18650 4000mAh

FEB

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Overview

Manufacturer

FEB

Cell Model

18650 4000mAh

Cell Type

Li-ion

Form Factor

Cylindrical 18650

Country of Origin

China

Release Year

2025

Thermal

Minimum Charge Temperature

-

Maximum Charge Temperature

-

Maximum Discharge Temperature

-

Minimum Discharge Temperature

-

Mechanical

Mass

48 g

Volume

17.5 cm³

Height

65.2 mm

Diameter

18.5 mm

Chemistry

Positive Electrode Material

Ni-based

Negative Electrode Material

-

Electrical

Energy

Volumetric Energy Density

823 Wh/L

Gravimetric Energy Density

300 Wh/kg

Nominal Energy Capacity

14.4 Wh

Nominal Charge Capacity

4 Ah

Power

Volumetric Power Density

1646 W/L

Gravimetric Power Density

600 W/kg

Current

Max Continuous Charge

4 A

Max Continuous Charge (C-rate)

1 C

Max Continuous Discharge

8 A

Max Continuous Discharge (C-rate)

2 C

Voltage

Nominal Voltage

3.6 V

Max Voltage

4.2 V

Min Voltage

2.5 V

This cell is coming to Simulate soon - want to access cell insights now?

Speak with our team to access this advanced simulation output

Fixed Rate

0.5 C1 C3 C

Load Type

Operation

Initial SOC [%]

Initial Cell Temperature [°C]

Heat Transfer Coefficient [W/m²K]

Want to edit the inputs and run your own Drive Cycles?

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18650 4000mAh

FEB

Coming Soon

We tear down cells and accurately measure every physical parameter

Book a Call

Overview

Manufacturer

FEB

Cell Model

18650 4000mAh

Cell Type

Li-ion

Form Factor

Cylindrical 18650

Country of Origin

China

Release Year

2025

Thermal

Minimum Charge Temperature

-

Maximum Charge Temperature

-

Maximum Discharge Temperature

-

Minimum Discharge Temperature

-

Mechanical

Mass

48 g

Volume

17.5 cm³

Height

65.2 mm

Diameter

18.5 mm

Chemistry

Positive Electrode Material

Ni-based

Negative Electrode Material

-

Electrical

Energy

Volumetric Energy Density

823 Wh/L

Gravimetric Energy Density

300 Wh/kg

Nominal Energy Capacity

14.4 Wh

Nominal Charge Capacity

4 Ah

Power

Volumetric Power Density

1646 W/L

Gravimetric Power Density

600 W/kg

Current

Max Continuous Charge

4 A

Max Continuous Charge (C-rate)

1 C

Max Continuous Discharge

8 A

Max Continuous Discharge (C-rate)

2 C

Voltage

Nominal Voltage

3.6 V

Max Voltage

4.2 V

Min Voltage

2.5 V

This cell is coming to Simulate soon - want to access cell insights now?

Speak with our team to access this advanced simulation output

Fixed Rate

0.5 C1 C3 C

Load Type

Operation

Initial SOC [%]

Initial Cell Temperature [°C]

Heat Transfer Coefficient [W/m²K]

Want to edit the inputs and run your own Drive Cycles?