Hi Longevity of coils does vary depending on how often you are vaping, length of draws taken and other factors such as: power the device is set to, liquid being used, if the liquid is too thick for the coil then it will have to work a lot harder to vaporise the liquid. It is also important to ensure you are always priming your coils before using the device, more information can be found via this link: https://www.theelectroniccigarette.co.uk/vape-coils/tips-for-priming-your-vape-coil If you have had the device for quite some time this is another factor that could be affecting coil performance. If you do ever need any help, support or guidance you can feel free to contact us via live chat, email or by calling 01254 269380. Many Thanks Mick The Electronic Cigarette Company

Afternoon Thanks for sharing your own personal feedback, unfortunately coil lifespan is indeed quite variable, sometimes a coil can last a week or more, but that is just a very general guideline lifespan, they are mass produced and quite intricate parts that are consumable items. Lifespan is affected by multiple factors such as liquid being used, the power settings you are using and the device itself such as age and general wear and tear of the device. Liquid that is high in VG content, sugars or sweeteners can reduce lifespan of coils too. We would also recommend that you always ensure that your device is adequately charged, maintained and that you are operating the device at the correct wattage, also be sure to follow correct priming of the coils before usage, all of these things will help to get the best possible lifespan, however as previously mentioned this will always vary and unfortunately they are not designed or intended to last for any significant period of time, and they do require regular replacement. Less flavour, vapour, change in taste, burnt taste, gurgling sound or tank leaking are all indicators that the coil is due for replacement. Many Thanks Eleaf UK