EVE INR18650/26V 2550mAh 3.6V Li-ion 18650 Battery Cell | 3C High Discharge | 7.5A Max Discharge | 2.5A Max Charge | 4.2V Rechargeable Lithium Cell in pakistan

EVE INR18650/26V 2550mAh 3.6V Li-ion 18650 Battery Cell

The EVE INR18650/26V is a high-quality cylindrical lithium-ion battery cell designed for applications requiring a combination of good energy density, reliable cycle performance, and high discharge capability.

It has a typical capacity of 2550mAh, a minimum capacity of 2500mAh, and a nominal voltage of 3.6V. The cell has a nominal energy of approximately 9.18Wh. According to the EVE datasheet, the cell supports charging at 0.5C and discharge rates from 0.2C up to 3C under the specified test conditions.

Technical Specifications

Brand: EVE Energy

Model: INR18650/26V

Cell Type: Lithium-Ion / INR

Size: 18650

Typical Capacity: 2550mAh

Minimum Capacity: 2500mAh

Nominal Voltage: 3.6V

Nominal Energy: 9.18Wh

Maximum Charge Voltage: 4.20V

Standard Charging Current: 0.5C = approximately 1.275A

Charge Cut-off Current: 0.02C = approximately 51mA

Maximum Charging Current: Up to 1C according to the referenced EVE specification

Discharge Test Range: 0.2C–3C

3C Discharge: approximately 7.65A based on 2550mAh nominal capacity

Discharge Cut-off: 2.5V for capacity specification; cycle-life test uses 3.0V

Internal Impedance: 25 ± 3mΩ

Average Weight: 45 ± 1g

Diameter: approximately 18.3mm

Height: approximately 65.0mm

Charge Temperature: 0°C to +45°C

Discharge Temperature: -20°C to +60°C

Storage Temperature: -20°C to +45°C

Cell Format: Flat-top cylindrical cell

BMS: Not included

The official EVE documentation specifies a CC-CV charging method at 0.5C, 4.20V, with charging terminated when the current falls to 0.02C.

Charging Specifications

For normal charging, use a CC-CV lithium-ion charging profile:

Constant Current (CC):

Recommended standard charge: 1.275A (0.5C)

Constant Voltage (CV):

Charge voltage: 4.20V

Charging should continue until the current falls to approximately 51mA (0.02C).

The datasheet's standard charging procedure is specified at 25°C.

Discharge Specifications

The EVE datasheet provides discharge characteristics from 0.2C to 3C at 25°C.

Temperature Performance

According to the EVE datasheet:

Charging: 0°C to +45°C

Discharging: -20°C to +60°C

Storage: -20°C to +45°C

Battery performance and available capacity can decrease at low temperatures, so operation within the recommended temperature range is important.

Cycle Life

The EVE datasheet's cycle-life test uses:

Charge: CC-CV, 0.5C, 4.20V, 0.02C cut-off

Rest: 10 minutes

Discharge: 1C

Discharge cut-off: 3.0V

Temperature: 25°C

The published cycle-life curve shows gradual capacity reduction over the test period.

Dimensions & Physical Specifications

Diameter: 18.3 ± 0.1mm

Height: 65.0 ± 0.1mm

Weight: approximately 45 ± 1g

These specifications are from the EVE Energy datasheet.

Applications

The EVE INR18650/26V can be used for battery packs and equipment such as:

Electric bicycles and scooters

Portable power stations

Power tools

Robotics

AGV systems

DIY lithium battery packs

Backup power systems

Portable electronics

Energy-storage applications

Other 18650 lithium-ion battery applications

Important Safety Information

This is a bare lithium-ion cell and does not contain built-in protection electronics. It should be used with an appropriate BMS/protection circuit when building a battery pack.

Do not short-circuit, overcharge, over-discharge, puncture, crush, or expose the cell to excessive heat. Use a charger specifically designed for lithium-ion cells and follow the manufacturer's voltage and current specifications.

Product: EVE INR18650/26V

Capacity: 2550mAh typical / 2500mAh minimum

Voltage: 3.6V nominal

Charge Voltage: 4.20V

Standard Charge: 0.5C / 1.275A

Discharge: Up to 3C under specified datasheet conditions

Approx. 3C Current: 7.65A

Cell Size: 18650

BMS: Not included

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