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The mkiv Supra Owners Club

Battery Relocation questions


Big Mark

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Going to relocate my battery to the boot and have a couple of questions.

 

Will this (link) cable be suitable?

 

Can I run the cable directly from the battery in the boot, via a breaker near the battery, to the starter motor and then use another short length from starter motor to fuse box? Thereby eliminating the need for a distribution/junction box under the bonnet?

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There's some junk cable about, and as it doesn't say pure copper conductors it probably *IS* junk. many use copper plated alloy or steel conductors. But if it *IS* pure copper it should work, as will the way you suggest wiring it. Get someone with a *PROPER* cable crimping tool to crimp *PROPER* high Amp capable crimps on it for you. I wouldn't bother with a breaker, the less switches and terminations in the main battery lead the better.

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I had a night mare with battery issues after relocating.

 

You must not use anything less than 415 amp.

 

I used this stuff

 

http://www.ebay.co.uk/itm/111236722625?_trksid=p2060353.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT

 

And if need them you need 70mm2

 

http://www.ebay.co.uk/itm/261880862916?_trksid=p2060353.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT

Edited by a98pmalcolm (see edit history)
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I think I saw something about the problems you were having, hence my post.

 

Following your advice I've upped the diameter to 60mm2 and am awaiting for the seller of this (link) to confirm that it is 100% copper and not copper coated.

 

Also, how did you connect things up under the bonnet. I know some that used a distribution box but I'm thinking of just running the cable from the battery straight to the fusebox and then a cable from there to the alternator, or vica versa. No distribution box needed.

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Get someone with a *PROPER* cable crimping tool to crimp *PROPER* high Amp capable crimps on it for you. I wouldn't bother with a breaker, the less switches and terminations in the main battery lead the better.

 

Crimper sorted, as mate has one he uses on his racing cars wiring. Regarding no breaker or fuse, is that safe? I thought you're always supposed to put a fuse or breaker within a foot of the battery for any cable runs.

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I think I saw something about the problems you were having, hence my post.

 

Following your advice I've upped the diameter to 60mm2 and am awaiting for the seller of this (link) to confirm that it is 100% copper and not copper coated.

 

Also, how did you connect things up under the bonnet. I know some that used a distribution box but I'm thinking of just running the cable from the battery straight to the fusebox and then a cable from there to the alternator, or vica versa. No distribution box needed.

 

I used a distribution box then I could have other thing going into it like my headed wind screen, rad fans ect

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How is the heated windscreen? I had one on a ford years ago and it was great. Do you have a separate switch or does it just share the rear screen switch?

 

Its was 1 of 10 from Whifbitz, I used a front spoiler switch and converted it to turn the heated wind screen on and off using windscreen icons ect..

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