How do I choose the right extension cord for my RV?

First, match the amp rating—30A or 50A—to your RV’s system. Then pick the length based on voltage drop: for a 30A RV, use 25 ft (10 AWG) or up to 50 ft (8 AWG); for a 50A RV, max 50 ft at 6 AWG. Always buy a cord designed for RV use with heavy insulation and locking connectors—not a cheap hardware store extension cord. Spending $50–$150 now saves you from tripped breakers and fried electronics later.