21700 Battery Cell
Features:
● Appearance: Cylindrical
● Shell: Nickel-plated Steel Shell
● Weight ≈ 69.5g
● Diameter < 21.7±0.3mm
● Height ≤ 70.8mm
Application:
● Outdoor portable power bank
● Fast charging power bank
● Strong flashlight
● Smart furniture
● Scooter
● Electric bicycle
Model | Nominal Capacity | Minimum Capacity | Internal Resistance | Cycle Life | Instantaneous Maximum Magnification (5 seconds) | Maximum Continuous Magnification |
21700-40H | 4400mAh | 4000mAh (Discharge from 0.2C to 2.75V) | ≤18mΩ | ≥500weeks (0.5C charging and 8C discharging) | 8C | 10C |
21700-4500mAh-3C | 4500mAh | 4500mAh (Discharge from 0.2C to 2.75V) | ≤18mΩ | ≥300weeks (0.5C charging and 3C discharging) | 3C | 4C |
21700-5000mAh | 5000mAh | 4900mAh (Discharge from 0.2C to 2.5V) | ≤18mΩ | ≥500weeks (0.5C charging and 2C discharging) | 2C | 3C |
21700-4000mAh-3C | 4000mAh | 4000mAh (Discharge from 2C to 2.75V) | ≤18mΩ | ≥800weeks (0.5C charging and 3C discharging) | 3C | 4C |
● Nominal Capacity: 4000mAh
● Minimum Capacity: 4000mAh (Discharge from 0.2C to 2.75V)
● Internal Resistance≤18mΩ
● Cycle Life≥500weeks (0.5C charging and 8C discharging)
● Maximum Continuous Magnification: 8C
● Instantaneous Maximum Magnification (5 seconds): 10C
● Nominal Capacity: 4500mAh
● Minimum Capacity: 4500mAh (Discharge from 0.2C to 2.75V)
● Internal Resistance≤18mΩ
● Cycle Life≥300weeks (0.5C charging and 3C discharging)
● Maximum Continuous Magnification: 3C
● Instantaneous Maximum Magnification (5 seconds): 4C
● Nominal Capacity: 5000mAh
● Minimum Capacity: 4900mAh (Discharge from 0.2C to 2.5V)
● Internal Resistance≤18mΩ
● Cycle Life≥500weeks (0.5C charging and 2C discharging)
● Maximum Continuous Magnification: 2C
● Instantaneous Maximum Magnification (5 seconds): 3C
● Nominal Capacity: 4000mAh
● Minimum Capacity: 4000mAh (Discharge from 2C to 2.75V)
● Internal Resistance≤18mΩ
● Cycle Life≥800weeks (0.5C charging and 3C discharging)
● Maximum Continuous Magnification: 3C
● Instantaneous Maximum Magnification (5 seconds): 4C
other types
Features:
● Appearance: Cylindrical
● Shell: Nickel-plated Steel Shell
● Weight ≈ 46g
● Diameter < 18.5mm
● Height ≤ 65.3mm
Application:
● Chargers
● Lighting
● Flashlights
● Audio
● Monitor
● Laptops
● Security
