Battery Cable Gauge Diameter Chart. 18 gauge wire awg 7 3 ft. Battery cable is used to power your electrical system and is sized according to the american wire gauge or awg for short specification for electrically conductive cables. Automotive wire amperage capacity chart recommended length and amperage for automotive wire while maintaining a 2 or less voltage drop at 12 volts automotive wire size 5 amps 10 amps 15 amps 20 amps 25 amps 30 amps 20 gauge wire awg 4 5 ft 2 2 ft 1 6 ft.
The reason this sizing is used is because wire sized using the sae wire gauge have larger and fewer strands than those sized using the standard american wire gauge. Wire gauge calculations wire diameter calculations.
Welding cable tends to be large gauge wire so i think the guys that claim welding cable is the very best stuff to use do so because they are comparing very large 2 0 welding cable to a small 2 gauge battery cable.
Part number catalog number awg size stranding minimum wall thickness nominal o d. Voltage system allowing a 20 voltage drop. Sae wire gauge size and amperage for a d c. The reason this sizing is used is because wire sized using the sae wire gauge have larger and fewer strands than those sized using the standard american wire gauge.
