How long an IMR 18650 battery will last from one charge depends on what mAh the IMR battery has, the wattage/voltage setting you have your device set to, how much you use the device, and the resistance of your coil.

For example, using a device set to 12w with a 1.8ohm coil, and a 2500mAh IMR battery will last most average users well over a day, with a 3000mAh IMR battery potentially lasting two full days.

However, if you are using a 0.5ohm coil at 50w, your IMR battery will last just a few hours, as a higher wattage pulls more power from the battery each time you use it.

Overall, we'd expect an IMR 18650 battery to have a lifespan of around 4 months, so all JAC Vapour IMR batteries come with a four-month warranty.