3.72V 2800mAh Samsung-ICR18650-28A Battery
ICR18650-28A
The Samsung ICR18650 28A battery comes up with a nominal capacity of 2800mAh, the voltage of 3.75V .
The Samsung 28A is a popular lithium-ion cell. It is intended for use in high voltage 18650 battery packs. It can power a wide range of devices including an impact wrench, electric sprayer, or RF analyzer.
Samsung 18650 batteries are highly regarded for performance and safety
This is an absolutely excellent cell for anyone seeking high performance 18650 cells.
HIGHLIGHTS OF Samsung ICR18650 28A
Nominal capacity; 2800mAh
Minimum capacity: 2700mAh
Charging voltage: 4.3V +/-0.03V
Nominal voltage: 3.75V
Charging method: CC-CV (constant voltage with limited current)
Charging current:2800mA
Maximum discharge current:5600mA(ambient temperature 25 )
Discharge cut-off: 2.75V
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 : 18.40mm max
Diameter is defined as the largest data value measured on the “A” area of a cylindrical cell.
Height : 65.00mm max
Nominal Specification of Samsung-ICR18650-28A
| Item | Specification |
|---|---|
| Nominal Capacity | 2800mAh (0.2C, 2.75V discharge) |
| Minimum Capacity | 2700mAh(0.2C, 2.75V discharge) |
| Charging Voltage | 4.3 ±0.03 V |
| Nominal Voltage | 3.75V |
| Charging Method | CC-CV (constant voltage with limited current) |
| Standard Charging Current | Standard charge: 1400mA (Reconmendation) |
| Standard Charging time | Standard charge : 3hours |
| Max. Charge Current | 2800mA(ambient temperature 25 ) |
| Max. Discharge Current | 5600mA(ambient temperature 25 ) |
| Discharge Cut-off Voltage | 2.75V |
| Cell Weight | 48.0g max |
| Cell Dimension | Height : 65.00mm max |
| Diameter : 18.40mm max | |
| Operating Temperature(Ambient) | Charge : 0 to 45℃ |
| Discharge: -20 to 50℃ | |
| Storage Temperature | 1 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 with charge current 1400mA and constant voltage 4.3V at 25℃ for 3hours.
Standard Discharge Capacity
The standard discharge capacity is the initial discharge capacity of the cell, which is measured with discharge current of 560mA with 2.75V cut-off at 25℃ within 1hour after the standard charge.
Standard Discharge Capacity ≥ 2700mAh
Initial internal impedance
Initial internal impedance measured at AC 1kHz after rated charge.
Initial internal impedance ≤ 100mΩ
Temperature Dependence of Discharge Capacity
Capacity comparison at each temperature, measured with discharge constant current 560mA and 2.75V cut-off after the standard charge is as follows.
| Charge Temperature | Discharge temperature | |||
|---|---|---|---|---|
| 25℃ | 10℃ | 0℃ | 25℃ | 40℃ |
| 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 Standard discharge capacity (=1450mAh) 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℃ | 25℃ | 45℃ | 25℃ | |
| Relative Capacity | 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℃(=2700mAh) is 100%.
How to Custom 18650 Battery Pack
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.
WHAT WE CUSTOM
WHY CHOOSE US
Requirements
Design
Prototype
Wait for Samples
custom lithium battery packs collection