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List of Lithium-ion Battery Sizes and Uses

List of Lithium-ion Battery Sizes and Uses

  • Time of issue:2020-03-24 13:34

List of Lithium-ion Battery Sizes and Uses

Information

Lithium battery is a kind of chemical battery with high energy and high / low temperature adaptability. Its main characteristics are high energy density, high working voltage, low self-discharge rate, and no memory effect. Among them, the low self-discharge rate is the most prominent advantage of lithium batteries. Cylindrical lithium-ion battery cells are usually represented by five digits. From the left, the first and second digits refer to the cell diameter, the third and fourth digits refer to the battery height, and the fifth digit refers to the circle. For example, the 18650 means the diameter of this cell is 18mm, the height is 65mm and it is in cylindrical type. In addition to our common 18650 batteries, what other sizes do you know? The following introduces several sizes of lithium batteries.

 

Names Similar Size Capacity (mAh) Dimensions (mm)
Uses
Diameter Length
10440 AAA 250 - 350 10 44 mainly used in mini electronic products, such as tiny flashlights, mini stereos, loudspeakers, etc
14500 AA 700 - 1000 14 50 consumer electronics, such as LED flashlights, wireless audio, electric toys, digital cameras, etc.
16340 CR123A 400 - 900 16 34 LED flashlights, headlights, laser lights, etc.
18650 / 1500 - 3500 18 65 Used in many laptop computer batteries, cordless power tools, certain electric cars, electric kick scooters, most e-bikes, vaping, and LED flashlights.
21700 / 3000 - 5000 21 70 E-bikes, solar street lights, LED lights, portable power tools, etc.
26650 / 2400 - 5750 26 65 For radio control hobby use. Also used in larger, high-powered LED flashlights and some electronic cigarettes.
32650 / 5000 - 6500 32 67.7 Suitable for electric toys, backup power supply, UPS batteries, wind power generation systems, and wind-solar complementary power generation systems.

Lithium-ion cells are made in various sizes, often assembled into battery packs for portable equipment. Many types are also available with an internal protection circuit to prevent over-discharge and short-circuit damage. This can increase their physical length; for example, an 18650 is around 65 mm long, but may be around 68 mm long with an internal protection circuit. Safe and economic recharging requires a high quality charger specified for these cells. Popular applications include laptop battery packs, electronic cigarettesflashlightselectric vehicles, and cordless power tools.

 

XTAR Batteries Specifications

 


Battery Type
Normal Capacity Normal Voltage Max Continuous Discharge Current Max Pulse Discharge Current Energy
Protected or
Unprotected

Positive Pole (Button/Flat)

Weight

Size
21700 4200mAh 3.6V 30A 45A 15.12Wh


Unprotected



Flat Top



70g



21 x 70mm
21700 3750mAh 3.7V 30A 35A 13.875Wh

Unprotected


Flat Top
 

21 x 70mm
20700 3000mAh 3.6V 30A 35A 10.8Wh


Unprotected



Flat Top



60g



20 x 70mm
18650 2600mAh 3.6V 25A 35A 9.36 Wh


Unprotected



Flat Top



48g



18 x 65mm
18650 3500mAh 3.6V 10A / 12.6Wh

Protected


Button Top
 

18 x 68mm
18650 2600mAh 3.7V 4.5A / 9.62 Wh


Protected



Button Top



47g



18 x 68mm
18650 2200mAh 3.7V Discontinued / 8.14Wh

Protected


Button Top


44g


18 x 68mm
18650 3000mAh 3.6V 4.5A / 10.8 Wh

Protected


Button Top
 

18 x 69mm


26650


5200mAh


3.6V


7A


/


18.72Wh


Protected


Flat Top


95.5g


26 x 68mm


16340


650mAh


3.7V


0.95A


/


2.405Wh


Protected


Button Top
 

16 x 34mm


14500


800mAh


3.7V


1.5A


/


2.96Wh


Protected


Button Top


19g


14 x 50mm


CR123A


1400mAh


3.0V


1.4A


/


4.2 Wh


/


Button Top
 

17 x 34.5mm

For vapers, the XTAR 21700 4200mAh can be your best choice. Its high drain will bring you a great vapelife. For LED flashlights or other power devices, the XTAR 18650s with different capacity are your consideration. If you want a huge capacity, then take the XTAR 26650 battery. It is great for tactical operations, search and rescue, illumination, camping and outdoor excursions produce significant outputs in a compact body.

A large selection of our batteries can be bought in bulk, letting you take advantage of big discounts! You can directly contact our sales team now via email: [email protected]

 

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