What size cable do you need

What size cable do I recommend?

#4 makes great accessory leads and alternator wiring. Many new cars and small imports use this as battery cable.

Use #2 for battery cable for small 4 cylinder auto battery cable and hi-power accessories (winches, power converters, 200 amp alternators, golf cart or electric vehicle battery chargers and tow truck jumper cable kits).

1/0 makes great battery cable for 6 cylinder and small V8s.

Use 2/0 for hard to crank engines (like high compression, big blocks, semi trucks or diesel engines) and alternative energy battery banks.

3/0 and 4/0 are for very large marine or heavy equipment engines and alternative energy battery banks (although if you want 4/0 battery cables, for your truck I'll build 'em... that's why it's CUSTOM battery cables. ;-)

For very long cables (for example: 20 foot long battery cables to relocate your battery) go one size larger.

Please note that you can probably get by using a size or maybe even 2 sizes smaller than what I am recommending. Hey, the factory does. They make the cables as small as possible but still get the job done. Copper is expensive... the manufacturer saves a few bucks on millions of cars... pretty soon it adds up to real money. I recommend using cable larger than the factory cable because I believe that they will work better for you than the original and if you're visiting this site that's probably what you want... Something that will work better and last longer.

Just how big is that 2/0 cable? Check out the wire gauge chart.