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Old 15 June 2009, 07:19   #1
JSP
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Battery cables

Another electrical subject that goes over my head. What amp cables would I need and where is best to buy? Want to replace the + and - as they are looking a bit bleak.
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Old 15 June 2009, 08:44   #2
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do you mean the main battery cables? If so i used i think 25 square mm cable from a welding supplier, (centre core about 8mm dia) its nice and flexible and cheap, also available in other cross sections too. if you can get the stuff thats tinned copper its a bit more seawater sesistant.
As long as the physical size of the cable isnt a problem then the larger the better in terms of voltage lost. (thinks back, My PTT was slow until i went to 25mm cable)
The other alternative is SOME jump leads use good thick cable which would be suitable, beware of cheap ones which are all insulation!
In reality a 115 yam won't take much cranking current, so you wont melt even thinnish cable but the voltage drop is more relavant because the cables will be a total length of 12 feet! Take a look at 15mm and 25mm cable and use the thickest one that will fit through the powerhead grommets.
crimp the ends on and solder if you have the facility to do so, then wrap in self amalganating tape to keep the sea out.
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Old 15 June 2009, 09:11   #3
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Quote:
Originally Posted by doggypaddle View Post
do you mean the main battery cables? If so i used i think 25 square mm cable from a welding supplier, (centre core about 8mm dia) its nice and flexible and cheap, also available in other cross sections too. if you can get the stuff thats tinned copper its a bit more seawater sesistant.
As long as the physical size of the cable isnt a problem then the larger the better in terms of voltage lost. (thinks back, My PTT was slow until i went to 25mm cable)
The other alternative is SOME jump leads use good thick cable which would be suitable, beware of cheap ones which are all insulation!
In reality a 115 yam won't take much cranking current, so you wont melt even thinnish cable but the voltage drop is more relavant because the cables will be a total length of 12 feet! Take a look at 15mm and 25mm cable and use the thickest one that will fit through the powerhead grommets.
crimp the ends on and solder if you have the facility to do so, then wrap in self amalganating tape to keep the sea out.
Your a good man Thanks!
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Old 15 June 2009, 14:21   #4
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I've used this company for both motorcycle and boat wiring stuff.
Maybe not the cheapest, but good stuff and fast delivery;

http://www.vehicle-wiring-products.e...e/homepage.php

Douglas
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Old 15 June 2009, 16:05   #5
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i will second that, VWP are really good and reasonably competitive.
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Old 15 June 2009, 16:25   #6
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Get yourself some glue lined heatshrink tube big enough to go over the crimp and shrink a good length over the ends so that you seal the end of the cable on to the crimp, make sure you cover the spy hole in the crimp too, this will keep the water at bay and hopefully keep the sweeter froa lot longer.
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Old 16 June 2009, 08:41   #7
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try this guy http://cgi.ebay.co.uk/ws/eBayISAPI.d...m=360155095315

he has all different sizes and will cut if you look through his shop

I have the 300amp on the verado

Ian
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Old 16 June 2009, 09:20   #8
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to correct my post i used 35mm cable not 25mm.
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