Thread: noob electrical question

i run 13sqmm cable and get under .1v drop at the trailer.

i would think 2 @ 2.5 would not be sufficient myself. run a length out the distance you need and see what sort of voltage drop you get and then look at the current you can push thru it and i am pretty sure it would come up wanting... be better than nothing tho it has to be said...

what sort of camper you got pedro, i must have missed that one?

To much resistance with that size cable, i would go bigger.

I run 6sqmm cable and havn't had a problem.
Haven't measured the voltage drop though.

Too small, 6mm minimum I would think.

Originally Posted by Pedro_The_Swift

I have some 2.5mm three core cable in the shed,,
I need to run a dedicated power supply to charge the camper battery,,
can I join the active and neutral at the lugs?
do I increase my current capacity by doing so?

Is this 240 AC we're talking about?
Is it 3 core flex (as in extension lead cable)?
Or 3 core flat cable which is fixed in position?

G’day Pedro, I take it you are talking about running cable to carry 12v from a battery charger to the CT battery.

How long is the run and how big is both the battery and the charger.

Cheers.

er--

its from the D2 battery/alternator to CT battery,,

so around 5 metres??

the battery is a "AAA brand ED5 75AH"

its a fair lump of battery,,
actually have two,, the trailer came with a spare

the cable is orange and round,, copper is thick strand not fine.

Originally Posted by Pedro_The_Swift

er--

its from the D2 battery/alternator to CT battery,,

so around 5 metres??

the battery is a "AAA brand ED5 75AH"

its a fair lump of battery,,
actually have two,, the trailer came with a spare

the cable is orange and round,, copper is thick strand not fine.

Two core and earth orange circular, sorry no good for what you are after.
Look at something like 13mm and up. 12vdc is not my forte'