3.7V-2600mAh-Samsung-ICR18650-26H
Samsung ICR18650-26H
The Sansung ICR-18650-26H battery comes up with a nominal capacity of 2600mAh, the voltage of 3.7V. This is an absolutely excellent cell for anyone seeking high performance 18650 cells.
HIGHLIGHTS OF ICR18650-26F
Nominal Capacity: 2600mAh (0.2C, 2.75V discharge)
Minimum Capacity: 2550mAh(0.2C, 2.75V discharge)
Charging Voltage: 4.2 ±0.05 V
Nominal Voltage: 3.7V
Charging Method: CC-CV (constant voltage with limited current)
Charging Current: Standard charge: 1300mA, Rapid charge : 2600mA
Charging Time: Standard charge : 3hours, Rapid charge : 2.5hours
Max. Charge Current: 2600mA (ambient temperature 25°C)
Max. Discharge Current: 5200mA (ambient temperature 25°C)
Discharge Cut-off Voltage: 2.75V
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.18.4mm
Diameter is defined as the largest data value measured on the “A” area of a cylindrical cell.
Height : max.65.00mm
Weight: max.47.0g
Nominal Specification of ICR18650-26H
| Item | Specification |
|---|---|
| Nominal Capacity | 2600mAh (0.2C, 2.75V discharge) |
| Minimum Capacity | 2550mAh(0.2C, 2.75V discharge) |
| Charging Voltage | 4.20±0.05 V |
| Nominal Voltage | 3.63V |
| Resistance | 7~16mΩ |
| Resistance(After Trip) | Max. 28mΩ |
| Charging Method | CC-cV(constant voltage with limited current) |
| Charging Current | Standard charge: 1300mA |
| Rapid charge : 2600mA | |
| Charging Time | Standard charge : 3hours |
| Rapid charge : 2.5hours | |
| Max. Charge Current | 2600mA(ambient temperature 25℃) |
| Max. Discharge Current | 5200mA(ambient temperature 25℃) |
| Discharge Cut-off Voltage | 2.75V |
| Cell Weight (max. (g)) | 47.0g max |
| Cell Dimension | Diameter : 18.40mm max |
| Height : 65.00mm max | |
| Operating Temperature(Cell Surface Temperature) | Charge:0 to 45°C |
| Discharge:-20 to 60°℃ | |
| Storage Temperature | 1 year : -20~25°C |
| 3 months : -20~45°C | |
| 1 month : -20~60°C |
Note
1): If the cell is kept as ex-factory status (50% of charge), the capacity recovery rate is more than 80%.
Characteristics of ICR18650 26F
1 Standard Charge
This “Standard Charge” means charging the cell with charge current 1300mA and constant voltage 4.2V at 25℃ for 3hours.
2 Standard Discharge Capacity
The standard discharge capacity is the initial discharge capacity of the cell, which is measured with discharge current of 520mA with 2.75V cut-off at 25℃ within 1hour after the standard charge.
Standard Discharge Capacity ≥ 2550mAh
3 Initial internal impedance
Initial internal impedance measured at AC 1kHz after rated charge.
Initial internal impedance ≤ 100mΩ
4 Temperature Dependence of Discharge Capacity
Capacity comparison at each temperature, measured with discharge constant current 520mA and 2.75V cut-off after the standard charge is as follows.
| Charge Temperature | Discharge temperature | |||
|---|---|---|---|---|
| 25°C | -10°C | 0°C | 25°C | 40°C |
| Relative Capacity | 50% | 80% | 100% | 80% |
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 capacity at 25℃(=2550mAh) is 100%.
5. Temperature Dependence of Charge Capacity
Capacity comparison at each temperature, measured with discharge constant current 520mA and 2.75V cut-off after the standard charge is as follows.
| Charge temperature | Discharge temperature | |||
|---|---|---|---|---|
| 0°C | 25°C | 45°C | 25°C | |
| Relative Capacity | 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 capacity at 25℃(=2550mAh) is 100%.
7.Discharge Rate Capabilities
Discharge capacity is measured with the various currents in under table and 2.75V cut-off after the standard charge.
| Charge Condition | ||||
|---|---|---|---|---|
| Current | 0.2C(520mA) | 0.5C(1300mA) | 1.0C(2600mA) | 2.0C(5200mA) |
| Cut-off | 7h or 0.05C | 2.5h or 0.05C | 2.5h or 0.05C | 2.5h or 0.05C |
| Relative Capacity | 100% | 95% | 90% | 80% |
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