Suffolklou
Well-Known Member
- First Name
- Lou
- Joined
- Dec 3, 2019
- Threads
- 5
- Messages
- 686
- Reaction score
- 1,053
- Location
- Richland Wa
- Vehicle(s)
- 2020 JLUR
Thanks for the update
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I have just replaced my aux and main battery with odyssey batteries. My old battery would always read 14.5 when driving or coasting to a stop…after installing the new batteries i now see 13.5 when driving and then it goes up to 14.4 when coasting..seems like its a main battery dying? Please anyone correct me if im wrongThis has been discussed a lot. At a minimum, please read this thread: https://www.jlwranglerforums.com/forum/threads/3-6l-ess-dual-battery-consolidated-information.25377/
Some vehemently argue that 14+ reading means you have a failing battery or batteries. Others, like me, say it’s normal. Mine has read 14+ since day one of ownership. I’m at nearly 36,000 miles and 2.5 years of ownership. I put my batteries on a tender several times a month. I have never had an ESS error or a dead battery.
By the way, my 2016 GMC Yukon XL with a one week old battery also reads 14+ volts regardless of how long a road trip we take; it always has.
Grab a $50 Deltran battery tender and keep your batteries well maintained. No harm in having your batteries tested in isolation, if you’re worried.
Eek. Don’t follow what I wrote there way back when… I was dead wrong. (And your observation is correct.)I have just replaced my aux and main battery with odyssey batteries. My old battery would always read 14.5 when driving or coasting to a stop…after installing the new batteries i now see 13.5 when driving and then it goes up to 14.4 when coasting..seems like its a main battery dying? Please anyone correct me if im wrong