18650 2000mAh 3.7V Rechargeable Lithium Ion Battery Cell
The 18650 2000mAh rechargeable lithium-ion battery cell is designed for battery pack assembly and a variety of electronic power applications. With a nominal voltage of 3.7V and a rated capacity of 2000mAh, it provides 7.4Wh of energy in a compact cylindrical format.
The cell features a standard charging voltage of 4.2V, a recommended charging current of 400mA, and a maximum charging current of 1000mA. Its maximum discharge current is 1000mA, making it suitable for applications that operate within the specified electrical and temperature limits.
With a diameter of 18.2mm and a flat-top height of 65.0mm, this 18650 cell can be considered for customized battery pack configurations. OEM and ODM requirements can be discussed according to the customer’s application, electrical requirements, and project specifications.
For battery manufacturers, distributors, and system integrators, this cell offers a practical option for rechargeable lithium-ion battery sourcing.
Product Specifications
| Item | Specification |
|---|---|
| Product Type | Rechargeable Lithium-Ion Battery Cell |
| Cell Format | 18650 Cylindrical |
| Nominal Voltage | 3.7V |
| Nominal Capacity | 2000mAh |
| Rated Energy | 7.4Wh |
| Standard Charging Voltage | 4.2V |
| Recommended Charging Current | 400mA |
| Maximum Charging Current | 1000mA |
| Maximum Discharge Current | 1000mA |
| Internal Impedance | ≤30mΩ |
| Discharge Cut-off Voltage | 2.75V* |
| Weight | Approx. 43g |
| Diameter | 18.2 ± 0.3mm |
| Flat-top Height | 65.0 ± 0.5mm |
| Button-top Height | 67.3 ± 0.5mm |
| Charging Temperature | 0°C to 45°C |
| Discharging Temperature | -10°C to 60°C |
| Cycle Life | ≥300 cycles* |
Storage Specifications
| Item | Specification |
|---|---|
| Storage Temperature | -10°C to 45°C |
| Storage Humidity | ≤85% RH |
| Storage Voltage | 3.94V to 4.05V |
Temperature Performance Reference
| Temperature | Capacity Reference |
|---|---|
| 55°C | ≥90% |
| 0°C | ≥80% |
| -10°C | ≥60% |
*Important: The specification contains both 2.75V and 3.0V discharge-end references in different sections. The cycle-life test also specifies its own test conditions. Confirm the applicable cut-off voltage and test method with the manufacturer before publishing these as definitive product claims.
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Related Blogs
1. 2000mAh Rated Capacity
Provides a nominal capacity of 2000mAh for battery pack design and compatible electronic applications.
2. 3.7V Nominal Voltage
A standard nominal voltage for rechargeable lithium-ion battery systems.
3. Compact 18650 Format
Cylindrical cell dimensions support integration into compatible battery pack configurations.
4. 7.4Wh Rated Energy
Provides 7.4Wh of rated energy based on the nominal voltage and capacity.
5. Defined Charging Parameters
Supports a standard charging voltage of 4.2V, with a recommended charging current of 400mA.
6. 1000mA Maximum Discharge Current
Offers a specified maximum discharge current of 1000mA when operated within the manufacturer’s requirements.
7. Controlled Internal Impedance
The specified internal impedance is ≤30mΩ in the charged state.
8. Defined Operating Temperature Range
Charging temperature: 0°C to 45°C. Discharging temperature: -10°C to 60°C.
9. Cycle Life Specification
The manufacturer’s specification states ≥300 cycles under its defined 1C charge/discharge test method to 80% capacity.
10. OEM/ODM Project Support
Technical requirements and battery pack configurations can be discussed for suitable B2B projects.
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What industries use YiFang products?
Our products are widely used in e-cigarettes, UAVs, balance scooters, electric bikes, electronic equipment, toys, flashlights, and other commercial and industrial applications.
What industries use YiFang products?
Our products are widely used in e-cigarettes, UAVs, balance scooters, electric bikes, electronic equipment, toys, flashlights, and other commercial and industrial applications.
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