1Extra Durability: The tin plated copper connector increases heat dissipation, wear resistance, and rust resistance, enhancing the copper's oxidation resistance. 2Heavy Duty 4 Gauge Wire: The tin plated copper wire offers excellent conductivity, heat dissipation, and stability. Pure fine stranded pure copper wire brings you stable performance. 3Extend Battery Lifespan: Replacing your golf cart's battery wire can help save energy, prevent leakage, and prolong battery life and range, allowing you to drive for longer periods of time. 4PVC Insulation Jacket: The flexible PVC insulation layer of the battery wire is wear resistant, water resistant flame retardant, and heat insulating, with a temperature range of 40C to +105C. 5Reliable Connection: Ideal for golf carts with DC AC36V48V. The red wire connects to the positive terminal and the black wire connects to the negative terminal. 7 x Cables