The lifespan of a coil is depends on your vaping habits.Generally you need to change coils every 1 to 4 weeks of usage. If you vape very frequently, you may find that your coil only lasts for between five and seven days. If you vape moderately, it may last you a couple weeks. And if you are a really light vaper, you can probably get away with only changing your coils once every month or so. Yocan Quartz Coils 7 signs telling you it’s time to change your coils.
More detail, please reference to https://www.yocantech.com/7-signs-to-sh ... coils.html
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