GEMBIRD Battery 3.7V Li-Ion 18650 2600mAh

This GEMBIRD battery is a high-quality 18650 Lithium-Ion cell with a nominal voltage of 3.7V and a capacity of 2600mAh. It is designed for reliable power delivery in a wide range of portable electronic devices, including flashlights, power banks, and DIY battery packs. The battery features a flat top terminal and is unprotected, making it suitable for applications where a protection circuit is integrated into the device.

Advantages

High energy density and long cycle life of up to 500 cycles to 80% capacity. Low self-discharge rate of less than 5% per month ensures readiness when needed. Certified with CE and RoHS for safety and environmental compliance.

Suitable for

• Flashlights and headlamps
• Power banks
• DIY battery packs
• Portable electronics requiring 18650 cells

Key specifications

• Battery Type: Lithium-ion (Li-Ion)
• Form Factor: 18650
• Nominal Voltage: 3.7 V
• Capacity: 2600 mAh
• Energy: 9.62 Wh
• Rechargeable: Yes
• Terminal Type: Flat Top
• Protection Circuit: Unprotected
• Max Continuous Discharge Current: 5.2 A
• Max Pulse Discharge Current: 10 A
• Standard Charge Current: 1.3 A
• Cycle Life: Up to 500 cycles (to 80% capacity)
• Operating Temperature (Discharge): -20°C to 60°C
• Operating Temperature (Charge): 0°C to 45°C
• Storage Temperature: -20°C to 25°C (recommended)
• Self-Discharge Rate: <5% per month
• Internal Resistance: < 80 mΩ
• Chemistry: Lithium Cobalt Oxide (LiCoO2)
• Certifications: CE, RoHS

Recommendations

Always use a compatible charger designed for Li-Ion 18650 cells. Do not short-circuit, disassemble, or expose to high temperatures. Recycle properly at end of life.