Negative battery cable size?

[lump_a_charcoal]

Hi All,

What is the size (CSA*) of the battery negative cable in a 2013 Puma?

I want to remove the existing clamp, and ensure that I get the correct lug.

*cross sectional area, in mm?.

Thanks!

[Dopey]

The Negative battery cable utilises a 50-10 cable lug on the chassis end.
Basically....(Yes, for the pedantics, I realise that there is more to it than that....Ie: difference between nominal and cross sectional area...) that means that the cable is roughly 50mm2, the -10 signifies that the lug has a 10mm hole for bolting through.

When doing a dual battery install, I upgraded the cable size to 70mm2.
Your factory cable has a (I guess you could call it a....) Y junction lug on it with one peice attaching to the transfer case and the other end attaching to the chassis.

I made two cables for my fitment, one Negative to transfer case & one transfer case to chassis.

Photo attached below...

Also,
http://www.sengpielaudio.com/calcula...ss-section.htm

Mike.

[Dopey]

Upgraded negative cable...
Transfer case end at top, chassis end at bottom of the photo.

Mike.

Edit.... Somehow my pic has turned on its side....

[Dopey]

Complete negative battery cable.

[Toxic_Avenger]

Good work 90@
I was going to caution a guess at 35mm2, but having a 50-10 lug on the end is a pretty clear indication.
PS, how spiteful is that factory lug! The factory copper is stiff as too... makes for a real PITA to get the cable run sitting right.
With my dual battery install I had considered re-making the factory negative cable but have got it to a workable place at the moment, but still not 100% happy, so will re-do mine at some stage.
Got any more pics of the cable you made up in 70mm2 ?

[Dopey]

Just making up some heavier winch cables now with the same cable that I used for the dual battery system.

Mike.

[Dopey]

70mm2 fire rated cable,
I would have preferred to use the individually tinned stuff, but the stuff that I ordered hasn't been delivered yet, I need to go bush for a week or two for work and need a winch working and the old winch cables would get too hot....
So making them out of what I have....

When I get back from work, (and the other cable gets delivered) I'll redo the battery system and winch with the tinned 70mm2 cable.

Mike.

[lump_a_charcoal]

Thanks gents!

[landoman]

The Negative battery cable utilises a 50-10 cable lug on the chassis end.
Basically....(Yes, for the pedantics, I realise that there is more to it than that....Ie: difference between nominal and cross sectional area...) that means that the cable is roughly 50mm2, the -10 signifies that the lug has a 10mm hole for bolting through.

When doing a dual battery install, I upgraded the cable size to 70mm2.
Your factory cable has a (I guess you could call it a....) Y junction lug on it with one peice attaching to the transfer case and the other end attaching to the chassis.

I made two cables for my fitment, one Negative to transfer case & one transfer case to chassis.

Photo attached below...




Also,
Cross-sectional area to diameter conversion circle intersection cross section diameter electric cable conductor formula wire diameter and wiring and calculation cross section AGW American Wire Gauge thick area of a solid wire formula conductivity res

Mike.

I want to replace my battery negative cable as that silly cone type screw attaching it to the battery is impossible to get tight and I've had a few cases of not being able to start due to poor connection

I note that the negative battery cable has two attachments ? one to the chassis and one to the transfer case?.. why is this so ?? I note most generic battery cables I can get don't have that intermediate connection ?.. they just have the battery lug and the end connection

if I fitted one of these generic cables to the negative terminal and to the transfer case and left out the intermediate connection to the chassis what would I be missing and what would the result be .

thanks for any insights

[shack]

One is a chassis earth, the other is for the motor, you need both, I've had the one on the transfer case fail and it causes issues.