Dongguan Greenway Battery Co.,Ltd.
FAX：(+86) 769 2229 0098
ADD：Xinyuan Road, Tongsha Industry Park, Dong
Cheng District, Dongguan, China
How big is the 18650 battery capacity
The mainstream capacity of the 18650 battery is 1800mAh~3500mAh, and a small part has a nominal capacity of more than 4000mAh.
18650 is a battery model that specifies the external dimensions of the battery, but does not specify the battery capacity. Therefore, the 18650 batteries produced by different manufacturers have different battery capacities. However, on the 18650 battery, the battery capacity is generally marked. When purchasing an 18650 battery, the merchant will also indicate the battery capacity.
18650 is a standard lithium-ion battery model set by the lithium-ion battery company in order to save costs, where 18 means a diameter of 18mm, 65 means a length of 65mm, and 0 means a cylindrical battery.
There are two nominal voltages of 18650 battery on the market, 3.7V and 4.2V. These two nominal 18650 batteries are actually the same. This is only the voltage marked by the manufacturer is different. 3.7V refers to the typical voltage when the battery is discharged during use, and 4.2 refers to the voltage when the battery is fully charged.