What is the difference between the 26650 lithium battery and the 18650 lithium battery

　　The 26650 lithium battery and the 18650 lithium battery are both cylindrical lithium batteries. What is the difference between the 26650 lithium battery and the 18650 lithium battery? Let's take a look at the differences between the 26650 lithium battery and the 18650 lithium battery.

　　26650 lithium battery

　　26650 lithium battery is a type and specification of cylindrical lithium battery, which refers to cylindrical battery with a diameter of 26mm and a length of 65mm. It is generally referred to as lithium battery, including lithium primary battery and lithium ion battery. Common lithium batteries made of nickel cobalt manganese cathode materials and lithium iron phosphate materials - INR26650-3.6V-4500mAh, IFR26650-3.2V-3200mAh. It is used in electric tools, lighting, solar energy storage, electric vehicles, toys, instruments and meters, UPS backup power, communication equipment, medical equipment and special lamps.

　　18650 lithium battery

　　Common 18650 batteries are divided into lithium ion batteries and lithium iron phosphate batteries. The nominal voltage of lithium ion battery is 3.7v, the charging cut-off voltage is 4.2v, the nominal voltage of lithium iron phosphate battery is 3.2V, the charging cut-off voltage is 3.6v, the capacity is generally 1200mAh - 3350mAh, and the common capacity is 2200mAh - 2600mAh. The life theory of 18650 lithium battery is 1000 cycles of charging.

　　The 18650 lithium battery has a large capacity per unit density, so most of it is used as notebook computer batteries. In addition, the 18650 has very good stability in work, and is widely used in various electronic fields: high-end flashlights, portable power supplies, wireless data transmitters, electric thermal clothing, shoes, portable instruments, portable lighting equipment, portable printers, industrial instruments, medical instruments, etc.

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