1/0 Awg Cable

Shop 1/0 AWG power and ground cable, the heaviest gauge commonly used in car audio and charging-system installs. 1/0 is the standard choice for the main run between a high output alternator and the battery, and for feeding large amplifiers or a rear battery bank.

Use 1/0 where current is high or the run is long. Doubling up smaller cable is not equivalent to a single correctly sized run, and undersized main cable will cap what your alternator can actually deliver.

Browse Big 3 kits for a complete alternator and ground upgrade, or all cable and wire.