what thickness cable is ok for battery relocation

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what thickness cable is ok for battery relocation
#1
Looking at either 20 or 25mm cable 25mm is rated upto 170 amps is this ok or over/underrated. My question then is what power does the car require for starting ect?
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#2
4 gauge is fine.
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#3
25mm is crazy thick!... do you mean the entire cable or just the cores?
Wishes for more power...
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#4
Protip, take the cable out of a BMW at a scrap yard.
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#5
(18-12-2012, 11:01 PM)Ollie Wrote: Protip, take the cable out of a BMW at a scrap yard.

this.
Dont use audio cable. Use proper battery cable. And dont forget, the longer the run, the more you have to bulk up the cable. I know my battery can chuck out up to about 600 CCA but bare in mind thats only for a very short period.
Team Eaton


1999 China Blue 306 GTi6 - Eaton Supercharged - 214.5bhp 181lbft
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#6
I know thid its 25mm2 core size battery cable. Bmw setups go for too muvh and I have no time to go find and remove one
TD04 11mm Sedan, now 2.1 vnt

Sedan Project http://306oc.co.uk/forum/thread-5763.html

Provence Dturbo Dead
Blaze 1.6 Dead
China 5dr '6 Death by cambelt failure
Matt White HDI estate Death by wiring
Sedan Dturbo aka triggers broom
Diablo estate Dturbo Living dead
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#7
IF you relocating the battery on a diesel id go for 35mm to reduce the cranking voltdrop as the ecu wont like it and throw wobblies
also use the same 35mm on the earth straps from the battery to the shell

diesels are real hard on batterys when cranking from cold

if its a petrol then 25mm minimum this is all core size not measured outside sheath diameter
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#8
As cully said,

Ive been cheap a couple times (free cable / amp cable) and altho yes it will kinda work / seem ok, it just constantly gave me issues /slow cranking if the battery was even slightly down, just way more hassle than it was worth, cant remember what size i went out and bought in the end, but bought solid copper thick as fook stuff and have had no problems since!!
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#9
iwent to the weldingshop and bought meters off welding cable. the guy said its rated to about 240 amps iirc... was only 24 quid too
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#10
Yeh welding cable is fine also.
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#11
I use And supply kits with135amp cable in never had an issue

Quality and how the terminals are fitted also makes a differance
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#12
Handy I have a mate who works in his dads welding shop. Swampy I will try measure how far from the bay the back of a sedan bootpan over xmas if I don't make 1 myself
TD04 11mm Sedan, now 2.1 vnt

Sedan Project http://306oc.co.uk/forum/thread-5763.html

Provence Dturbo Dead
Blaze 1.6 Dead
China 5dr '6 Death by cambelt failure
Matt White HDI estate Death by wiring
Sedan Dturbo aka triggers broom
Diablo estate Dturbo Living dead
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#13
I now have the dimensions of these for a 306 hatch
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#14
Bit of a bump on this thread, having a bit of an issue after relocating my battery in my dt to the boot. Im currently using 25mm cable like HDIkyle was using and under cranking im losing about 0.8 of a volt and not cranking over as fast as i would like it. What do people recommend? Would going for 35mm cable help my issue at all?
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#15
I use a bmw cable. No idea what thickness. Comes with the added advantage of being fused as well. Cost me a fiver.
On a break from 306oc for personal reasons. If anyone needs or wants me most of you have my number and or facebook messenger
Thanks for the good times guys n gals. I might be back. Who knows.
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#16
(21-02-2016, 12:56 PM)bashbarnard Wrote: I use a bmw cable. No idea what thickness. Comes with the added advantage of being fused as well. Cost me a fiver.

Where abouts you get it from?
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#17
a bmw Big Grin
need a part number? http://public.servicebox.peugeot.com/ and http://service.citroen.com/ will sort you out.
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#18
(21-02-2016, 01:59 PM)welshpug Wrote: a bmw Big Grin

Yeah. About as much as I can remember. Sorry dude.
On a break from 306oc for personal reasons. If anyone needs or wants me most of you have my number and or facebook messenger
Thanks for the good times guys n gals. I might be back. Who knows.
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#19
(21-02-2016, 01:59 PM)welshpug Wrote: a bmw Big Grin

Another helpful comment from you once again

I was asking more the question like where from as in a scrapyard or similar? They very easy to take out?
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#20
http://www.electronics-tutorials.ws/dcci...dcp_2.html
Overall Road Going Production Class Winner at BARC Gurston Down Speed Hillclimb 2012, 2013 & 2014 With a class record along the way (For a while), Taking 2nd place will be Ian Redding's 306 GTi
2016 Castle Combe GT championship class winner
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#21
yeah it was easy enough to take out, once id removed the drivers seat, the rear seat, a load of plastic bracing they out in the car for what i can only tell no reason, then spent ages getting it out the centre of a massive wiring harness.
On a break from 306oc for personal reasons. If anyone needs or wants me most of you have my number and or facebook messenger
Thanks for the good times guys n gals. I might be back. Who knows.
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