Vape Coils need to be replaced at regular intervals (between 5 days and two weeks), and the length of time for those intervals changes depending on the vape device and your use of it. How often you use your vape device, your power settings and what e-liquids you use in the device will affect your Vape Coils lifespan. If you encounter a burnt taste in your Vape tank, you know it’s probably time to change the coil.