E-cigarette batteries are the core component of e-cigarettes. They power the device and drive the atomizer to heat the e-liquid and produce vapor. This article helps you understand the definition, classification, specifications, purchasing, and storage of e-cigarette batteries.

E-cigarette batteries: The heart of your atomizer. Choosing the right battery not only affects the lifespan of your device but also directly impacts your vaping experience.

I. Definition of an E-cigarette Battery

Definition: An e-cigarette battery is a rechargeable battery (some disposable e-cigarette batteries for small puffs are non-rechargeable), typically a lithium-ion battery. It converts chemical energy into electrical energy through a chemical reaction, powering the e-cigarette's circuit board and atomizer.

II. Classification of E-cigarette Batteries

Based on Removability

Internal Battery: The battery is non-removable and integrated into the device.

Removable Battery: The battery is removable for easy replacement and upgrades.

Based on the shape:
Cylinder
Cube

III. E-cigarette Battery Specifications and Specifications
Capacity (mAh): Indicates the amount of energy the battery can store. A larger value indicates a longer battery life.
Voltage (V): Indicates the battery's output voltage, typically 3.7V or 4.2V.
Current (A): Indicates the battery's instantaneous discharge capacity. A larger value indicates the power it supports.
Cycle Count: Indicates the number of times the battery can be charged and discharged. A higher value indicates a longer battery life.
Protection Board: Responsible for protecting the battery from overcharge, overdischarge, short circuit, and other issues.

IV. E-cigarette Battery Purchasing Considerations
Brand Selection: Choose a well-known brand for greater quality assurance.
Capacity Selection/Battery Life Requirements: Choose an appropriate capacity based on your personal usage habits. If you're looking for a long battery life, opt for a larger capacity battery.
Safety Certification: Look for batteries with safety certifications, such as UL and CE.
Protection Board: Ensure the battery has a built-in protection board for safety.
Compatibility: Choose a battery model that is compatible with your device. Condition: New batteries offer more stable performance, so avoid buying refurbished or used batteries.
Power Requirements: If high power output is required, choose a battery with a high discharge rate.
Device Size: If space is limited, choose a smaller battery.

V. E-Cigarette Battery Use and Care
Charging: Use the original charger and avoid overcharging or discharging.
Storage: Avoid high temperatures and humidity, and keep the battery charge around 50%.
Regular Inspection: Regularly inspect the battery's appearance. If any deformation, bulging, or other signs are observed, discontinue use immediately.

VI. Common E-Cigarette Battery Models

E-cigarette battery models vary, but the most common are cylindrical lithium-ion batteries, designated by numbers. These numbers represent the battery's dimensions, such as diameter and length. Below is a detailed introduction to several common models:

18650 Battery
Most Common Model: In the e-cigarette industry, the 18650 battery is undoubtedly the most widely used model.
Dimensions: 18mm diameter, 65mm length. Features: Moderate capacity, stable power output, wide compatibility, and relatively affordable price.
Applications: Most mid- to high-end e-cigarette devices use 18650 batteries.

26650 Battery
High-Capacity Battery: The 26650 battery has a larger diameter than the 18650, resulting in a higher capacity.
Dimensions: 26mm diameter, 65mm length.
Features: Long battery life, suitable for high-power devices.
Applications: Commonly used in e-cigarette devices that require large vapor volume and long battery life.

18350 Battery
Compact Battery: The 18350 battery is shorter than the 18650, making it suitable for smaller devices.
Dimensions: 18mm diameter, 35mm length.
Features: Compact and portable, but with relatively low capacity.
Applications: Commonly used in small mechanical mods and some mini e-cigarettes.

Other Models

In addition to the three common models mentioned above, there are also models such as 18500 and 20700, but these are relatively rare. For built-in batteries, the appropriate battery is usually selected based on the device's space and needs.

VII. Precautions
Safety First: Purchase batteries from reputable brands and avoid inferior products.
Proper Charging: Use the original charger and avoid overcharging or discharging.
Regular Inspection: Regularly inspect the battery. If any deformation, bulging, or other signs are observed, discontinue use immediately.
Avoid High Temperatures: Avoid exposing the battery to high temperatures.