LiFePO4 Lithium Battery Cell Cylindrical OEM ODM Rechargeable 3.7V 4000mah 21700 Battery Cell Wholesale
LiFePO4 Lithium Battery Customized Wholesale Cylindrical Li-Ion Rechargeable 3.7V 4000mah 21700 Lithium Ion Battery Cell
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Chalong Fly provides ODM&OEMs with assurances of quality for our products and services. We distribute battery packs and battery cells from many reputable brand names. We manufacture a variety of custom battery packs and power supplies made to customer specifications.
| INR 21700 40T Battery Specification Sheet | |
| Item | Specification |
| Standard Discharge Capacity |
Min. 4,000mAh - Charge: 0.5C(2A), 4.20V, 0.05C(200mA) cut-off - Discharge: 0.2C(800mA), 2.5V cut-off |
| Rated discharge capacity |
Min. 3,900 mAh - Charge:1.5C(6A), 4.20V, 0.025C(100mA)cut-off - Discharge: 10A, 2.5V cut-off |
| Nominal voltage | 3.6V |
| Standard charge | CCCV, 2A, 4.20 V, 200mA cut-off |
| Rated charge | CCCV, 6A, 4.20 V, 100mA cut-off |
| Charging time | Standard charge : 180min / 200mA cut-off Rated charge: 70min / 100mA cut-off |
| Max. continuous discharge | (Surface temperature) 35A(Without temperature cut) 45A(With 80℃ temperature cut) |
| Discharge cut-off voltage | 2.5V (End of discharge) |
| Cycle life |
Capacity ≥ 2,400mAh/ after 250cycles - Charge : 6A, 4.20V, CCCV 100mA cut-off |
| Retention characteristics |
Capacity recovery(after the storage) ≥ 3,510 mAh - Charge : 6A, 4.20V, CCCV 100mA cut-off |
| Cell weight | 70.0g max |
| Cell dimension | Height: Max 70.30mm Diameter: Max 21.22mm |
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