MAJOR JEEP PROBLEM - How To Fix It?!

If you've ever experienced a dead battery in your Jeep, especially if its a newer Wrangler JL or Gladiator, trust us when we say that you're not alone...AND, there's a fix. It's a known problem that newer Jeeps equipped with an auxiliary battery can leave you stranded with a dead battery. And since generally the cause is the auxiliary battery itself, rather than your primary battery, jump starting the vehicle like normal doesn't always work.
So we decided to finally make a video going over the dead battery issue, what to do if you find yourself stranded with a dead battery, how to fix it by removing the auxiliary battery from your Jeep, and the ultimate fix to make sure you're never stranded with a dead battery again - an Antigravity Battery.
To check out more Lite Brite Nation content & merch, click here → linktr.ee/lite...
And you can learn more about Antigravity Batteries & get one for your own vehicle at antigravitybat...

[@jeepgreatstories]

You probably don’t remember this, but about a year ago I was at your place, Chris and Bec were installing the rear locker on my JK and my buddy Andy was helping you with the coil overs on the Juggy. The juggy didn’t have a battery in it, but we were able to use my jump box to start it… that’s the jump box you should get. I love that thing and it’s saved more people that I can remember. Well… I guess you don’t really need it now. LOL ❤😅

[@martinklaus2203]

I solved my aux battery issues by installing the Genesis dual battery system. Absolutely love it!! That is how all Jeeps should come from the factory.

[@dayesloope2221]

More info please!

[@martinklaus2203]

@@dayesloope2221 kzbin.info/www/bejne/qIGQmIqBrpKMb9U

[@HoldMyBeerJeeping]

How much of a PITA was it to install? I am considering one of those dual battery kits for my JK. About to add three new amps for the sound system. According to my installer, I should be ok as is, but I have my doubts. Any input is appreciated.

[@CarlosHerrera-di2fz]

I literally within the last 4 days began having issues with my 2020 wrangler starting via remote start and this morning actually had to jump start it. I will be replacing the main battery and will look into deleting the auxiliary battery, as the auxiliary has not worked for the last year. Great timing on the video guys, thank you.

[@c2protect]

You guys need more dirt bikers in your life. These are the only batteris we use. Im glad your lifestyles have afforded a Ferrari and toys to play. Congratulations on life changing supporters and dedication. Take care and blessings to you two.

[@bolds52]

Love your channel. I had to comment here. I have been a technical trainer for several European car manufacturers. On newer vehicles the module that controls the charging rate is programed for different batteries. For example a BMW can be programed for the earlier lead acid batteries (the ones that you have to check the water level) or the later deep cycle batteries. While the batteries perform fine, they can damage the alternator. I don't have experience with changing out a deep cycle battery with a lithium Ion battery, but it could wind up damaging the alternator or the module that controls the charging system. Keep up with the great videos!

[@rwcoyne]

Genesis offroad has a sweet dual matched battery setup. I've been running it for a couple of years now without issues. it isolates main battery from the other battery

[@jad21964]

Can you do a video on "How to delete your aux battery".. ? That would be great. 🙂

[@Jackal_Blitz]

You pull fuse F42 and disconnect the aux battery lead from the main battery (the L-shaped one that sits beneath the flat one). Electrical tape the shit out of the aux lead and zip tie it out of the way. Done.

[@kanenine5838]

Im glad yall covered this, just picked up my 2023 JL on friday! Yall definetly did the most IN DEPTH on this now! This is all solid info!!!

[@PynkPwny]

So the caveat to this conversation is which engine you have because you may not have the small aux battery.

[@kanenine5838]

@@PynkPwny v6

[@PynkPwny]

@@kanenine5838 eTorque? if not then you'll have one if it's an eTorque then you won't

[@davidmorgan2529]

I have been having that exact problem with my 19 JL, thank you!! Your channel is great

[@rayat895]

I'm absolutely gonna get myself one of these Antigravity batteries that's so cool!

[@dob1662]

Your so tall, says Kevin like he only just noticed, keep these how to videos coming, I'm sure there's a lot of owners who need a head's up, thanks guys 😋

[@gen2-x364]

Could have hooked up your battery cables to an auxiliary power jump pack to retain your vehicles settings while swapping out your battery.

[@mcoffroadinaz4075]

I love BMS LiPo batteries. I've done the Genesis Gen3 dual system for now, which does a quasi-battery BMS for the lead/acid batteries.

[@offroadsoda]

I will be keen on the short and long term on this. LI batteries are not meant for extreme temperature conditions. Failure and Fire are both risks under extreme heat and cold circumstances. I can't use this in Montana as the BMS would likely not allow a charge half the year. Heat under the hood brings other risks. Hope you found one that tolerates extremes and if you did, I'll be looking to get one. Have yet to find one that wouldn't bring risk under the hood.

[@2superblus]

Think again my friend. These Survive Wisconsin winters without issue.

[@offroadsoda]

@@2superblus like i said, i'm open, but i have not seen a formal or even informal fit test yet survive super cold and hot under the hood for LI. Open to success stories. Good to hear you have realized success with this. May i ask, is this under the hood or, like the vet in Kev's case, inside your vehicle?

[@2superblus]

@@offroadsoda it is under the hood of an FJ cruiser. Theses have been tested by folks who were doing trail mapping for the USGS in the Arizona desert in summer as well.

[@Tinker3504]

I run LiIon in my dirt bikes. I sometimes start the day in the 20’s. I run the headlight for about 3 minutes and I’m ready to rip. (It starts right up) This is certainly an area to watch, but unless the battery is outside for DAYS under 20 degrees, it should be of little concern. This comment is as of late 2022. I absolutely acknowledge this was and still sorta kinda is an “issue”!

[@omarvilla7476]

@@2superblus what brand of lithium batteries are you running?

[@jim6682]

This was very helpful. Just had my buddy call me up with his 8 month old brand new JL. The battery was stoned and he tried charging and jumping it to no avail and couldn't start the engine. I used your suggestion and jumped it with my jump box to the auxiliary terminal and it fired right up. Guess the Stop/Start battery must be shot already. Thank You !!!!

[@JasonWh]

Just ordered the 94R for my 2021 Power Wagon. 90Amp battery with BMS and remote emergency starter and backup cell? Amazing! Expensive at $1000 BUT it's well worth it for when waaay off grid and the truck won't start.

[@MsRadu1234]

LOL just fyi I dont think any of us here follow you just for the rating of the products. Like me I think most of us just love your spirit.

[@evintacy7272]

You guys are so awesome love this channel so much! Chris is one bad ass mechanic he needs hear it he is amazing!

[@OneEyeCustoms]

I’m not sure you showed how to exactly eliminate the aux battery. Does just removing it eliminate the special wiring to it? If it’s not there, do you need to do something special with the wiring?

[@slowridefpv9668]

Yea, Chris and Bec doing a how to step by step would be helpful.

[@Tinker3504]

You have to tie post one and two together. He said he did that but didn’t really mention that again after he said to wrap up the hot wire after you yeet the aux battery. You can also put the positive that was on the aux battery to the positive on the main battery to skip the post one and two jumper.

[@OneEyeCustoms]

@@Tinker3504 thank you!!

[@omarramirez2335]

That’s because they already don’t have one if you were watching their 426 swap there was circuits that were removed one of which was that Aux battery

[@andymarshall4014]

Strongly stand behind antigravity batteries. I use them in my motorcycles and race cars. But I’m a physcopath and use the smaller ones that look like there meant for lawnmowers to power my cars 😅

[@ExpeditionaryJeep]

Hello! I have the original main battery, and a 2nd aux battery on my 2019 JLU. Before the 2nd aux battery gave up I had installed a solar panel on the hood. It’s been a year now and knock on wood, my main battery has not died on me. BUT this antigravity battery is a great upgrade! Thanks for sharing this info! More power to your channel! 🤜 🤛

[@TopSecretinNC]

Haaaa... Thanks for the hook up! Thanks Lite Brite!

[@davevd4252]

The anti gravity Battery was a nice tip

[@pas84av2]

They (car companies) marketed auto stop/start as a gas saving feature, but it was really an emissions standards feature. A feature which most consumers, unfortunately, don't give a shit about.

[@timmayer8041]

We have issues with the push button start not working in the cold, I've tested the fob, they say the battery is good, now I wonder if it's the aux

[@Daveinet]

Was anyone picturing Brit falling over backward and landing on the Ferrari, dropping the battery through the front windshield?

[@carlt8188]

No

[@CJLane-62]

Yep!😂

[@jamescole6846]

Me

[@christianguymwc1]

Yes and I was worried for her rounded over back as someone who has thrown my back out way too many times in life lol

[@adammiller5166]

I understand it’s a lithium battery and you’re basically buying a jump box as well. But my god that’s a lot of money. Hope it works out well for you guys. I’ll keep watching and I’ll be waiting on that 10 year review

[@SCOTTEDWARDS111]

Hello Guys!!!! Smart video! Here’s a smart tip: buy a Halo Bolt. I’ve helped many motorists with dead batteries. With the Halo Bolt you can charge the battery. In addition, it fills tires with air too! Plus, charges cell phones and has a flash light too! Buy at Amazon or QVC. The Halo Bolt, my smartest buy ever!!!!

[@kevinkc3onohelijeepworld953]

Check the alternator output it’s fused in that high current fuse array

[@johnnyzr1204]

Pull the F42 fuse and disconnect the ground wire for AUX battery. That is the ground wire towards the fender, the smaller one on the post. That took care of all my problems.

[@DavidGZavetsky]

Did doing this throw a code or light a light on the dash??

[@mrfixit____3651]

Curious to see how well the lithium battery performs in sub zero temperature.

[@2superblus]

Wisconsin winter rated since 2018.

[@billrobertson9370]

Can you just move the second lug on top of the first lug to bypass the stop start battery?

[@johnswicegood7000]

The only thing I really need my auxiliary battery for is the remote start feature. Living here in Texas, sometimes it's in the high 90s at 6:00 a.m. in the morning when I get up or it can be 0⁰. So I have chosen to keep my auxiliary battery.

[@angowT]

I have to disagree with your assertion about jump starting. I just bought a 2018 JL and one day it wouldn't start. I tried charging the battery ( which was a few months old) but it wouldn't hold a charge. Id only had it 3 weeks, so i called the dealer requesting a replacement battery, or to get them to locate a drain. They told me that it was the aux battery, which i didnt even know i had and to jump start it return it to them. I jumped it no problem just using the main battery terminals. The dealer told me that the main battery had been replaced but that the aux was the original, so they put a new one on. I have now disconnected it. Great vid and great channel. ( Maybe the UK version wiring is different?)

[@randysmith5466]

When you eliminate the auxiliary battery does it automatically eliminate the stop,start feature or do you have to disable it also? Thanks.

[@nickburns5571]

Look up what lithium does when you put it in water or what happens in an impact. They go boom…

[@1992danib]

Wooo first comment! 😎 Love you guys, love the content and effort put in, thank you very much, be safe and have fun! MLR!

[@felixbinette9752]

Thanks you two we just got our jl Rubicon 2020 love it. But hate the stupid auto start. Just a 4 banger turbo. Absolutely love our jeep way better than the 99 TJ.

[@mrnine324]

That is indeed a glorious sound coming from the Ferrari! Also, I'm totally amazed at the fact that we now have "smart" automotive batteries! See yall tomorrow LiteBrite!

[@justinbatchelor2418]

You should get ahold of stradman and see if he has any hook up for some exhaust on the 488. You guys have a pretty bad ass assortment of rides. I love it

[@wendellaustria1962]

Check out your alternator ,it should be putting out 13.5-14.5 volts @ idle. If it’s lower than that it could kill your new battery like it did the rest. Antigravity batteries work great. Great video!

[@zd533]

This is not quite true with modern "smart" alternators like the JL and JT have. Output voltage can go as low as 12.3v or so, depending on the engine loading, battery charge, etc. I had the same battery issue within a couple of months of getting my 21 JT. The small aux battery fails typically and subsequently kills the main battery. This is not related to the alternator (unless of course the alternator is actually bad)

[@mrmgjohnson]

No... at idle you're Jeep should be sitting at 12.7 or so on a fully charged battery, as you drive, you will see the 13.5-14.5 v you are talking about.

[@jeffwisemiller3590]

I had to remove an 8D (tractor battery) from a boat but the problem was where it was located. It was behind a 10" hose in a 3' high space behind a wall. I was bent over at the waist, sitting on top of a fuel tank & leaning over the hose while my back was against the roof. I had to lift it onto my lap (good-bye pants) & slide it sideways out the hole I'd crawled into. Those batteries weigh 170 pounds or more!

[@Mike-iy7bk]

FYI, I have a JL (2023 High Tide) 3.6 manufactured 1-23 by the vin sticker. There is no longer a aux battery below the fuse box. first clue was the neg batt. cable has changed to a single large wire. (If your 22 has the single wire neg connection it's probably the same). there is still they tray but no longer a battery. Not sure if they changed the system due to issues or not, just thought i would save you some time. I didn't see a TSB addressing this.

[@bradchampagne6167]

You guys rock! Do you miss Colorado Springs?

[@donmcneal233]

Hey kids..., another good vid. Cool battery tech. And I knew Brittany could get battery too! Good for her! Stay safe America...!

[@stormw777]

I think I will get one of these batteries. But my 2018 jl 2.0 turbos battery has not yet died in 50000 miles. Bit I think I will be proactive. Thanks for video.

[@danbierschbach7743]

Would you please do a review on these in the future to see how they hold up?

[@LiteBrite]

Definitely!

[@jeffro8373]

Great video guys!!! Thank you for sharing this, that would suck so bad if you was miles off the beaten path!!❤❤💯🤙

[@ItchyBurrito]

These type of things are exactly why I went with the less technical JKUR instead of the newer JL.

[@MJ-Str8Thriller]

Could you install a capacitor into the aux battery location? I’ve used them in stereos systems until lithium batteries tech came up. The Ferrari should have a fob with its fob. If the doors are locked how would you restart the battery if there’s no Bluetooth app paired with the battery?

[@futzalfan]

Sugar Honey Ice Tee, now you tell me! Oh I just missed this video and paid for a new Aux. And when your stuck, your so stuck. Good video guys!!

[@Krystof.Veritae]

Great vid guys ….. so I got a quick question how do I charge the AUXILIARY battery without taking it out ? I got a slow drip storage charger ….. what posts do I use and how would I hook it up ….. I do charge the main by connection to Neg/ Positive posts but wondering how would I do that for AUX battery?…. Any help appreciated ….. I love the channel and will definitely be getting the new battery in the vid \_/

[@quincydsouza7253]

For some reason when I replaced JL weak aux battery, auto stop/start and climate control with A/C started working. It wasn't only the auto start/stop which stalled

[@lonniet.2816]

BRIT. CHANGING OUT A BATTERY IS FRIGGEN HOT!! THANK GOD FOR WOMEN LIKE HER! LOVE ALL YOU DO.

[@hectorsansores1443]

would this be the same as the Eco Diesel? I want to do this just couse i hate the stop/start.

[@henrycarlson7514]

So Wise , Thank You for sharing . To bad I live in Northern Minnesota , I need something that can survive -55

[@TangoLimaKilo]

Hey Kevin, I'm not sure about the antigravity battery, but alternators get burned up because there is something about the LiFePh batteries, where they can not reach a full charge from an alternator. So your alternator is overheating and burning out. There is a fix though, if you add a lead acid battery to your Jeep, the alternator will stop trying to charge.. You might ask around. Just sayin'.

[@kjve9009]

this also happens on other newer model cars with the auto stop start. what i recommend is removing auto stop start. some vehicles literally just need the fuse removed. wires removed. its not just a jeep problem, its also a hybrid problem( often times its the alternator)

[@bendmacmanufacturing2744]

My Jeep grand Cherokee 2015 has original battery in it !!!! We will see if I'm as lucky with my Jeep Rubicon 4xe

[@raysmith7335]

Thanks for the info!! Our 2018 aux battery is on the fritz. Will be following your advice👍

[@LivingTheDreamUSA]

How did the new battery last?

[@hiddengem6866]

"Even a Britney can do it" 😆 You guys are awesome! Thanks for this info ..same thing happen to my gladiator but thank God it happen at home where we live in Big Bear and ended up getting a new battery! Gonna look into purchasing one though for peace of mind! Thanks guys! CHEERS!

[@pulkpuller]

Lol take the fuse to the charge control out and the neg for the aux battery ! You don’t need to get to the aux battery at all and save a pile of time

[@robertkoch1327]

Good advice, please have Chris give us complete how to on aux bat removal

[@hibiki54]

Hey, nice! Their HQ is literally right down the street from me in my hometown.

[@Daveinet]

BTY there is something that sounds better than the Ferrari. Try a CBX with a 6 into 1 header running wide open.

[@deadonasunday]

Deleting the Aux doesnt work that great, at least on a 2020 JLU Wrangler. I did the delete and pull the 42 position fuse and my Jeep spazzed out when going to start it. Also note, doing an Aux battery swap through removing the power distribution center is risky! Its better to pull the passanger side front time and fold back the fender well molding to access it that way. Doing mine took a total of about 40mins that way.

[@coryballinger5307]

I’m going to get one for my fj. It’s always dying.

[@2superblus]

I am running a group 27R 60ah Antigravity in my FJ cruiser

[@quatre0492]

This is one reason (among many others), I went to genesis for their dual battery system.

[@KarlMathern]

Focus and Mustang only fords that the website says it will fit.🤔

[@2superblus]

What vehicle are you looking for a battery for?

[@bige5107]

Have a 2023 Jeep grand Cherokee altitude x same issue fuse was blown between the aux and main killed both !

[@seekingadventures]

One thing to check is how many amps does the BMS produce, not sure how well it will work for winching.

[@5183p]

I have there jump box and it’s great and so is there solar generator.

[@davidshettlesworth1442]

Wow! this is golden! Great Job.

[@matthewmuellner]

I disable by the plungers in the hood. Do I still need to delete?

[@LiteBrite]

So that does disable the start/stop function, but the auxiliary battery itself can still drain your primary battery.

[@jasonsutton1074]

Has to be a Chrysler thing! I'm on my 3rd battery in our 2017 Fiat 500x.

[@johncarter9054]

Lithium iron phosphate batterys are fine in warmer climes but can be absolutely useless in real cold conditions. There seems to be no substitute for FLA type units in real cold weather. Common sense says stay in warm climates if you use these LIP's

[@serpentsbydesign]

Do you still have to remove the AUX battery if you have the LI battery? Do you have a video on how to remove the aux battery?

[@timmayer8041]

Do they make marine batteries?

[@33SkidRowe]

I'm sure you can find an exhaust system to make the Demon Child sound like the Ferrari. Personally I think the Ferrari sounds too tinny. Just get Bec to tack some rattly strips inside a Cherry Bomb. Should do the trick. Had the aux battery failure on my 2020 Gladiator. If you keep the jumpers on for about 20 minutes with the other vehicle running it will eventually start once the battery getts enough charge on it. Mine did even though the aux-bat was bad. At the time I didn't know it had one.

[@johnmadsen37]

Hook the cables up to a jump box or a changer before disconnecting, then the Jeep never looses power.

[@ralphcasados8862]

Hey that battery is sure expensive they must be proud of that baby. LOL Thanks for the tip

[@airtek4809]

Thanks Kev.

[@SimcoeEnergyHomeServices]

When the battery is not fuctioing properly does the jeep have Christmas Tree light show going on the dash????

[@nickjamesinternational]

I have a JL, and I don’t have an aux battery. Not all models have the aux battery.

[@garretlewis4103]

Two things. Need to delete that aux battery on our Gladiator. Need to research those Antigravity Batteries.

[@SvtRaptor13]

I have that battery on my ktm 690 enduro

[@yoyartube]

If that's a LiFePO4 battery you may need to add heat shielding in the engine bay around the battery

[@2superblus]

The battery is internally insulated.

[@cjg1482]

Apparently you can access the auxiliary battery by removing the inner fender.

[@951media]

Great concept, which model number for the anti-gravity batter should we get for our Jeep JLs?

[@justino8935]

Really hate how needlessly complicated modern vehicles have become

[@antipro6537]

I saw you can move a fuse to a different spot to keep the Aux battery from always being ‘on’ and available for power. You can set it to only provide power when the Jeep is running. Would this solve the aux battery issue without having to disconnect the aux battery completely?

[@steveswartout7408]

What are you going to do when the temperature drops below 35ﾟ and your lithium phosphate battery won't charge?

[@LiteBrite]

Well, we were just in sub 20* temps for 3 days with zero issues. And we know a guy in Wisconsin that’s been running one in his FJ for the last 3 years without issue.

[@justinbatchelor2418]

Those batteries are pretty sweet. I see them for about $650 to almost a grand. I probably won't be getting one for my daily 94 yota

[@johnorr8094]

Since 2004, I replaced the battery in my beloved Jeep Wrangler X three times. I plan to keep my beloved Jeep because it looks like a bulldog riding a skateboard. Also, my Jeep TJ is the last of the AMC Jeeps.

[@rckjeep]

$1200 battery! wasn't expecting that

[@rmjryost]

I went to go swap out the aux battery from my JLUR and IT WASNT THERE. PO uninstalled it. Took out the cables too! Now that the battery and cables are gone, what’s the point of jumpering the two posts?

[@gabrieldalcomune3044]

As a jl owner with etorque, can I throw an antigravity battery into my jeep too? Hypothetically, if it were dead. Do you still jump start it like a normal battery?

[@FranklinHicks-qs4gs]

Bless the man who invented yoga britches

[@RichValentine1972]

I have owned Chrysler products since 1995. Not one of them was I able to jump off of or to.