Advantages of 21700 battery cells
1) The battery cell capacity is increased by 35%.
(2) The energy density of the battery system is increased by about 20%.
The energy density of the 18650 battery system is about 250Wh/kg, and the energy density of the 21700 battery system is about 300Wh/kg. The volumetric energy density of the 21700 battery is nearly 20% higher than the original 18650
(3) The cost of the system is expected to drop by about 9%.
The power lithium battery system with 21700 batteries is priced at US$170/Wh, while the 18650 battery system is priced at US$185/Wh. The cost can be reduced by about 9%.
(4) The weight is expected to decrease by about 10%. 21700 liion battery cell, can making 8000mah 8400mah 22.2v 6s2p 10c, 12000mah 12600mah 15000mah 22.2v 6s3p 8s3p 10c for fpv 7-15inch fpv drones..
