Smoant is one of the core e-cigarette brands of the Cloupor Group, and we have always been committed to technological innovation and the promotion of a “harm reduction” healthy lifestyle. Do you know about the best battery for vaping in 2024? Let’s take a look!
Battery is the most important part of the e-cigarette device, which mainly provides power to the e-cigarette and is used to heat the heating wire, which in turn makes the atomizer work and finally produces smoke. And there are a wide variety of batteries in the e-cigarette market. What kind of battery is more suitable for e-cigarette use? How do we pick a battery?
First of all, we need to understand how many types of batteries are used in electronic cigarette products?
Batteries used in electronic cigarettes are mainly divided into the following two types:
1.Lithium polymer battery is a light, compact, high energy, no memory effect battery type. Its voltage is usually 3.7V or 3.8V, and the self-discharge rate is low, less than 3%. This type of battery has a small size and weight, making it ideal for use in small devices such as e-cigarettes. Compared to traditional lithium-ion batteries, lithium-polymer batteries offer greater safety and reliability because they are more structurally stable and less prone to dangerous situations such as leakage or explosion.
2. Lithium-ion batteries are a type of battery with high energy density and high average output voltage, which is usually 3.7~3.8V (3.2V for lithium iron phosphate), and have a low self-discharge rate of less than 2% per month and no memory effect. They can be used in a wide temperature range, and can be charged and discharged quickly. Lithium-ion batteries have a very long service life, typically up to 500 or more cycles, or even 1,000 or more. They are also known as green batteries, because they do not contain harmful elements such as cadmium, lead and mercury.
At present, in the field of electronic cigarettes, the commonly used batteries are power lithium batteries, with lithium ferrous phosphate as the material. Power lithium battery models include 18350, 18650, 21700 and 26650, etc. The first two digits indicate the diameter of the battery, and the following two digits indicate the height of the battery. For example, for 18350, 18 indicates the diameter, 35 indicates the length, and 0 represents the cylinder. Power lithium batteries have high energy density and discharge rate, and the typical designed capacity is below 3000mAh, a discharge rate of 5~15C, discharge current of 10A or more.
Among the models of power lithium batteries such as 18350, 18650, 20700, 21700 and 26650, 18650 is the most common battery for e-cigarettes. That’s because 18650 batteries are smaller in size. Such battery shape has a relatively high energy density, which indicates more power can be delivered in a limited amount of battery space, making e-cigarette devices more compact and lightweight. In addition, 18650 batteries have a long lifespan and good self-discharge performance, making them ideal for e-cigarette devices that require extended use. In contrast, newer batteries such as 20700 and 21700 may have higher energy densities and faster charging speeds, but their larger size may increase the overall size and weight of devices. In addition, they may not be as competitive as 18650 batteries in terms of price and availability.
The specific differences are tabulated below:
Mass Production Specification Sheet
| Mode1 Number | Nomina1 Capacity (mAh) | Min Capacity (mAh) | Resistance (mΩ) | Size(mm) | Voltage (V) |
| 18650 | 3000mAh | 2000mAh | 10m~30mΩ | Dia:18mm,H:65mm | 3.7V |
| 20700 | 4050mAh | 3000mAh | 10m~30mΩ | Dia:20mm，H:70mm | 3.7V |
| 21700 | 4600mAh | 4400mAh | 10m~30mΩ | Dia:21mm,H:71mm | 3.7V |
| 26650 | 4650mAh | 4500mAh | 10m~30mΩ | Dia:26.2mm，H:65.6mm | 3.6V |
Secondly, what kind of battery is more suitable for electronic cigarettes?
From the above we already knew, basically, the typical battery mode for the application of electronic cigarettes is 18650 lithium batteries, so the choice of 18650 lithium batteries is relatively economical and affordable.
Pros of the 18650 battery
1. Large capacity: 18650 lithium-ion battery capacity is usually between 1200mAh to 3600mAh, while most of the battery capacity is only about 800mAh, which makes it has a high energy density, providing more durable use time.
2. Long service life: service life of up to 500 times, 1 times faster than ordinary batteries.
3. High safety performance: 18650 lithium-ion batteries have the characteristics of high safety performance, non-explosive, non-combustible, non-toxic, zero pollution, high temperature performance, discharge efficiency of 100% at 65 degrees, and fully comply with RoHS trademark certification.
4. Safety protection: Add a protection plate to avoid battery overcharge and overdischarge, realize the battery’s lifespan.
Good charge and discharge performance: 18650 lithium-ion battery with high charge and discharge efficiency, generally discharge efficiency of 100% at 65 degrees Celsius.
5. High voltage: 18650 lithium-ion battery voltages are generally 3.6V, 3.8V and 4.2V, much higher than the nickel-cadmium and nickel-metal hydride batteries 1.2V voltage.
6. No memory effect: No need to empty the remaining charge before charging, which is easy to use.
Low self-discharge rate: 18650 lithium-ion batteries have a low self-discharge rate of less than 2% per month, continuing the relatively long service life.
7. Low internal resistance: Polymer material and its internal resistance is lower than ordinary liquid batteries.The domestic polymer material and its internal resistance can not exceed 35mΩ, greatly reducing the battery’s self-consumption of electricity, and extending the standby time of the device. The polymer lithium battery has a large discharge current, so it is more suitable for remote control, and is expected to replace the nickel-metal hydride battery.
8. Type of connection: 18650 lithium-ion battery packs can be combined in the form of series and parallel.
9.Applicability: Laptop computers, walkie-talkies, portable DVD, instruments, audio equipment, airplane models, toys, video cameras, digital cameras and other electronic devices.
10. Easy to form a battery pack: Due to the 18650 lithium-ion battery size unity, making it easy to form a battery pack, improves the flexibility of use.
11. Less short circuit: 18650 lithium-ion battery positive and negative poles are separated, reducing the phenomenon of short circuit.
Cons of 18650 lithium-ion battery
1. High maintenance costs: With the growth of the use of time, following the battery performance will decline. Regularly replace the battery or overhaul, which improves the maintenance costs.
2. Safety: Not safe enough in comparison to polymer batteries.
3. Low capacity: Can not support the high-power applications, as in some of the need for large-capacity battery equipment.
4. Highly susceptible: The performance may be reduced whether in the high temperature or low temperature environment.
5. Shorter discharge time: Some devices require a long time continuous power supply, but the discharge time of 18650 lithium-ion batteries is relatively short, and it can not meet this requirement.
6. Lower monomer voltage: For the sake of being a monomer battery, its voltage is slightly lower than some other batteries, which leads to an overload of circuit.
7. Fixed size and dimensions: The use of objects and scenes is limited and can not be expanded.
8. Higher cost: Compared with some other batteries, the cost of an 18650 lithium-ion battery is higher.
9. Long charging time: 18650 lithium-ion battery with longer charging time in comparison with some rapid charging technology.
To summarize, 18650 lithium-ion batteries are more suitable for the use of e-cigarette products compared to other batteries. Our SMOANT Knight 80 is equipped with a single 18650 battery with a power of up to 80w, and also developed based on strong magnets and boxed special design to avoid the children to touch or use. It is a good electronic cigarette product with the functions of 8 coils compatible, Al ANT chip, replaceable single 18650, auto-adjust wattage by resistance, airflow control system, leak-proof and other features.
