There are a couple of varialbes that will determine how long your Personal Vapour Device batteries will last. Typically, depending on the type of battery and how much you use the device, smaller batteries will range from 1 to 3 hours, while the larger batteries will last from 3 to 15 hours of use before it must be re-charged.
Some devices equiped with a lighted button switch, will blink 3-4 times when the battery is getting low on power. Manufacturers and suppliers suggest carrying spare batteries and a charger when traveling or during other times when high usage is anticipated.
Truly this question depends on how much you use your personal vaping device. Heavy vapers will be charging their batteries more often then light vapers. If you are a heavy vaper we recommend a larger battery. It makes your vaping experience much more enjoyable.