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Many people do not know what type of battery the 18650 lithium battery is. They always think that the 18650 lithium battery is the same size as the commonly used No. 5 battery and can be mixed. What are the differences between No. 5 battery and 18650 lithium battery.
1、 What is the No. 5 battery?
No. 5 battery (i.e. AA, R6) is one of the battery types. Its general size is 14mm in diameter and 50mm in height. No. 5 battery is widely used in many small appliances and digital products because of its small size and moderate capacity.
2、 What is the 18650 lithium battery?
18650 lithium battery is a type of cylindrical battery, also called 18650 lithium ion battery. The battery cell is mainly composed of five parts: metal shell, positive pole, negative pole, film and electrolyte. They perform their own duties to ensure normal charging and discharging. The 18650 is not a number of batteries, but a type A battery. The numbers 18650 in 18650 lithium batteries represent the external dimensions: 18 refers to the battery diameter of 18.0mm, and 650 refers to the battery height of 65.0mm. Common 18650 batteries are divided into lithium ion batteries, lithium iron phosphate batteries and nickel hydrogen batteries.
3、 What are the differences between No. 5 battery and 18650 lithium battery?
In addition, the 18650 lithium battery is widely used in various electronic fields because of its excellent stability in work: it is commonly used in high-end flashlights, portable power supplies, wireless data transmitters, electric heating warm clothing, shoes, portable instruments and meters, portable lighting equipment, portable printers, industrial instruments, medical instruments, etc.