aux battery

Hi! I’ve been dealing with a problem with my Wrangler 3.6 for a week now. I replaced the idler pulleys, and to get to them, I had to remove the alternator. First, I disconnected the main battery, then the black cable from the alternator, and continued with the work. After reconnecting all the...

Having read several highly informative posts about AUX battery issues on this forum, I strongly suspect I too am victim of the same. I thought I will share my symptoms and seek second opinion. Do you concur, the following behavior most likely indicates a failing Aux battery? 1. 2021 JLU...

Our jeep did not start and the batteries are five years old so I decided it was time to change out both the main battery and the auxiliary battery. The auxiliary battery is a little bit of work to get to, but after watching a YouTube video I was able to get it removed and take it down and get a...

How do you know when to replace the auxiliary battery on the 2018 JL jeep wrangler?

This issue has been touched many times here, but none of the solutions have worked for me. A good while ago, my 2021 Rubicon (purchased Nov 2020, currently 29k miles) started requiring 2 attempts to start the engine. I'll attach a video of what happens EVERY time, but everything cranks...

Good evening everyone I had a quick question. Two days ago, I went to start my Jeep and the head light flickered and the jeep did not start. I did it a second time, same thing. The third time it finally started. I did some research and they said it could be possibly the battery on your key fob...

Newbie - Q's about battery + aux battery

Hi all, I apologize if this is the incorrect thread. I mostly lurk but don't interact much! This weekend my 2019 Unlimited Sahara died on me. Had to jump it and drive 3 hours home (I was out of town, conveniently). Had no issues on the drive home, but it was running the whole time. Jeep was...

I recently installed an Odyssey PC950 auxiliary battery and a Redarc BCDC1225 controller using the bracket from American Adventure Lab. The fit is perfect in the rear cubby and everything is hidden away under AAL's MASS platform. So far I've connected two 12V plugs and two dual-USB plugs. One of...

I am planning on getting the VO Switch JL100 switch system with 8 switches. I want to connect 2 KC slimlite led’s, a 30 inch light bar, and eventually I am going to get Baja designs lp6 (two of them) and the Baja designs sae fog lights for road use. And I might get some other lights in the...

So after reading and reading I decided to make my own post to see if anyone is expierencing the same problem as I am. The events: - 1 month ago my car failed to restart from start stop feature at a red light. Was able to jump and go about my day, continued volt watching on dash - 2 nights ago...

Hello, just bought my first wrangler this year in January. It’s a 2018 JLU Sport S with 41,000 miles. Just last week after stoping at a store when I went to leave my Jeep wouldn’t start. I had power but no turn over. I used my portable jumper and that didn’t work. A friendly stranger then used...

I've seen quite a few posts related to failed Aux batteries causing flaky or dead electronics, stalling and failing to start/auto restart. I've come up with a simple way to temporarily bypass a bad Aux battery (also blown PCR fuse or bad PCR) and get back on the road. Warning - this post...