What is the capacity of a 18650 battery?

The capacity of a single 18650 battery generally ranges from 500mAh to 3000mAh.

Generally, 18650 batteries are used in electric tools, and the capacity of the battery pack is crucial. The battery life is a key concern for many tool users. A 12.6V battery pack is connected in series by three 4.2V battery packs, and the series circuit voltage adds up to maintain the same capacity.

If the single capacity of these three batteries is 2000mAh, the final battery pack will have a voltage of 12.6V (commonly known as 12V battery) and a capacity of 2000mAh (2.0Ah). If it is 16.8V or 21V, simply increase the number of batteries. 16.8V is 4 batteries, and 21V is 5 batteries.

Guangzhou Battsys Co., Ltd (NEEQ:837375), was founded in 2006, which is a join-stock high-tech enterprise engaging in ODM and OEM , specially for customized and diverse research&production of lithium-ion battery，BATTSYS annual production capacity is tens of millions battery cells. The products are exported to dozens of countries & regions such as Europe, America & Asia etc.