18650 3500mAh High Capacity Lithium-Ion Rechargeable Battery Cell 3.6V for Battery Pack Applications
High Capacity 18650 Lithium-Ion Rechargeable Battery Cell – 3500mAh, 3.6V
Designed for professional battery pack manufacturers and industrial energy applications, this high-capacity 18650 lithium-ion rechargeable cell delivers a typical capacity of 3500mAh and a nominal voltage of 3.6V.
With a compact cylindrical format, high energy density, and a wide operating temperature range, it is suitable for battery pack integration across various electronic and industrial applications.
The cell supports a discharge temperature range from -40°C to 60°C, making it suitable for applications that require reliable operation under low-temperature conditions. Its typical energy reaches 12.60Wh, providing a practical balance between capacity, size, and energy output.
For battery manufacturers and OEM customers, this 18650 cell offers a practical solution for developing customized rechargeable battery packs.
Key Product Highlights
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3500mAh typical capacity
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3360mAh rated capacity
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3.6V nominal voltage
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12.60Wh typical energy
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18650 standard cylindrical format
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Wide discharge temperature range: -40°C to 60°C
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Maximum charging current: 3360mA under specified conditions
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Maximum discharging current: 10080mA under specified conditions
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Compact dimensions: 18.55mm × 65.10mm maximum
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Suitable for professional battery pack integration
Important: This is an individual lithium-ion cell, not a complete battery pack. A suitable battery management system (BMS), protection design, and qualified charging system are required for battery pack applications.
Technical Specifications – 18650 Lithium-Ion Rechargeable Battery Cell
| Item | Specification |
|---|---|
| Battery Chemistry | Lithium-Ion |
| Cell Type | Cylindrical Cell |
| Cell Format | 18650 |
| Typical Capacity | 3500mAh |
| Rated Capacity | 3360mAh |
| Nominal Voltage | 3.6V |
| Typical Energy | 12.60Wh |
| Rated Energy | 12.10Wh |
| Standard Charging Method | CC-CV |
| Standard Charging Current | 1680mA |
| Maximum Charging Current | 3360mA |
| Charging Voltage | 4.20V |
| Standard Discharging Current | 672mA |
| Maximum Discharging Current | 10080mA |
| Standard Discharge End Voltage | 2.50V |
| AC Internal Impedance | ≤30mΩ |
| Maximum Diameter | 18.55mm |
| Maximum Height | 65.10mm |
| Maximum Weight | ≤49g |
| Charging Temperature | 0°C to 45°C |
| Discharging Temperature | -40°C to 60°C |
| Storage Humidity | 0–60% RH, non-condensing |
Electrical Performance
| Test Condition | Performance |
|---|---|
| 0.5C Discharge Capacity | ≥96% |
| 1C Discharge Capacity | ≥93% |
| 2C Discharge Capacity | ≥90% |
| 3C Discharge Capacity | ≥88% |
The discharge rate performance percentages are relative to the 0.2C reference capacity under the specified test conditions.
Cycle Performance Test
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Charge rate: 0.5C
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Discharge rate: 1C
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Discharge cut-off voltage: 2.75V
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Test temperature: 25°C
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Capacity retention: ≥80% of initial capacity at the 501st cycle under the specified test conditions.
This is a specification test result, not a general cycle-life guarantee under all application conditions.
Temperature Performance
| Discharge Temperature | Capacity Retention |
|---|---|
| 60°C | ≥95% |
| 45°C | ≥95% |
| 10°C | ≥88% |
| 0°C | ≥85% |
| -10°C | ≥75% |
| -20°C | ≥70% |
| -40°C | ≥65% |
Relative to the reference discharge capacity at 25°C under the specified test conditions.
Operating and Safety Notes
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Standard charging voltage: 4.20V.
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Standard discharge end voltage: 2.50V.
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Do not exceed the specified charging and discharging limits.
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The cell requires appropriate external protection and battery pack engineering.
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Charging and discharging current limits must be evaluated together with temperature and application conditions.
Related Products
Related Blogs
-
3500mAh typical capacity
-
3360mAh rated capacity
-
3.6V nominal voltage
-
12.60Wh typical energy
-
18650 standard cylindrical format
-
Wide discharge temperature range: -40°C to 60°C
-
Maximum charging current: 3360mA under specified conditions
-
Maximum discharging current: 10080mA under specified conditions
-
Compact dimensions: 18.55mm × 65.10mm maximum
-
Suitable for professional battery pack integration
1. High Capacity Performance
With a typical capacity of 3500mAh and typical energy of 12.60Wh, the cell provides a high-capacity solution in a compact 18650 cylindrical format.
2. Wide Discharge Temperature Range
Designed to support discharge operation from -40°C to 60°C, making it suitable for battery applications exposed to different environmental temperatures.
3. Compact Cylindrical Design
The standardized 18650 format allows convenient integration into compatible battery pack structures and multi-cell configurations.
4. High Discharge Capability
Supports a maximum discharge current of 3C (10080mA) at 25°C under specified test conditions. Actual operating current should be determined according to application requirements and thermal design.
5. Stable Electrical Characteristics
With a nominal voltage of 3.6V and AC internal impedance of no more than 30mΩ under the specified test method, the cell offers defined electrical characteristics for battery pack engineering.
6. Flexible Battery Pack Integration
Suitable for professional battery manufacturers developing customized lithium-ion battery packs for different equipment and applications.
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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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