21700 Lithium Battery

21700 lithium batteries are an emerging battery technology that has benefited from advances in the battery industry. The 21700 lithium-ion Battery is a cylindrical cell that offers higher energy density, longer life cycle, and smaller form factor than traditional battery technologies. The 21700 lithium-ion battery has a standard size of 21mm in diameter and 70mm in length, making it an ideal choice for electric vehicles, renewable energy systems, and consumer electronics. CHAM is one such 21700 battery manufacturer that specializes in the production of 21700 cylindrical cell batteries. Our 21700 battery cells have a higher charging efficiency, lower self-discharge rate, and excellent cycle life, making them a popular choice in the energy storage industry.

Cylindrical Cell

Advanced Energy Storage

Green Mobility

Intelligent Equipment

Prismatic Cell

TYPES

Wide temperature

Energy

High-rate

Medium-rate

Result

Difference Between 21700 Lithium Battery And 18650 Lithium Battery

Size:

The 18650 battery measures 18mm in diameter and 65mm in length.

The 21700 battery measures 21mm in diameter and 70mm in length. Thus the 21700 is larger in dimension.

Capacity:

Due to its larger size, the 21700 battery generally offers a higher capacity than the 18650. This translates to longer run times for devices.

18650 batteries typically have capacities up to around 3500mAh.

21700 batteries can reach capacities of up to 5000mAh.

Energy Density:

The 21700 generally provides a higher energy density, meaning it can store more energy in a given volume.

Applications:

18650 batteries are commonly found in laptops, flashlights, and some electric vehicles.

21700 batteries are increasingly used in electric vehicles (like Tesla models) and high-power devices due to their increased capacity and energy density.