavailable.
Slow starter and dimming horn
@@entombedentity7059 dimming horn?
The start/stop function and the warning light for it came on in my 2020 Gladiator two weeks ago. I took it to the dealership today and they replaced both batteries. They said the auxilary battery was failing but replaced both as a precaution. Reading on some Gladiator forum this appears to be a common issue and replacing the batteries appears to be a common solution. Unfortunately, I feel that replacing the batteries isn't correcting the actual issue just putting it off until the new batteries die like the old batteries.
Well, I haven’t had any battery issues with my gladiator. It’s been about a year and a half. Most of these batteries start failing at their warranty life span of 3 years. The reason I believe I have seen a couple issues on my wrangler is that it has never been used to drive daily the way most do. Before I handed it over to my wife, I drove it once a week. She drives it daily but rarely over 15 minutes each time. So really I just think over time those mopar batteries slowly die. How do you use your gladiator? Are you driving daily and over 20 minutes each way?
@@ExfilOffRoad I work from home so it leaves the garage a couple days a week for errands. Every other weekend I go on a trail ride for half a day or more. My Gladiator is under 10k miles so the limited driving does allow for discharge between driving and less opportunity for fully recharging. Arizona heat also eats batteries. I purchased the Gladiator new less than a year ago. Having said that, my 2013 JKU, obviously without start/stop, kept the same battery for three years with the same driving pattern. Upgrading the battery feels like the right first move but I "feel" like this is an issue with the proper charge being supplied to the battery. I do not have the skill set or tools to evaluate that though.
@@chrisj6151 that makes sense. I’m in Arizona as well. I do believe the start stop is an issue as well. Did you get the turbo diesel?
Excellent video. I noticed you have gas struts for the hood. Can you share the make and model?
The auxiliary battery is for the stop start when so your jeep turns off when you stop at traffic light to save gas.
What model battery is that for the auxiliary want to make sure I get the right fit
The group size is 401
@@ExfilOffRoad thank you 🤙🏻
So will the gladiator not turn over if the Aux battery is bad? Everything works, but it will it will not turn over.
That’s a new one, did you try jumping it, might be your aux is ok but the main is dead.
I just had this issue with my jl.. I replaced the main battery today so now it starts back up fine but now my dash says start/stop is in protection mode so I guess I should’ve changed the aux battery too
@@ExfilOffRoad I did not. Just jumped the gun a replaced them both.
Thank you My question is when you reinstall your fender liner dose it snap back in? our do you have put new retaing clips in. I couldn’t tell when you were snapping the liner out if you are breaking the retaining clips with your tool
If you use a trim tool, you can use the same clips.
You didn't have to use new plastic rivets? Puzzling, I always cut 3 of them. The other ones the liner slides around. @@ExfilOffRoad
Where and how much you buy the auxiliary battery?
Got the auxiliary battery at oreilly, any parts store should have them. It cost about 100 bucks with giving back the core of the old one.
How are the batteries holding up?
Well, thanks.
Just an FYI, on a 2020 there are THREE 10mm bolts in the fender liner
👍🏻
could a dying or dead secondary battery cause dash lights to come on and off like christmas tree?
I would not thing so, that’s probably an issue with your circuits.
@@ExfilOffRoad thank you it was faulty TIPM
Is the inner fender now disconnected from the rivets on the fender? Why not just pull off the entire fender?
It is not, pulling the fender is much more work
@@ExfilOffRoad Did you have to replace the rivets?
No, use a trim tool and you can re use them.
Im contemplating pitting in a dual genesis battery system when the time comes.
That might be the next step if this auxiliary fails again
The dealership wants to charge me $770!! 😩😩😩
You mean the stealership, and now you can do it yourself.
Yes thank you 😊
if you buy a mopar aux batt, they should come with 36 month warranty, and you can exchange it with the dealer for free, practically indefinitely as long as it fails before 36 months and you keep your receipt
Why would it need an auxiliary battery? Stupid design.
Agree. They use it merely for start stop and aux buttons
If you remove the aux battery then connect the positive from the aux battery to the positive of the main battery then tie the aux ground out of the way you wont need the aux battery anymore. I removed my aux battery 4 years ago.
Does your auto start stop still work? If so, how’s your main battery held up?
Yes the stop start still works because the aux battery is connected to the main. I dont have any issues with the stop start draining my main battery because I disabled the stop start as soon as I bought my Jeep. Ive never used it and will never use it. I run a winch and offroad lights and havent had any issues with draining the main battery. I did this 4 years ago and I have 120k miles on my Jeep with no issues.@@ExfilOffRoad