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Battery Lug Crimping

EFI Wiring Fundamentals

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Discussion and questions related to the course Motorsport Wiring Fundamentals

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Hi guys, does anyone have any advice on a crimp tool for doing battery cables?

Stuck between a manual hex type (these seem to commonly leave "ears" on the crimp as they come in at an angle), hydraulic hex type (either really expensive or troublesome it seems), or a punch type (not sure if these make as good a crimp as a hex type?). Have ruled out the hammer operated punch type as they seem pretty inconsistent.

Advice appreciated. I won't use it often so ideally not something super expensive.

Thanks,

Jake

I see you didn't get a reply. So you probably got it sorted.

I bought a hydraulic hex crimps after my stamp type prove no use for larger crimps.

Risked getting a cheap one and so far it has been great, perfect neat crimps on all ring terminals as well as Radlock connectors.

https://www.ebay.co.uk/itm/204523815186?mkevt=1&mkpid=0&emsid=e11400.m144671.l197929&mkcid=7&ch=osgood&euid=a6f78a6765204b5c942f042763e9beba&bu=43599074429&exe=0&ext=0&osub=-1%7E1&crd=20251212183922&segname=11400

Appreciate the response Ian. I ended up with a hammer type tool that I put in a hydraulic press instead of hammering, worked quite well for what I needed. Also got a DMC HX4 but dies are proving hard to find!

Hello Jake,

As you mentioned dies for the HX4, I recently found out that Racespec in the USA offers 2x dies for ring terminals. The bigger the HX4 will do is 6AWG though. Here's the link if it can helps :

https://racespeconline.com/products/race-spec-exclusive-dmc-hx4-die-set-for-closed-barrel-ring-terminals?_pos=2&_sid=46ff154bd&_ss=r&variant=46286678098137

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