| Customization: | Available |
|---|---|
| Type: | Li-ion Battery |
| Cathode Material: | NCM |
|
Still deciding? Get samples of US$ 2/Piece
Request Sample
|
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
18 Years Factory Price 3.7V Li-ion Battery cell 21700 4000mAh Inr18650 Rechargeable Li-ion Battery Cell for Outdoor Lamp Electric Lamp Wheelchair Scooter
| Item | Specification |
| Standard discharge capacity | Min.4,000mAh Charge:0.5C(2A),4.20V,0.05C(200mA) cut-off @ RT Discharge: 0.2C(800mA), 2.5V cut-off @ RT |
| Rated discharge capacity | Min.3.900 mAh - Charge:1.5C(6A),4.20V,0.025C(100mA)cut-off @RT - Discharge: 10A, 2.5V cut-off @ RT |
| Nominal voltage | 3.6V |
| Standard charge | CCCV,2A,4.20 V,200mA cut-off |
| Charging time | Standard charge :180min / 200mA cut-off(@ RT) Rated charge: 70min / 100mA cut-off(@ RT) |
| Max.continuous discharge | 35A(at 25°C) |
| Discharge cut-off voltage | 2.5V (End of discharge) |
| Cycle life | Capacity ≥ 2,400mAh @ after 250cycles 60% of the standard capacity @ RT) Charge :6A,4.20V,CCCV 100mA cut-off @ RT Discharge: 35A , 2.5V cut-off @ RT with 80C T-cut |
| Retention characteristics | Capacity recovery(after the storage) > 3,510 mAh (90% of the rated capacity @ RT) Charge : 6A,420V,CCCV 100mA cut-off @ RT Storage : 30 days (@ 60C) Discharge : 10A, 2.5V cut-off @ RT |
| Cell weight | 70.0g max |
| Cell dimension | Height : Max 70.30mm Diameter : Max 21.22mm |
| Operating temperature(*1): (Ambient) |
Charge : 0 to 45°C Discharge: -20 to 60°C |
| Operating temperature("2) (Surface) |
Charge : 0 to 50°C (recommended recharge release < 45°C) Discharge:-20 to 80°C (must re-discharge release < 60°C) |
| Storage temperature(-3) (Recovery 90% after storage) |
1 year 0~25°C 3 months 0~45°C 1 month 0~60°C |
){kind=link}