What does 18650 lithium battery mean

What does 18650 lithium battery mean
The numbers 18650 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-metal hydride batteries. The voltage and capacity specifications are Ni-MH battery voltage of 1.2V, common capacity is 2500MAH, lithium-ion battery voltage of 3.6V, common capacity is 1500MAH-3100MAH.
1 8650 lithium battery voltage
The common rechargeable 18650 lithium battery has a voltage of 3.6 or 3.7v, and it is 4.2v when fully charged, which has little to do with the power (capacity). The mainstream capacity of 18650 batteries is from 1800mAh to 2600mAh The battery capacity is mostly 1200~1600mAh), and the mainstream capacity is even marked with 3500 or 4000mAh or more (remind everyone, if the 18650 with 3100mAh or more is made in China, it can basically be considered fake, and the largest capacity currently produced is 3400mAh).
18650 lithium battery use
The theory of 18650 battery life is 1000 cycles of charging. Due to the large capacity per unit density, it is often used in most of the notebook batteries. In addition, because the stability of the 18650 is very good at work, it is widely used in various electronic fields: often used in high-end glare flashlights, Portable power supply wireless data transmitter, electric thermal clothing, shoes, portable instruments, portable lighting equipment, portable printers, industrial instruments, medical instruments, etc.
18650 lithium battery difference
Generally, 18650 batteries are used more in industry, and rarely used in civilian use. The common ones are more used in notebook batteries and high-end flashlights.
18650 lithium battery model
18650 is only the size and model of the battery. According to the type of battery, it can be divided into 18650 for lithium ion, 18650 for lithium iron phosphate, 18650 for nickel metal hydride (rare), and the common 18650 is lithium ion.