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Old 03-24-2015, 12:26 PM   #1
csport
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Default Is there a suggested torque poundage for battery terminals?

After reading the problem with the beach cart below- I just do not remember ever reading about this before

thanks

I used to worry about tightening too tight and snapping things- Now I am old
and I wonder if I am getting them tight enough
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Old 03-24-2015, 12:44 PM   #2
kgsc
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Default Re: Is there a suggested torque poundage for battery terminals?

Last I saw from the gurus is like 110 inch/pounds.. So like 9 ft/pounds. Snug it and stop..
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Old 03-25-2015, 08:27 AM   #3
JohnnieB
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Default Re: Is there a suggested torque poundage for battery terminals?

Attached are the specs for Trojan Battery, but all would be about the same.

The most common type terminals used in golf carts are the Embedded Low Profile Terminal and Embedded High Profile Terminal (ELPT & EHPT), which is 95-105 lb/in, which translates to 7.9 - 8.8 ft/lb, so 9 ft/lb is about right.

When I had stud type battery terminals, I used a socket with a screwdriver handle drive or a short handled 1/4" drive ratchet so I didn't accidentally over-torque the nuts.
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Old 03-25-2015, 01:33 PM   #4
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Default Re: Is there a suggested torque poundage for battery terminals?

Quote:
Originally Posted by JohnnieB View Post

When I had stud type battery terminals, I used a socket with a screwdriver handle drive or a short handled 1/4" drive ratchet so I didn't accidentally over-torque the nuts.
Like JohnnyB I use a 1/4 drive socket and a screwdiver handle to tighten mine

edit to add I just checked mine with a 1/4 beam bar torque wrench, and they were between 60 and 65 inch lbs, have had no problems at torque
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Old 03-30-2015, 06:33 AM   #5
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Default Re: Is there a suggested torque poundage for battery terminals?

Trojan Website says the following.

Proper Torque Values for Connection Hardware

Flooded
Automotive 50 – 70 in-lbs
Side 70 – 90 in-lbs
Wingnut 95 – 105 in-lbs
LPT 95 – 105 in-lbs
Stud 120 – 180 in-lbs
LT 100 – 120 in-lbs

VRLA
Button 90 – 100 in-lbs
LT 100 – 120 in-lbs

My T-875s are LPT type lugs. I purchased a 1/4" drive Torque Wrench and set at 100 in-ibs. I must say that it was a little scary how tight that is.

Hope this helps.

M
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Old 03-30-2015, 07:51 AM   #6
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Default Re: Is there a suggested torque poundage for battery terminals?

Quote:
Originally Posted by InVision View Post
--------------My T-875s are LPT type lugs. I purchased a 1/4" drive Torque Wrench and set at 100 in-ibs. I must say that it was a little scary how tight that is.
-------------
Yes, 95 to 105 in/lb (7.9 - 8.8 ft/lb) is tighter then many people realize, but many people also overlook the fact a wrench is a torque multiplier.

The studs on Trojan GC battery are 5/16" diameter and if you use a wrench that is 6" long, 19.2 ft/lb of torque will be applied to the threads for each pound of force applied at the far end of the wrench.

Technically, you'd have to subtract something like half the width of the nut from the length of the lever arm, but the point is that applied torque adds up fast when you use long wrenches.
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