Auxiliary battery disconnect question

[Stl-Rubicon]

I disconnected what I believe is the negative battery cable that runs from the main battery to the aux battery on my 2022 non-hybrid 2.0L. The end of the negative cable that attached to the main battery had what I would call a "post" on the end of it (a nut goes on the post to secure it to the battery). I taped it up with electrical tape to isolate it but I'm concerned it will eventually rub though. I haven't seen anyone else mention this post so I just wanted to make sure it is the correct cable. If needed I can take a picture but as mentioned I've already wrapped it up pretty good with electrical tape. I'm thinking long-term I'm just going to remove the cable but needed a temporary fix until I have time.
Thank you

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[AndySpill]

Wrapping the loose end in an old tee shirt, or parts of it, or a rag, and securing the whole thing with electric tape or cord etc. should long term resist the loose end's conductive materials from seeing the light of day.

 

[Dgr401]

I have not done the disconnect yet but I plan to when the time comes. From what I have read the proper cable to disconnect is the narrower of the two. I also remember reading that the physical position of the cable changed a few years ago, on my JL (2020) the narrower cable is the one closest to the fender flare, on my nephew’s the narrower cable is the one closest to the engine block. After covering the cable with tape I plan to zip tie the cable to a stable place and then tape over it again.

 

[Stl-Rubicon]

I have not done the disconnect yet but I plan to when the time comes. From what I have read the proper cable to disconnect is the narrower of the two. I also remember reading that the physical position of the cable changed a few years ago, on my JL (2020) the narrower cable is the one closest to the fender flare, on my nephew’s the narrower cable is the one closest to the engine block. After covering the cable with tape I plan to zip tie the cable to a stable place and then tape over it again.

Thank you. I did pick the narrow cable and am 99% sure it's the correct one. I just haven't seen anyone mention the post. It makes it harder to insulate. My original plan was to just tape it off and leave it (same as you) but the post sticks up at least an inch which is making it harder to find a good place to leave it. If I do leave it I would want to use something besides the tape (maybe a rag as was suggested).

 

[AndySpill]

I have not done the disconnect yet but I plan to when the time comes. From what I have read the proper cable to disconnect is the narrower of the two. I also remember reading that the physical position of the cable changed a few years ago, on my JL (2020) the narrower cable is the one closest to the fender flare, on my nephew’s the narrower cable is the one closest to the engine block. After covering the cable with tape I plan to zip tie the cable to a stable place and then tape over it again.

Hi Dennis:

Your probably correct, especially for certain, maybe all model years. But poster Jebiruph has documented here situations where Stellantis has made minor modifications to the wiring of the negative post of the main battery that as a result make me a believer in the following visual advise, as its more "bullet proof" in its approach:

"Two factory cables connect to the negative terminal of the main battery on dual AGM battery JLs. One of those cables has as its other end the body ground connection on the passenger's side panel, just under the hood. Leave that cable connected. It is the other factory cable connected to the main battery's negative post which has as its distal end the negative post of the Aux battery, and it is that cable that should be disconnected at the main battery's negative terminal and insulated at its loose end, in addition to preventing the vehicle from isolating the Aux battery (either by Fuse 42 pull or, the original approach, fused jumpering of points N1 and N2 in the Power Distribtion Center), along with turning the ESS system off with a button push each cold crank, or an aftermarket device to effect same, if you want to run with one battery."

If you also want to disconnect that cable (eventually) at the Aux battery: I'd classify that as an additional personal step that has no additional electrical effect beyond the intial disconnection of the cable at the main battery's negative terminal.

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