Amazon.com: 2/0 Gauge 2/0 AWG 20 Feet Red + 20 Feet Black Welding Battery Pure Copper Flexible Cable + 10pcs of 3/8" Tinned Copper Cable Lug Terminal Connectors + 3 Feet Black
Southwire SIMpull 1000-ft 2/0-AWG Stranded Black Copper THHN Wire (By-the-roll) in the TFFN & THHN Wire department at Lowes.com
Southwire 500 ft. 2/0-2/0-2/0-1 Gray Stranded CU SER Cable 27083501 - The Home Depot
WNI 2/0 Gauge 25 Feet Black 25 Feet Red 2/0 AWG Ultra Flexible Welding Battery Copper Cable Wire - Made In The USA - Car, Inverter, RV, Solar - Amazon.com