Because this varies by user and device it is hard to give an exact time. The battery life goes by the amount of puffs taken and not by the amount of time that has passed.
Warning: Nicotine or non-nicotine cartridges may be used with this device. Nicotine is highly addictive. This product is not intended to diagnose, treat, cure or mitigate any disease or condition. You must be over the legal age in your state to buy and/or use this product. If you have a demonstrated allergy or sensitivity to nicotine or any combination of inhalants, if you are pregnant or breast-feeding, or if you have heart disease, diabetes, high blood pressure or asthma consult your physician before using this product.