How long does an electric bike controller last?

The lifespan of an electric bike controller can vary depending on the quality of the controller, how it is used and maintained, and how often it is used. Generally, a well-made controller should last for several years, but it may need to be replaced eventually as wear and tear takes its toll. Some manufacturers offer warranties on their controllers, which can give you an idea of the expected lifespan. It is also important to keep the controller clean and dry, and to avoid exposing it to extreme temperatures or other harsh conditions, which could shorten its lifespan.