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Hardwire battery tender, which bolt/screw?

WranglerMan

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First Name
Will
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May 8, 2018
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Location
Greenfield Indiana
Vehicle(s)
2018 Wrangler JLU Sahara
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Retired
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When my voltage was mid 14s for months, my dealer said it was not a problem unless it went up to 14.8, then they would look at it. I even disconnected the IBS to reset it and nothing changed (now that I think about it, I'm sure if that's how it gets reset). It did eventually start getting to 14.8 frequently, but the real world distracted me for a while and I quit monitoring the voltage. Then when some of these battery related posts recently popped up, I started checking again and now it's working as designed, around 13.1 and voltage goes up when decelerating.

I don't think there is a periodic ramp up to keep the battery charged, but think the battery state reporting by the IBS is responsible for the high 14+ voltage when it happens. That's why I advocate for not bypassing the IBS by connecting anything to #7 as that could confuse the IBS analysis of the battery.

I just remembered that during a really cold spell over the winter, my tire pressure got low enough to trigger the low pressure warning. After I aired them up to an acceptable level, my voltage level read correctly for about 3 days before it reverted back to the mid 14s. I'm not sure I can explain that one.
Well I pulled it off my tender this a.m and headed towards the airport it was reading 12.7-12.8 and ramped up on deceleration and that’s what it’s supposed to do, I’m not gonna obsess over seeing the 14.1 but when I stopped looking at it several months back it was running in the 13-13.5 range, the main battery was replaced about 5-6 months ago so maybe it being stuck on the 14.1 was just a fluke.

When I pulled the battery cables to reset stuff all was right and clean and both batteries were in the 12.55-12.65 range so they were pretty charged and currently I have my tender connect negative on #5 and winch negative on #6 and nothing on #7
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