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Group 31 Batteries
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Tbone95 View Drop Down
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Joined: 31 Aug 2012
Location: Michigan
Points: 12337 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Tbone95 Quote  Post ReplyReply Direct Link To This Post Topic: Group 31 Batteries
    Posted: 25 Dec 2025 at 1:51pm
K, dumb question I guess. If a stud (post) can wiggle, albeit slightly, is that a problem?
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Les Kerf View Drop Down
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Joined: 08 May 2020
Location: Idaho
Points: 1494 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Les Kerf Quote  Post ReplyReply Direct Link To This Post Posted: 25 Dec 2025 at 1:57pm
It sure can be a problem, but it also might work fine for a long time. It is certainly not desirable, and I wouldn't want it on any machine/vehicle that I considered to be critical.
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Tbone95 View Drop Down
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Joined: 31 Aug 2012
Location: Michigan
Points: 12337 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Tbone95 Quote  Post ReplyReply Direct Link To This Post Posted: 25 Dec 2025 at 2:23pm
That’s kinda what I was thinking. It sure didn’t come new that way. I think I’ll take it back where I bought it and see what they say. Friggin’ paid enough for it that’s for sure.
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SteveM C/IL View Drop Down
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Joined: 12 Sep 2009
Location: Shelbyville IL
Points: 8766 		Post Options Post Options   Thanks (0) Thanks(0)   Quote SteveM C/IL Quote  Post ReplyReply Direct Link To This Post Posted: 25 Dec 2025 at 8:30pm
Sounds faulty from the get go. They don't come loose with normal use and should take some abuse as well before that happens. Worst case is poor connection internally and hydrogen BOOM!
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Joined: 05 Jun 2021
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Points: 94 		Post Options Post Options   Thanks (0) Thanks(0)   Quote 1963D17 Quote  Post ReplyReply Direct Link To This Post Posted: 8 hours 56 minutes ago at 4:00pm
That post attaches to the grid plates. Quality group 31's use a 1/2" rod to the grid. Cheaper one's a 3/8". When they wiggle the rod is usually corroded and getting thin allowing the stud to move. This is made worse by the farmers best friend. Using his pliers to wiggle off the cable instead of prying it straight up.
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Joined: 12 Sep 2009
Location: Shelbyville IL
Points: 8766 		Post Options Post Options   Thanks (0) Thanks(0)   Quote SteveM C/IL Quote  Post ReplyReply Direct Link To This Post Posted: 3 hours 45 minutes ago at 9:11pm
Originally posted by 1963D17 1963D17 wrote:

That post attaches to the grid plates. Quality group 31's use a 1/2" rod to the grid. Cheaper one's a 3/8". When they wiggle the rod is usually corroded and getting thin allowing the stud to move. This is made worse by the farmers best friend. Using his pliers to wiggle off the cable instead of prying it straight up.
A stud post should not require any prying. Remove nut and lift coble off.
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Joined: 05 Jun 2021
Location: Alvord, Iowa
Points: 94 		Post Options Post Options   Thanks (0) Thanks(0)   Quote 1963D17 Quote  Post ReplyReply Direct Link To This Post Posted: 1 hour 34 minutes ago at 11:22pm
Missed the stud type. Both my 7120 Magnum and 1660 combine have that style.
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