battery gauge wire

C

crimsonsnake0

10 W
Joined
Aug 2, 2010
Messages
68
hi could anyone with the knowledge recommend the correct gauge wire for controller and wiring batterys ? looking at 72v 1500 watt 45amp controller whats suitable please ? 10 gauge car audio wire? will that take the volts amps ?regards to all ebikers
 
Here are a couple of links for battery gauge thickness versus current carrying capacity...

http://www.powerstream.com/Wire_Size.htm

http://en.wikipedia.org/wiki/American_wire_gauge

Or as YPedal says, use 12 AWG unless you have a long run, then use 10 AWG. :D

Ambrose
 
Be VERY wary in your choice of wire... particularly car audio wire. That industry is full of frauds and mis-speced specs. My testing of car audio wiring showed many "100% pure oxygen free copper" wires (even from big names) was not. Some was plated aluminum at 1.6 times the resistance of copper. Others were mystery metal with over 3 times the resistance of copper.

Some 4 gauge wire was maybe 10 gauge, surrounded by lots of (cheap) insulation. You might think that you bought 4 gauge, but you got 8 or 10 gauge in disguise. In the heavy gauge (0 - 8 gauge) material, the Scosche EFX Flux cables and Excelene welder cables tested very well.
 
Ypedal said:
The best stuff i've use so far is the hobbyking.com silicone stuff ( supper soft, and crimps well.. )
Click to expand...

If you are curious about its actual quality/resistance/material/etc send me a foot or two and I'll test it on my HP3458A 8.5 digit meter with the Kelvin connections... I can resolve down to micro ohms.
 
Cool !!.. shoot me a PM with a shipping address !.. i'll send a piece of 12 gauge and 10 !. 8)

Along with some zip cord :
http://www.powerwerx.com/wire-cable/red-black-zip-cord.html

Stiffer, and not silicone coated, but i'm curious to know wich is better in terms of resistance !
 
Did that test ever get run? :)

If you really need large cable at a good price, welding cable can be had cheap at most welding supply shops. I got 20 ft of 2 gauge for $40 IIRC. They had everything from 8 AWG to 0 AWG.

Nathan
 
You must log in or register to reply here.

Similar threads

marce002
Red thin wire trick volt
Replies
5
Views
224
marce002
marce002
E
Wiring Experts - Extending Hub Motor Phase Wires
Replies
2
Views
320
neptronix
neptronix
Skyler
unconventional ebike motors.
2 3 4 5 6
Replies
143
Views
6,978
Skyler
Skyler
M
3s3p Ridgid 18v Battery Packs for an E-Pocket Bike…safe?
Replies
10
Views
552
Michael86
M
martinev
Brainpower 72v wiring
Replies
2
Views
660
martinev
martinev
Back
Top