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

   

Samsung INR21700-30T 3000mAh

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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We have the unique ability to develop custom 18650 battery pack to fit your needs. Our expert team of chemists, engineers, and manufacturers who use proven chemistry and production methods that will get from spec to production fast. Slim, flexible, more powerful.

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