The battery is the “lifeline” for the safe use of e-cigarettes, but many users 埋下 safety hazards due to improper operation. Common misunderstandings include: using non-original chargers – different brands of batteries have different charging current and voltage parameters, and mixing chargers can easily lead to overcharging and bulging of the battery; long-term placement of e-cigarettes in high-temperature environments (such as in a sun-exposed car or near heating) – high temperatures will accelerate battery aging and even cause liquid leakage and fire; charging only after the battery is exhausted – long-term deep discharge of lithium batteries will damage the battery cells and shorten the service life. The correct approach is to use the original charger, charge in time when the remaining power is 20%-30%, avoid storing in extreme environments, and ensure safe use from the details.