Your RV power cord can and will go bad, it’s just a matter of time, weather, and wear and tear. While most RV power cords are very durable, any number of things can happen that cause them to go bad. Faulty connections, improper wiring, mistreatment, or leaving them out in the weather unplugged could all contribute to accelerated wear and tear. Even keeping it in storage without using it very often can cause it to go bad more quickly. As a general rule, your RV power cord will last around 5 years but could last less or more, depending on how it’s used.