Samsung INR18650-35E 18650 Li-ion Battery, 3.6V 8A

Samsung INR18650-35E Rechargeable 18650 Cell

Choose the Samsung INR18650-35E for projects that need a compact rechargeable lithium-ion cell with clearly defined operating limits. This flat-top 18650 cell has a nominal voltage of 3.6V and supports up to 8A continuous discharge. Check your device’s voltage, current, terminal and size requirements before ordering.

Commonly marketed as a 3500mAh cell, the 35E is specified in the supplied Samsung SDI datasheet with a minimum standard discharge capacity of 3350mAh. Actual capacity depends on discharge current, temperature and charging conditions.

Technical specifications

• Manufacturer / model: Samsung SDI / INR18650-35E
• Cell type: Rechargeable lithium-ion, cylindrical 18650
• Terminal: Flat top
• Nominal voltage: 3.60V
• Minimum standard discharge capacity: 3350mAh,
  tested at 680mA to a 2.65V cut-off at 23°C after standard charging
• Minimum rated discharge capacity: 3250mAh,
  tested at 3400mA to a 2.65V cut-off at 23°C after standard charging
• Maximum continuous discharge current: 8A (8000mA)
• Charging method: CC-CV, 4.2V charging voltage
• Standard charging current: 1.7A; approximately 4 hours under standard test conditions
• Cycle-life charging current: 1.02A
• Maximum charging current: 2A, not the cycle-life charging condition
• Discharge cut-off voltage: 2.65V
• Maximum dimensions: 18.55mm diameter × 65.25mm height
• Maximum cell weight: 50g
• Operating temperature, cell surface: Charging 0°C to 45°C; discharging -10°C to 60°C
• Package contents: 1 battery cell

Compatibility and handling

Use only with equipment designed for this cell’s specifications and a compatible 4.2V CC-CV lithium-ion charger. Do not exceed 8A continuous discharge, charge above 4.2V or discharge below 2.65V. The datasheet’s 13A figure is explicitly not a continuous-discharge rating and should not be used to size a continuous load.

Do not short-circuit, reverse polarity, expose to heat or use a damaged cell. Keep loose cells in an insulating protective case, away from metal objects. Do not mix old and new cells or charge unattended. Battery-pack assembly requires appropriate protection circuitry and knowledge of lithium-ion cell handling.

Electrical and dimensional specifications are based on the supplied Samsung SDI INR18650-35E specification, Version 1.1. Capacity figures apply to the stated test conditions, not a guaranteed runtime in every device.