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Hi

I've moved my Battery from one side of the caravan to the other and have had to extend the leads to just over 2m. In doing this I stuck to the same 2.5mm gauge wire that was there before.

The question is should I have gone for 4mm gauge as I remember something about the longer the length the larger the diameter wire you need with 12 volt.

Can anyone tell me if 2m is too long for the size I'm using. The van is an 88 abi jubilee and so there is not a huge 12v draw

Thank you

It would have been better to upgrade, however it all depends on what current you intend to draw.  If its for lights, they may a bit dimmer.  If you run a tv it might upset it.

Try it and if you are happy with the equipment you are using is satisfactory then no need to change.

cheers. If I use the tv (once or twice a year) I tend to use an extension lead from the car. so I probably won't notice any difference.

As long as its safe for charging then I'll stick with it.

Thanks again

may help

hi ,just read through the handbook with the mover,covers all but cable size. had to get out my auto electrician books,DUSTY

CABLE SIZE 14/0.3 = GENERAL/PARK AND TAIL/INDICATORS/RADIOS/RATE 8.75 AMPS.

CABLE SIZE 28.03 = HEADLAMPS/HORNS/HEATED WINDOWS/RATE 17.5 AMPS

CABLE SIZES 65.03 RATE 35 AMPS..84.03 RATE 42 AMPS..97.03 RATE 50 AMPS..120.03 RATE 60 AMPS..ALTERNATORS DEPENDS ON OUTPUT.

CABLE SIZE 37.09 RATE 170 AMPS STARTER CABLE.

CABLE SIZE 44/0.3 RATE 25.5 AMPS

ALL METRIC SIZES ...SAMPLE ..14/0.01 INCH HAS 14 STRANDS EACH OF WHITCH HAS A DIAMETER OF 0.01 INCH SO 16/0.2 METRIC INDICATES 16 STRANDS EACH OF A DIAMETER 0.2 THE RATES MAY BE REDUCED BY 60% IF RUN IN A LOOM..

hope this helps,the switch at the start of the post is rated at 100 amps.