18650 Lithium Battery

CHAM Cylindrical 18650 Core Technology

Long cycle

Fast Charging

High-nickelic NCM

High energy

CHAM offers a full selection of cylindrical battery cell solutions including 18650, 26650, 21700, and 32700, to big cylindrical cells like 32140, 40135, and 4680 series. A cylindrical cell is a cell enclosed in a cylinder-shaped case, it has an excellent energy density and the high voltage ensures more power to provide in limited space. Because of their small and round size, it’s convenient to assemble them in different combinations. LFP Cylindrical cells are commonly used in smart appliances, e-bikes, medical devices, and energy storage systems.

Datasheet Model Capacity (mAh) Voltage (V) Impedance （mΩ) Max. Continuous Dis. Current Cycle Life Discharge Operating Temperature (℃)

 18650F56 2200 3.7 ≤60 2.2 A (1 C) ≥300 -20 ~ 60

 18650F8M7 2600 3.6 ≤30 7.5 A (3 C) ≥1000 -20 ~ 60

 18650F9M 3200 3.6 ≤40 9.3 A (3 C) ≥1000 -20 ~ 60

 18650F9L 3350 3.6 ≤60 4.8 A (1.5 C) ≥300 -20 ~ 50

 18650F9E 3500 3.6 ≤40 10 A (3 C) ≥1000 -20 ~ 60

 18650F8P 2500 3.6 ≤18 30 A (12 C) ≥250 -20 ~ 80

 18650F30P 3000 3.6 ≤18 30 A (10 C) ≥300 -20 ~ 75

 18650F2T 2000 3.65 ≤40 6 A (3 C) ≥400 -40 ~ 90

 18650F8T 2500 3.6 ≤25 7.5 A (3 C) ≥500 -40 ~ 60

 18650F8R 2600 3.7 ≤60 2.6 A (1 C) ≥300 -20 ~ 60

 18650F30 3000 3.7 ≤60 4.5 A (1.5 C) ≥300 -20 ~ 50

 18650F5P 2200 3.6 ≤20 11 A (5 C) ≥500 -20 ~ 75

 18650F8L 2600 3.6 ≤30 7.5 A (3 C) ≥1000 -20 ~ 60

 18650F9P(L) 2900 3.6 ≤40 8.7 A (3 C) ≥1000 -20 ~ 60

How To Use Cylindrical 18650 Lithium Battery？

Cylindrical 18650 battery is being used in medical devices, power tools, e-bikes, and electric vehicle as a pack. To assemble specific numbers of 18650 cells in series and parallel into a bigger pack according to necessary power, and finally to ensue safety adding a BMS to it. The bigger the pack is, the more complex the manufacturing process will be, more labor will also be devoted into it. That’s why higher capacity 18650 batteries are requested to achieve same power with less quantity of cells

Ways to Prolong The 18650 Battery Lifespan

Temperature is the main factor impacting the life span of battery. 18650 cylindrical cells need to be stored in a dry, room temperature condition. At extreme high temperatures, there can be permanent change on electrode and electrolyte, and lead to the damage of the battery. At lower temperature condition, Ions move more slowly between the 2 electrodes, thus there is few electronic conductivity happens. The range of -20 to +50°C is sufficient but the most optimal storage temperature is 25°C.

18650 Lithium Battery Cells Benefits

The 18650 lithium cell is a Li-ion type battery which has found its application in many fields such as portable electronics, smart home appliance and electric vehicles. The main reason for this NMC 18650 cells being successful is its properties compared to its competitors. The most competitive advantage of 18650 cylindrical cells such as 18650 2200mah battery is energy density, it has the highest power compared to lead acid or LFP battery, to achieve a more compact battery pack for use. Furthermore, it does not have memory effect, which is also a key property for it’s popularity.