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cable thickness for 2nd battery run

For all things Electrical.

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cable thickness for 2nd battery run

Post by Slayer »

fitted the dual battery, back under the tray, now need to run cable up to the main in the engine bay, all it its prob 5 mtrs.. will prob get it made up and the ends soldered on at battery factory or sumthin, but what thickness should i use?? and how much is to much to pay per mtr?
cheers
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V8Patrol
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Post by V8Patrol »

With that distance in mind I recon the heavier the better, Try a "welding supplies" store, the leads for an arc welder are heavier duty than battery leads and more flexable too.

The local automotive charges a testicle per metre !! thats why I went with the welder leads.
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Post by chimpboy »

How about hacking up a nice jumper lead?
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Post by Slayer »

both those thoughts had come to mind, although not sure if jumper leads can be found long enough, and joining it would only result in current loss... as for the welding leads i will look into it further... cheers...
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Post by Bluey »

what type of lugs/whatever do you use on welding leads? can you buy welding cable by the mtr, or....
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Post by Slayer »

got a quote today of 11 bucks per metre plus 2 bucks for the lugs on the end for stuff called i think 3bns? 35mm2.. this will be the duckz nutz for my aplication aparently.. and cause im buyin a fair amount the generous sob's will solder the lugs on free.. how nice..hahaha.. anyways goin out 2morrow to get battery and cable.. should be dual batteryin by 2morrow arvo :)
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Post by V8Patrol »

Bluey wrote:what type of lugs/whatever do you use on welding leads? can you buy welding cable by the mtr, or....


same ones that go on battery leads and yep per metre !!! :D
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Post by modman »

stranded flexible cable can be bought very cheaply at the scrap metal merchant.
i bought about 15m of 50mm2 double insulated flex cable for $20 to make heavy duty jumper leads for a mate in the earthmoving industry.
also soldering is good, but if you know any electricians then get them to crimp the lugs on using 10 tonne hydraulic or hand crimper.
beware of hacking up jumper leads, 90% on the market are cheap shite!
i am in melbourne and if anyone needs help doing batt. cables or jumper leads pm me.

david ;)
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