3.6V Samsung-INR21700-30T Battery
INR21700-30T
The Samsung INR21700 30T battery comes up with a minimal discharge capacity of 3000mAh, the voltage of 3.6V .
This is an absolutely excellent cell for anyone seeking high performance 21700 cells.
HIGHLIGHTS OF Samsung INR21700 30T
Standard discharge capacity: min. 3000mAh (1.5A charge 0.1A cut-off, 0.6A discharge, 2.5V cut-off)
Rated discharge capacity: min. 2650mAh (4A charge 0.1A cut-off, 10A discharge, 2.5V cut-off)
Nominal voltage: 3.6V
Charge voltage: 4.2V
Standard charge: 1.5A charge 0.1A cut-off
Rated charge: 4A charge 0.1A cut-off
Max. continuoys discharge: 35A at 25°C
Discharge cut-off voltage: 2.5V
Cycle life: 250 cycles to 60% at 35A discharge.
Cell weight: 69.0g max
Cell dimension: Height: Max: 70.40mm, Diamter: max. 21.22mm
Operating temperature (surface): Charge 0°C ~ 50°C (Recommended <45°C), Discharge -20C° ~ 80°C (Recommended <60°C)
Storage temperature: 1 month: -20°C ~ 60°C, 3 months: -20°C ~ 45°C, 1 year: -20°C ~ 25°C
MIND
Do not incinerate;
Do not disassemble;
Do not short positive and negative contacts;
Do not expose to heat;
Do not completely discharge;
Do not use force to install a li-ion battery;
Use only high quality battery charger;
Charge fully before first use;
Store in cold and dry place at approximately nominal voltage
APPEARANCE
There shall be no such defects as deep scratch, crack, rust, discoloration or leakage, which may adversely affect the commercial value of the cell.
Diameter : Max. 21.22 mm
Diameter is defined as the largest data value measured on the “A” area of a cylindrical cell.
Height :Max. 70.30 mm
Nominal Specification of Samsung-21700-30T
| Item | Specification |
|---|---|
| Standard discharge capacity(1C=3,000mA) | Min. 3,000mAh |
| Charge: 0.5C (1.5A), 4.20V, 100mA cut-off | |
| Discharge: 0.2C (600mA), 2.5V cut-off | |
| Rated discharge capacity | Min. 2,950mAh |
| Charge: 4A, 4.20V, CCCV 100mA cut-off | |
| Discharge: 10A , 2.5V cut-off | |
| Nominal voltage | 3.6V |
| Standard charge | CCCV, 1.5A, 4.2V, 100mA cut-off |
| Rated charge | CCCV, 4A, 4.2V, 100mA cut-off |
| Charging time | Standard charge : 130min / 100mA cut-off |
| Rapid charge: 60min (at 25℃) / 100mA cut-off | |
| Max. continuous discharge(Continuos) | 35A(at 25℃), 60% at 250 cycle |
| Discharge cut-off voltage/End of discharge | 2.5V |
| Cell weight | 69.0g max |
| Cell dimension | Height : Max. 70.30 mm |
| Diameter : Max. 21.22 mm | |
| Operating temperature( surface temperature) | Charge : 0 to 50℃ (recommended recharge release < 45℃) |
| Disharge : -20 to 80℃ (recommended re-discharge release < 60℃) | |
| Storage Temperature | 1.5 year: -20~25℃ |
| 3 months : -20~45℃ | |
| 1 month : -20~60℃ |
Note: If the cell is kept as ex-factory status (50% of charge), the capacity recovery rate is more than 80%.
Characteristics
Standard Charge
This “Standard charge” means charging the cell CCCV with charge current 0.5CmA(1,500mA), constant voltage 4.2V and 100mA cut-off in CV mode at 25℃ for capacity.
Rated charge
Rated charge means charging the cell CCCV with charge current 4A and 100mA cut-off at 25℃
Standard Discharge Capacity
The standard discharge capacity is the initial discharge capacity of the cell, which is measured with discharge current of 600mA(0.2C) with 2.5V cut-off at 25℃ within 1hour after the standard charge.
Standard discharge capacity ≥ 3,000mAh
Rated discharge capacity
The rated discharge is the discharge capacity of the cell, which is measured with discharge current of 10A with 2.5V cut-off at 25℃ within 1hour after the rated charge.
Standard rated discharge capacity ≥ 2,950mAh
Initial internal impedance
Initial internal impedance measured at AC 1kHz after Standard charge. Initial internal impedance ≤ 15mΩ
Temperature Dependence of Discharge Capacity
Capacity comparison at each temperature, measured with discharge constant current 10A and 2.5V cut-off after the standard charge is
as follows.
| Discharge temperature | ||||
|---|---|---|---|---|
| -20℃ | -10℃ | 0°C | 25°C | 60℃ |
| 60% | 75% | 80% | 100% | 100% |
Note:
If charge temperature and discharge temperature is not the same, the interval for temperature change is 3 hours. Percentage as an index of the Standard discharge capacity (=2,950mAh) is 100%
Temperature Dependence of Charge Capacity
Capacity comparison at each temperature, measured with discharge constant current 10A and 2.5V cut-off after the standard charge is as follows.
| Charge temperature | Discharge temperature | ||||
|---|---|---|---|---|---|
| 0℃ | 5℃ | 25℃ | 50℃ | 25℃ | |
| Relative capacity | 80% | 90% | 100% | 95% | |
Note:
If charge temperature and discharge temperature is not the same, the interval for temperature change is 3 hours. Percentage as an index of the Standard discharge capacity (=2,950mAh) is 100%.
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