Battery drains over night

[suitter]

I have a 2023 JL with the v6 eTorque motor. Started having a battery drain overnight. Has anyone had problems with the battery.
It is only two years old. any insight would help. Did a test and the drain is only .07 amps.

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[ScotM]

Did you rule out any aftermarket accessories? Other than that, it can be a long fuse by fuse process. There are a number of Jeep specific videos on how to approach the problem. That is a low draw, but still above expectations. You should check the rear cargo 12v and see if it is always energized. There is a fuse swap to change that to acc mode enabled only.

 

[Terrymo]

What month and year is the build date of your Jeep?
Is this the factory original battery?
Have you fully charged the battery with a reputable battery charger?
If so, what voltage do you see at the battery terminals without the engine running after charging, and the next morning prior to starting?
How often and for what distance is the Jeep typically driven?
What charging voltage do you typically see on the dash while driving?
Have you had the battery load tested?

This information will help others give you better answers.

i preemptively replaced the battery on my 23 etorque after a little over 2 years. With my new battery I use a Noco Genius 10 battery charger and charge it routinely since it is not driven daily.

 

[Wbino]

I still have my original 12v battery on my 2021 E torque but will replace it before the winter.
I just started getting a start/stop not ready until I drive it awhile then it goes away.
At my last oil change two months ago the dealer said the battery was still at 70% but I'm going to replace it before I NEED to replace it.

 

[VKSheridan]

I have a 2023 JL with the v6 eTorque motor. Started having a battery drain overnight. Has anyone had problems with the battery.
It is only two years old. any insight would help. Did a test and the drain is only .07 amps.

With a low drain rate like that, I’d load test your battery as I think it’s discharging internally if it’s dead by morning.

 

[DavidES1]

I would also park in my dark garage and watch the jeep power down after turning off and watch and see if all my interior and exterior lights and radio power down.

 

[hamiamham69]

What if the OP were to disconnect the battery overnight. Would that isolate the self-discharge if there is self-discharging going on?

 

[entropy]

Weak battery. If it is OEM battery I am not surprised. It is probably near EOL.

 

[VKSheridan]

What if the OP were to disconnect the battery overnight. Would that isolate the self-discharge if there is self-discharging going on?

It depends if the tiny external flow induces greater internal loss or not. In the day, some folks argued that premise as one of the reasons not to store batteries directly on the ground but rather on a board.

Me personally, I think it’d take less effort and speculation if OP swung by an Autozone and had them do a quick load test. A standard car battery has a reserve between 48 and 75 amp hours so a .07 draw shouldn’t bring it to its knees in 24 hours.

 

[Bubba337]

I have a 2023 JL with the v6 eTorque motor. Started having a battery drain overnight. Has anyone had problems with the battery.
It is only two years old. any insight would help. Did a test and the drain is only .07 amps.

I used to work at a Ford dealership. Customer had same problem & techs couldn't figure out out. Ford sent in big wheels. They couldn't figure it out, either. He was getting irate with the store & Ford. I sat with him & had a conversation. Asked him a bunch of questions. Figured out his key fob was bad & was constantly sending signals to the truck drawing low power. He drove the truck Monday thru Friday for work & it was fine. But every Monday morning, it was dead. Check your key fobs. Try leaving your Jeep somewhere else overnight away from the keys. That should tell you if that's the problem.

 

[DirtWrangler]

Me personally, I think it’d take less effort and speculation if OP swung by an Autozone and had them do a quick load test. A standard car battery has a reserve between 48 and 75 amp hours so a .07 draw shouldn’t bring it to its knees in 24 hours.

This is right on. 0.07 amps will drain less than 1 amp hour, out of 50 or more, in 12 hours. Parasitic drain is likely not the problem.

 

[entropy]

Ive had three JLs. First JL oem battery died within first year. Second JL 2 years. Replaced with a diehard battery that was still strong after 4 years before I sold it.

My 2025 has 3 months and the MAIN battery is already showing signs of it being weak. I will replace it once battery warranty expires.

My 2020 toyota Camry is still on its original battery and the battery is still strong.

The OEM batteries on wranglers are trash.

 

[2nd 392]

I would also park in my dark garage and watch the jeep power down after turning off and watch and see if all my interior and exterior lights and radio power down.

Yep- after sluggish starts I started investigating. A Tazer glitch is the problem. If I open the door just to access something without driving it the screens and gear indicator lights continuously cycle off and on, unless I put it in Run then back to off. It was suggested wrapping the fob in aluminum foil before the sleep cycles might prevent the glitch, but I haven’t tried it yet.

 

[mister flanders]

I have a 2023 JL with the v6 eTorque motor. Started having a battery drain overnight. Has anyone had problems with the battery.
It is only two years old. any insight would help. Did a test and the drain is only .07 amps.

Silly questions:

1. How did you determine that the battery is draining overnight?

2. Do you have a way of determining the state of charge before you leave it overnight? Is so, please describe it.

3. How did you determine that "the drain is only .07 amps"?

You could diagnose this problem easily with a real charger, one with configurable voltages and currents, and that reports charge delivered. Such a thing doesn't cost all that much more than the heavily marketed junk that is popular on these forums and is an invaluable tool.

 

[Mguy]

There's no information from the OP regarding battery state of charge before shut down, let alone info on battery state of health. Perhaps @suitter will enlighten so any discussion pertaining to an "overnight drain" can be focused.

An edit, rather than reply to my own post,

There's not even info on what problems, if any, OP is experiencing. Like, starting in the morning . . . .

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