The number of lithium battery represents the external size: 18 represents that the diameter is 18mm, 65 represents that the length is 65mm, and 0 represents the cylindrical battery. It is a standard lithium ion battery model set by Japanese SONY in order to save costs, which is called lithium battery.
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lithium battery pack usually consists of three parts: the cell, the protective board (commonly called PCM) and the structural component of the shell. The best lithium battery pack should choose the following three components:
The best lithium battery pack should be made up of battery cells of well-known brands. Its main capacity is mAh - mAh. The single battery goes through a series of safety and performance tests. After years of quality evaluation, we recommend the following high quality cells:
Top brands of cell: SAMSUNG, PANASONIC, LG, SANYO, SONY, Lishen, BAK, etc.
The core component of lithium battery protective board is protection IC, composed of PCB, magnetic field effect tube (MOS tube), NTC, PTC, capacitor, resistance, diode, triode, etc.
Overcharge protection: When the voltage of the battery pack is larger than the maximum (overvoltage) value and reaches the protection delay value, the IC control CMOS to shut off the charging circuit.
Overdischarge protection: When the voltage of the battery pack is less than the (undervoltage) maximum value, and reaches the protection delay value, IC control DMOS to turn off the discharge circuit.
Overcurrent and short-circuit protection: When the output current of the battery pack P+ and P- exceeds the overcurrent/short-circuit current value and reaches the overcurrent/short-circuit delay value, the control circuit controls the discharge DMOS to shut off the discharge circuit and stop discharging.
High and low temperature protection: When the temperature sensor reaches the temperature threshold and the protection delay value, the control circuit controls to turn off the charge and discharge MOS tube and stop the charge and discharge.
Lithium battery protective board also has functions of power detection, remaining display, battery state display, communication remote control, etc.
According to the requirements of electrical appliances, design the matched shell structures, which tend to be plastic shell, hardware shell, simple PVC thermal shrinkage, etc.
As for lithium-ion battery pack, exquisite assembly capability is of vital importance. Advanced equipment, skilled technical workers, mature management mode and severe production requirements ensure no error in lithium-ion battery pack welding, testing, aging, testing before shipment, and so on, and produce the best lithium-ion battery pack at the end.
Vaping tends to use lithium-ion batteries as power source. Battery life depends on battery type, size, frequency of use and operating environment. Many different battery charger types are available, such as direct socket charger, car charger and USB charger. Currently, lithium batteries account for the highest proportion of vaping on the market.
Sony VTC4（20~30 A / mAh）
Sony VTC5A（25~30 A / mAh）
Sony VTC6（20 A / mAh）
Samsung INR-20S（30 A / mAh）
Samsung INR 20R（22 A / mAh）
Samsung 25 R（20 A / mAh）
Samsung INR -30Q（20 A / mAh）
LG HD2C（25 A / mAh）
LG INR HG2（20 A / mAh）
LG HE2 / HE4（20 A / mAh）
A flashlight is a hand-held electronic lighting tool. Most flashlights on the market use lithium batteries.
SAMSUNG INR-25R mAh 3.6V 20-25A
SAMSUNG INR-30Q mAh 3.6V 20A
LG HG2 mAh 3.6V 20A
LG HE4 mah 3.6V 20A
LG HB6 mAh 3.6V 30A/20C
SONY VTC5a mAh 3.7V 25A
SONY VTC4 mAh 3.7V 30A
MXJO mAh 35A IMR Battery
4 Bay Digital Charger
Multiple Charging Speeds - 1.5A x 4, 1A x 4 or 2A x 2
Compatible with , , , and more
3.6V/3.7V Lithium ion Batteries
Input – DC 5V 2.1A
Output Current – .5A x 4 channels or 1A x 2 channels
Charge capacity of both Ni-MH and Li-ion batteries at the same time
Compatible with all sizes of cylindrical lithium-ion batteries ranging from to
Twice the charging speed of the i2 Charger
Compatible with 1.2V, 3.7V, 4.2V and 4.35V
compatible with IMR, Li-ion, LiFePO4, Ni-MH, and Ni-Cd batteries
JOINSUN Product Page
Compatible with and identifies Li-ion (, , , , ,, , (RCR123), , ), Ni-MH and Ni-Cd (AA, AAA, AAAA, C) rechargeable batteries
4 Bay Compact Charger
Three charging speeds -1.5A, 1A, or 2A
3.6V/3.7V Lithium-ion Batteries
Most Cylindrical Lithium-ion Batteries Ranging In Size From To
Choose the most suitable lithium battery according to the condition of electrical equipment, such as the appropriate brand, voltage, capacity, continuous discharge rate, battery life, etc. The most important thing is to choose the battery with good safety performance. Please check the information below:
As for brands, the international famous brands including Sanyo, Samsung, SONY and LG are reliable at present.
Sanyo and LG are featured with conventional applications, such as glare flashlight, power bank and notebook battery.
SONY products aim at large power and high current. Taking VTC4 as an example, its discharge current can reach 30A, which can be used in vaping, electric toys, model aircraft, etc.
The nominal capacity of the battery is related to its endurance. The unit is mAh. The higher the capacity, the stronger the endurance is. For example, mAh battery can keep discharging for 2 hours at 1.4A.
Continuous discharge capacity is expressed by C. Continuous discharge current = continuous discharge capacity C × capacity
For example, the capacity of an battery is mAh and the continuous discharge capacity is 0.5c. Then the continuous discharge current is 1.4a. If discharge over 1.4a for a long time, the battery life will be seriously affected and may lead to overheat, burning or even explosion.
The smaller the battery resistance, the less consumption, and the stronger the discharge capacity is. The resistance parameter will be generally written to battery introduction page. If you want to choose and buy a battery, do not buy a battery that has more than 100 m Ω.
Many batteries used in series must be of the same brand and model. Otherwise, batteries with high internal resistance but low capacity will have bad effect.
Temperature is a major factor affecting the life of lithium battery. The higher the temperature, the faster the battery aging speed, the higher the temperature, and the greater the damage inside the battery has.
There are flat top and button top lithium batteries. As the figure below, anode on the left with protruding top is button top battery, while anode on the right without protruding top is flat top battery.
In general, I recommend purchasing button top batteries, because they are compatible for a wide range of devices and applications. The anode and cathode of a flashlight tend to have springs, which can be retractable. But if you want to use flat top batteries in series, the anode of the flat top battery cannot touch the cathode of the other battery.
Button top battery has protective board, while flat top battery does not have protective board.
The lithium battery with protective board is several mm higher than that without protective board, and the price is a little more expensive, but the safety is better and the versatility is stronger. The lithium battery with protective board can prevent over-discharging, which may cause over-heat, combustion, explosion and other dangers.
When we buy lithium battery, we will inevitably encounter a lot of fake products in the market. How can we avoid buying fake products?
Choose high-quality suppliers.
Check the workmanship of the battery. The genuine lithium battery shell is made of special material, which is very strong and neat in appearance without extra burrs. The outer surface has certain roughness but feels comfortable, the inner surface feels smooth.
Pay attention to the inspection of brand trademarks, commodity qualification certificates, inspection certificates, etc.
Lithium battery labels use secondary printing technology. In a certain amount of light, it is obvious that the barcode part of the color is darker than the rest when check on the side way.
Battery performance test needs to ensure that the battery performance has passed the test.
In today's increasingly electronic world, the demand for reliable power sources is at an all-time high. Among the most popular and efficient options are lithium-ion batteries. These rechargeable batteries have become the gold standard for a wide range of devices including flashlights, laptops, electric vehicles, and even vaping devices. In this comprehensive guide, we will explore the top options available for purchase, the features to consider when buying, and tips on how to maintain and use these batteries safely.
The lithium-ion battery is a cylindrical cell named after its dimensions: 18mm in diameter and 65mm in length. It has a nominal voltage of 3.7V, which makes it suitable for high-drain applications. Unlike disposable batteries, these batteries are rechargeable, allowing for repeated use at a lower cost and environmental impact.
When it comes to purchasing lithium-ion batteries, several top-rated options stand out. Below are some of the best batteries currently available on the market:
The NCRB is widely praised for its high energy density and reliability. Offering mAh, this battery is perfect for high-drain devices. Known for its long cycle life, the Panasonic model is a favorite among enthusiasts and professionals alike.
Samsung's INR-30Q provides an ideal balance of capacity and discharge rate. With a capacity of mAh and a continuous discharge of up to 15A, these batteries are particularly popular among users of electronic cigarettes and power tools.
The LG HG2 is another excellent choice, offering mAh capacity and rated for continuous discharge up to 20A. Its stable output makes it a preferred option for devices requiring consistent performance.
For those needing high discharge rates, the Sony VTC6 is a leader in the industry. Rated at mAh with a continuous discharge rate of up to 30A, this battery is particularly favored by vaping communities and high-drain applications.
When shopping for batteries, there are several key factors to keep in mind:
The capacity of a battery is typically measured in milliamp-hours (mAh). Higher capacity means longer run time, but may also alter the size and weight of the battery. For most applications, a capacity of at least mAh is recommended.
The continuous discharge rate represents how much current the battery can supply without overheating or experiencing performance degradation. High-drain devices, such as power tools or mods, may require batteries with higher discharge ratings.
Not all batteries are created equal. It's crucial to buy from brands known for reliability and safety. Stick to trusted manufacturers like Panasonic, Sony, and Samsung for the best performance.
Protected batteries come with an inbuilt circuit that prevents over-discharge and overcharge, which can enhance safety. However, they may be slightly bulkier than unprotected batteries. Always assess your specific needs when choosing between the two.
Buying lithium-ion batteries needs to be done from reputable sources to ensure you get quality products. Here are some recommendations:
Using lithium-ion batteries can come with risks if not handled properly. Here are essential safety tips to remember:
No, it's essential to use a charger specifically designed for batteries to avoid damage or even fire hazards.
The lifespan of batteries can vary based on usage, storage, and charging habits but generally ranges from 2 to 5 years.
When handled and stored correctly, batteries are safe to use. Always follow safety guidelines to minimize risks.
In summary, lithium-ion batteries are a versatile and reliable choice for anyone in need of efficient power solutions. With multiple options available for purchase, it’s essential to consider capacity, discharge rates, and brand reputation when making your choice. Following proper usage and safety guidelines ensures you can enjoy the immense benefits these batteries offer while maintaining a safe environment. Whether you are an enthusiast or a casual user, investing in high-quality batteries can significantly enhance your electronic experience.
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