Samsung INR18650-35E 3.6V 3400mAh Lithium-Ion Rechargeable Cell

The Samsung INR18650-35E is a high-capacity, cylindrical 18650 lithium-ion cell from Samsung SDI — one of the world's leading battery manufacturers. Rated at 3400mAh with a nominal voltage of 3.6V, the 35E is engineered for applications demanding maximum runtime with moderate discharge rates. Its NMC (Nickel Manganese Cobalt) chemistry delivers an outstanding balance of energy density, cycle life, and thermal stability.

Key Specifications

• Model: INR18650-35E
• Chemistry: Lithium-Ion NMC (INR)
• Nominal Voltage: 3.6V
• Capacity: 3400mAh (typical)
• Maximum Continuous Discharge: 8A (2C)
• Charge Voltage: 4.2V (max)
• Cut-off Voltage: 2.65V
• Cell Size: 18650 (18mm × 65mm)
• Operating Temperature: -20°C to +60°C (discharge); 0°C to +45°C (charge)
• Cycle Life: 300+ cycles to 80% capacity
• Weight: ~48g
• Flat Top (No Button Top)

Typical Applications

• High-capacity power banks and portable chargers
• Laptop and notebook battery packs
• Electric bicycles (e-bikes) and scooters
• Portable lighting and flashlights
• Medical and scientific instruments
• DIY battery pack builds and energy storage systems
• Wireless speakers and audio equipment

Why the Samsung 35E?

When runtime matters more than peak power, the Samsung INR18650-35E is the cell of choice. Its 3400mAh capacity is among the highest available in the standard 18650 form factor, making it ideal for multi-cell packs where energy density directly translates to longer use between charges. Backed by Samsung SDI's rigorous quality control, each cell meets strict safety and consistency standards.

Important: This is a bare, unprotected lithium-ion cell. Always use with a suitable Battery Management System (BMS) or protection circuit. Do not short-circuit, overcharge, over-discharge, or expose to temperatures outside the specified range. Handle and dispose of in accordance with local regulations.