EVE INR18650/35V 3500mAh 3.7V Li-ion 18650 Battery Cell | 10.2A 3C High Discharge | 3.4A Max Charge | 4.2V Rechargeable Lithium Cell

EVE INR18650/35V 3500mAh 3.65V Li-ion 18650 Battery Cell

The EVE INR18650/35V is a high-capacity cylindrical lithium-ion battery cell manufactured by EVE Energy. It is designed for applications requiring a combination of high energy density, reliable performance, and good discharge capability.

According to the EVE specification, the cell has a nominal capacity of 3500mAh, minimum capacity of 3400mAh, and a nominal voltage of 3.65V. The cell supports a maximum continuous discharge of 10.2A (3C) and a maximum charge current of 3.4A (1C) under the manufacturer's specified conditions.

Technical Specifications

- Brand: EVE Energy

- Model: INR18650/35V

- Cell Type: Cylindrical Lithium-Ion

- Size: 18650

- Nominal Capacity: 3500mAh

- Minimum Capacity: 3400mAh

- Nominal Voltage: 3.65V

- Nominal Energy: Approximately 12.78Wh

- Maximum Charge Voltage: 4.20V

- Standard Charge Current: 0.68A (0.2C)

- Maximum Charge Current: 3.4A (1C)

- Standard Discharge Current: 0.68A (0.2C)

- Maximum Continuous Discharge: 10.2A (3C)

- Discharge Cut-off Voltage: 2.50V

- Charge/Discharge Voltage Range: 4.20V–2.50V

- Initial Internal Impedance: ≤30mΩ

- Maximum Weight: 50g

- Diameter: 18.35 ± 0.10mm

- Height: 65.10 ± 0.15mm

- Protection Circuit: None

- Cell Type: Flat-top cylindrical cell

Charging Specifications

The EVE INR18650/35V uses a CC-CV (Constant Current–Constant Voltage) charging method.

Standard Charging

- Current: 0.68A (0.2C)

- Voltage: 4.20 ± 0.05V

- CV termination current: 0.068A (68mA)

Standard charging is performed by charging at 0.68A until the cell reaches 4.20V, then maintaining 4.20V while the current gradually decreases to 68mA.

Maximum Charging

The newer EVE specification lists:

- Maximum charge current: 3.4A (1C)

- Maximum charge voltage: 4.20 ± 0.05V

- CV cut-off: 68mA

- Note: Maximum charging conditions are not intended for cycle-life testing.

For regular battery-pack use, 0.68A is the manufacturer's standard charge rate.

Discharge Specifications

The EVE INR18650/35V is specified for:

- Standard discharge: 0.68A (0.2C)

- Maximum continuous discharge: 10.2A (3C)

- Discharge cut-off: 2.50V

The manufacturer's discharge-rate test shows that the cell maintains at least 90% relative capacity at 3C (10.2A) compared with the 0.2C reference discharge under the specified test conditions.

Discharge Current Examples

Discharge Rate| Approx. Current

0.2C| 0.68A

0.5C| 1.70A

1C| 3.40A

2C| 6.80A

3C| 10.20A

Maximum continuous discharge: 10.2A (3C).

The 10.2A rating is specified with a 2.50V cut-off and is noted by EVE as not intended for cycle-life testing.

Capacity

The cell is specified as:

Nominal capacity: 3500mAh

Minimum capacity: 3400mAh

Capacity testing is performed using 0.68A (0.2C) discharge to 2.50V after the specified standard charging procedure.

Approximate nominal energy:

3.65V × 3.5Ah = 12.78Wh

Internal Resistance

The EVE specification lists an initial internal impedance of ≤30mΩ, measured using the manufacturer's specified test method.

Actual resistance can vary depending on temperature, state of charge, measurement equipment, and cell condition.

Temperature Specifications

Charging

- 0°C to 15°C: charging current ≤0.2C

- 15°C to 50°C: up to 1C under specified conditions

- Maximum charging conditions at higher rates are not intended for cycle-life testing.

Discharging

- -20°C to +60°C

- Pack cut-off temperature: 70°C

Charging lithium-ion cells below 0°C should be avoided.

Dimensions & Weight

- Diameter: 18.35 ± 0.10mm

- Height: 65.10 ± 0.15mm

- Maximum Weight: 50g

Applications

The EVE INR18650/35V is suitable for professionally designed lithium-ion battery packs such as:

- E-bike battery packs

- Electric mobility applications

- Portable power systems

- Power tools

- DIY lithium-ion battery packs

- Energy-storage systems

- Backup power systems

- Industrial battery packs

- Other applications requiring high-capacity 18650 cells

Important Safety Information

This is a bare lithium-ion cell and does not contain an integrated protection circuit.

For battery-pack applications, use a suitable BMS designed for the required series configuration and charge/discharge current.

Do not:

- Charge above 4.20V

- Discharge below 2.50V

- Short-circuit the cell

- Puncture, crush, or mechanically damage the cell

- Expose the cell to excessive heat

- Charge below 0°C

- Use an unsuitable charger

Always use appropriate insulation, cell holders/welding methods, BMS protection, and pack-level safety systems when assembling battery packs.

Key Specifications

Model: EVE INR18650/35V

Capacity: 3500mAh nominal / 3400mAh minimum

Nominal Voltage: 3.65V

Charge Voltage: 4.20V

Standard Charge: 0.68A (0.2C)

Maximum Charge: 3.4A (1C)

Standard Discharge: 0.68A (0.2C)

Maximum Continuous Discharge: 10.2A (3C)

Discharge Cut-off: 2.50V

Internal Impedance: ≤30mΩ

Size: 18650

Diameter: 18.35mm

Height: 65.10mm

Weight: ≤50g

Protection: None

Charge Temperature: 0°C to 50°C

Discharge Temperature: -20°C to 60°C

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