Extend the reach of your battery charger and accessories. Add an additional 10 feet of length to any connection. Compatible with G750, G1100, G3500, G7200, and G4 models, as well as, GENIUS1, GENIUS2, GENIUS2X2, GENIUS2X4, GENIUS5, and GENIUS10. Additionally, the GC004 is compatible with the GC001, GC002, GC003, GC008, and GC009 X-Connect accessories. Not compatible with NOCO Boost UltraSafe Lithium Jump Starters.