Most common automotive battery terminal sizes

[hunterguy86]

Looking for some input on common battery terminal sizes. I disconnect a decent amount of batteries at work and have mostly been using an adjustable wrench. Looking to put some common size sockets and maybe ratcheting wrenches in a bag to carry with me instead of going back to the rig to the tool box.





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[grumpychevy]

5/16" side terminal. Many manufacturers make a ratcheting wrench just for this.

 

[mcmtech]

Lang tools makes a ratcheting battery wrench that's 10mm and 8mm. Covers nearly anything made these days.

 

[454ragtop]

Yup, 10MM, 8MM (5/16"), and on older more traditional top post terminals either 1/2" or 9/16" (less common).

 

[Fedwrench]

My favorite ratcheting wrench for loosening battery terminals, is a 8 x 10 mm ratcheting boxed end wrench made by EZ Red. Unfortunately, it seems they longer make the set that it's a part of

 

[APS2000]

Harbor Freight has some.

https://m.harborfreight.com/catalog...atured+Weight,f,Sale+Rank,f&q=battery+ratchet

 

[mrborohachi]

8 mm x 10 mm and 12 mm x 13 mm in one wrench. Your one and done for Japanese cars

http://www.autozone.com/wrenches-pl...2-pcs-metric-ratcheting-wrench-set/951644_0_0

 

[kblee27]

I sell and install car batteries.
For terminals:
10mm is the most common.
Sometimes, you'll encounter 8, 11, 12, 13mm

If you want a all-in-one,
https://www.amazon.co.jp/gp/product/B001D39694/

 

[Wamsutta]

I use a 5/16'' Snap-on combination wrench. OEX10B to be exact.

 

[thatguysb]

I encounter quite a bit of 11mm and 13mm, 11mm for the post and 13mm for the thru bolt on the terminal. These are on replacement terminals, Original Nissan stuff is 10mm for the terminal and the brackets.

 

[454ragtop]

I encounter quite a bit of 11mm and 13mm, 11mm for the post and 13mm for the thru bolt on the terminal. These are on replacement terminals, Original Nissan stuff is 10mm for the terminal and the brackets.

You're actually seeing 7/16" and 1/2", that's what's on those replacement terminals.

 

[hunterguy86]

Cool. Thanks for all the info.


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[skruft]

The top terminals do not take much turning to loosen or tighten. Usually I will have ready just the correct open end wrench, and a terminal puller to use if they are tight.