3.65V-3200mAh Samsung-INR18650-32E Battery

INR18650-32E

The Samsung INR18650 32E battery comes up with a nominal capacity of 2850mAh, the voltage of 3.65V .

The Samsung 32E is a popular lithium-ion cell. It is intended for use in high capacity 18650 battery packs. It can power a wide range of devices including an infrared thermometer, portable bill counter, or smart light-up clothing

This original lithium-ion Samsung INR18650-32E Flat Top battery has a voltage of 3.7 V and a capacity of 3000 mAh. This provides a power capacity of approximately 11.5 Wh. This 18650 battery has flat ends and is therefore slightly shorter than a conventional 18650 battery with Button Top. The battery has a continuous discharge of 6.4 A.

Please note: Flat Top batteries are not secured. It is therefore important to use these batteries in a safe manner and to be aware of the correct procedure with regard to discharging, charging, placing and using these batteries. Do not charge the battery above 4.2 V and do not discharge it further than 2.5 V.

This is an absolutely excellent cell for anyone seeking high performance 18650 cells.

HIGHLIGHTS OF Samsung INR18650 32E

Typical Capacity: 3,200mAh (0.2C, 2.50V discharge)
Minimum Capacity: 3,100mAh (0.2C, 2.50V discharge)
Charging Voltage: 4.2V
Nominal Voltage: 3.65V (0.2C discharge)
Charging Method: CC-CV (constant voltage with limited current)
Charging Current Standard charge: 960mA
Charging Time Standard charge: 5hours
Max. Charge Current: 3,200mA (not for cycle life)
Max. Discharge Current: 6,400mA (for continuous discharge), 9,600mA (not for continuous discharge)
Discharge Cut-off Voltage: 2.50V
Cycle life: 500 cycles to 70% with 3200mA discharge, 300 cycles with 6200mA discharge.
Cell Weight: 50g max
Cell Dimension: Height : 65.2mm max, Diameter(max.) : Ø 18.50 mm
Operating Temperature (Cell Surface Temperature): Charge : 0 to 45°C, Discharge : -20 to 60°C
Storage Temperature: 1 year : -20~25°C, 3 months : -20~45°C, 1 month : -20~60°C

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 : 18.50 mm(MAX)

Diameter is defined as the largest data value measured on the “A” area of a cylindrical cell.

Height :65.2mm(MAX)

Samsung INR18650-32E structure

Nominal Specification of Samsung-18650-32E

Item Specification
Typical Capacity 3,200mAh(0.2C,2.50V discharge)
Minimum Capacity 3,100mAh (0.2C,2.50V discharge)
Charging Voltage 4.2V
Nominal Voltage 3.65V(0.2C discharge)
Charging Method CC-CV(constant voltage with limited current)
Charging Current Standard charge: 960mA
Charging Time Standard charge: 5hours
Max. Charge Current 3,200mA (not for cycle life)
Max. Discharge Current 6,400mA (for continuous discharge)
9,600mA (not for continuous discharge)
Discharge Cut-off Voltage 2.50V
Cell Weight 50g max
Cell Dimension Height:65.2mm max
Diameter(max.): 18.50 mm
Operating Temperature(Cell Surface Temperature) Charge:0 to 45℃
Discharge:-20 to 60℃
Storage Temperature 1 year : -20~25°C
3 months : -20~45°C
1 month : -20~60°C

Characteristics

Standard Charge

This “Standard Charge” means charging the cell with charge current of 960mA and constant voltage 4.2V at 25°C, 0.02C cutoff.

Standard Discharge Capacity

The standard discharge capacity is the initial discharge capacity of the cell, which is measured with discharge current of 640mA with 2.50V cut-off at 25°C within 1 hour after the Standard charge.

Standard Discharge Capacity ≥ 3,100mAh

Rated Discharge Capacity

The rated discharge capacity is the initial discharge capacity of the cell, which is measured with discharge current of 3,200mA with 2.50V cut-off at 25°C within 1 hour after the Standard charge.

Rated Discharge Capacity ≥ 3,007mAh (97% of 3,100mAh)

Initial internal impedance

Initial internal impedance measured at AC 1kHz after Standard charge. Initial internal impedance ≤ 35mΩ

Temperature Dependence of Discharge Capacity

Discharge capacity comparison at each temperature, measured with discharge constant current 3,200mA and 2.50V cut-off with follow temperature after the Standard charging at 25°C.

Charge Temperature Discharge temperature
25°C -10°C 25°C 40°C
Relative Capacity 60% 97% 97%

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 (=3,100mAh) is 100%

Temperature Dependence of Charge Capacity

Capacity comparison at each temperature, measured with discharge constant current 550mA and 2.50V cut-off at 25°C after the Standard charge is as follow temperature.

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 Standard discharge capacity (=3,100mAh) 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

  • Custom Voltage Range: 3V ~ 120V
  • Custom Discharge Current: 0.2C ~ 120C (0.01A-1000A)

  • Custom BMS: Size, Features, Communication, Cut-off, Temperature
  • Custom Battery Size: Starting 0.5mm Thickness
  • Battery Temperature from -40°C–85°C
  • Custom Connector: JST/Molex/Hirose/Anderson/TE/Amphenol  Etc

WHY CHOOSE US

  • Custom 18650 Battery Pack, MOQ 100 pcs
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