VIDEO : HOW TO Replace the Main & Auxiliary Battery on a JL Wrangler / JT Gladiator

[kevman65]

Finally had to change the batteries, 4 years 5 months.
Had to watch the video a couple of times and Eddie didn't run into my problem (Lucky Eddie).

The connection blocks on the bottom of the fuse panel were rightly stuck to their connectors.
They evidently were not seated into the cradle below them.
Had to figure out a way to walk them off without breaking anything and still I was sweating it.

 

[wayoflife]

Finally had to change the batteries, 4 years 5 months.
Had to watch the video a couple of times and Eddie didn't run into my problem (Lucky Eddie).

The connection blocks on the bottom of the fuse panel were rightly stuck to their connectors.
They evidently were not seated into the cradle below them.
Had to figure out a way to walk them off without breaking anything and still I was sweating it.

The first time I did this was for the video and everything just came right off. I've done it again since and the plugs were on there good. I was able to get them off by gripping the plug and rocking them back and forth. Took some effort for sure but nothing too bad.

 

[kevman65]

The first time I did this was for the video and everything just came right off. I've done it again since and the plugs were on there good. I was able to get them off by gripping the plug and rocking them back and forth. Took some effort for sure but nothing too bad.

Had to pry the first one off just so I could get my hand under to try and walk them off.

I was saying bad words for sure. Kept coming in and watching the video and *POOF* they just fall off in the video EVERY DAMNED TIME

 

[GP NOIR]

Apply a very light coat of dielectric grease before reconnecting the plugs. It helps when you have to disconnect them again

 

[piginajeep]

My battery finally gave out at 76k miles.

Now do I just replace both ?

 

[wayoflife]

My battery finally gave out at 76k miles.

Now do I just replace both ?

That's pretty amazing. Mine never gave out but all the signs were there and so I literally just replaced both of mine.

 

[jesse3638]

Been getting a message on our 2021 JLUR when starting "auxiliary switches disabled to charge battery" also now have a "service axle locker system" message and they don't work. Do you think this is most likely a battery issue? Don't really have time nor want to take it to the dealer.

 

[cozdude]

Been getting a message on our 2021 JLUR when starting "auxiliary switches disabled to charge battery" also now have a "service axle locker system" message and they don't work. Do you think this is most likely a battery issue? Don't really have time nor want to take it to the dealer.

Yes. Just replaced my battery for this issue. I let it go for over a year lol

 

[jesse3638]

Yes. Just replaced my battery for this issue. I let it go for over a year lol

Did you replace one or both?

 

[jeeeep]

Yes. Just replaced my battery for this issue. I let it go for over a year lol

also have that message but I like stop/start factory disabled because of it.
keeping it until it doesn't start lol
but I've recently noticed it also disables the factory auxiliary switch panel

 

[kevman65]

Did you replace one or both?

If you're on factory, replace both. Whichever one took a dump is putting a constant drain on the other. Don't buy OEM batteries. THere are better batteries for less money than OEM.

 

[jesse3638]

also have that message but I like stop/start factory disabled because of it.
keeping it until it doesn't start lol
but I've recently noticed it also disables the factory auxiliary switch panel

There is a button you can push to disable that feature...haha. No need to strand yourself

 

[jesse3638]

If you're on factory, replace both. Whichever one took a dump is putting a constant drain on the other. Don't buy OEM batteries. THere are better batteries for less money than OEM.

That was my thought exactly. We have a local battery shop that usually has some good deals on batteries.

 

[cozdude]

Did you replace one or both?

Only replaced the main battery. Wanted to do both but really didn’t wanna spend another $150-200 on a aux battery at the moment

 

[jeeeep]

There is a button you can push to disable that feature...haha. No need to strand yourself

where's the adrenaline rush in that? lol

 

[bobfriesenhahn]

There is a button you can push to disable that feature...haha. No need to strand yourself

At one time people were willing to insert a key, and then turn it. Now pushing two buttons is just too much!

 

[jesse3638]

Well had to go jump my wife's jeep tonight so I think it's time to replace the battery. Probably only do the main until I have some extra time to do the aux.

 

[Scoop315]

My JLUR, 3.6 manual won’t start tonight. It’s getting down to freezing temps in Philly. Looks like tomorrow will be experiment time to see how good or bad I am at pulling both batteries.

 

[kevman65]

My JLUR, 3.6 manual won’t start tonight. It’s getting down to freezing temps in Philly. Looks like tomorrow will be experiment time to see how good or bad I am at pulling both batteries.

Go easy on the plastic pieces, they will be brittle. Careful with the big electrical connectors under the fuse/relay tray.

 

[AZVAJKU]

^^^^^^^^^
Definitely go easy on the plastic!