Specification for 21700 Lithium Battery For Electrical Vehicle 3.7V 3100MAH
| No. | Items | Specifications |
Remark |
|
| 1 |
Nominal Capacity |
3100mAh |
0.5C Standard discharge
|
|
| 2 |
Minimum Capacity |
3000mAh | ||
| 3 |
Nominal Voltage |
3.7V |
Mean Operation Voltage
|
|
| 4 |
Delivery voltage |
3.70~3.9V |
Within 10 days from Factory
|
|
| 5 |
Charge Voltage
|
4.2V±0.03V |
By standard charge method
|
|
| 6 |
Standard charging method
|
0.5C constant current,4.2V constant voltage charge to 4.2V,continue charging till current decline to ≤0.01C |
|
|
| 7 |
Charge current |
0.2C | 600mA |
Standard charge, charge time about 7h(Ref)
|
| 0.5C | 1400mA |
Rapid Charge, charge time about: 3.5h(Ref)
|
||
| 8 |
Standard discharging method
|
0.5C constant current discharge to3.0V, | ||
| 9 |
Cell Internal Impedance
|
≤50mΩ |
Internal resistance measured at AC 1KHZ after 50% charge
|
|
| No | Items | Test Method and Condition/ |
Criteria | |
| 1 |
Rated Capacity at 0.2C(Min.)
|
After standard charge, the capacity shall be measured on 0.2C discharge till the voltage discharge to3.0V,
|
≥3800mAh | ≥100% |
|
Rated Capacity at 0.5C(Min.)
|
After standard charge, the capacity shall be measured on 0.5C discharge till the voltage discharge to 3.0V,
|
≥3686mAh | ≥98% | |
|
Rated Capacity at 1C(Min.)
|
After standard charge, the capacity shall be measured on 1C discharge till the voltage discharge to 3.0V,
|
≥3534mAh | ≥96% | |
| 2 |
Cycle Life
|
Charging and discharging battery as blew conditions 0.2C standard charge to 4.2V end-off 0.2C standard discharge to 3.0V cut-off Continuous charge and discharge for 300 cycles ,the capacity will be measure after the200th cycle
|
≥80% of initial capacity | |
| 3 |
Capacity retention
|
The battery to be charge in accordance with standard charge condition at 20~25℃,then storage the battery at an ambient temperature 20~25℃ for 28 days. Measure the capacity after 30 days with 0.2C at 20~25℃ as retention capacity
|
Retention capacity
≥85% |
|
Application for 21700 Lithium Battery For Electrical Vehicle 3.7V 4000MAH
20-50 pcs each box and 4 box pcs in one standard export carton
The single cell is individual package with UN38.3 Certification
Delivery Time Information
7-10 days for bulk cell base on industry pack , this is normal model , we prepare the stock continue
25-30 days for battery pack after the customer confirm the detail accessories for examples PCB Connector etc.
The period of warranty is one year from the date of shipment. We guarantees to give a case of cells with defects proven due to manufacturing process instead of the customer abuse and misuse.
| MODEL | CAPACITY | VOLATGE |
| ICR10440 | 250-400MAH | 3.7V |
| ICR14500 | 450-600MAH | 3.7V |
| ICR17335 | 750-900MAH | 3.7V |
| ICR18490 | 1100-1500MAH | 3.7V |
| ICR18500 | 1500-1800MAH | 3.7V |
| ICR18650 | 2000-2800MAH | 3.7V |
| ICR26650 | 3000-3300MAH | 3.7V |
| ICR20700 | 3500MAH | 3.7V |
| ICR21700 | 4000MAH |
3.7V |
