Nitecore 21700 Li-ion Battery 5500mAh 20A 3.6V Button Top

The Nitecore NL2155HPI is a high-performance 21700 lithium-ion battery designed for demanding applications. With a capacity of 5500mAh and a maximum continuous discharge current of 20A, it delivers reliable power for high-drain devices such as flashlights and power tools. The integrated protection circuit ensures safe operation against overcharge, over-discharge, and short circuits.

Advantages

High capacity and high discharge rate make this battery ideal for devices that require sustained power. The button top design ensures compatibility with a wide range of devices. With over 500 charge cycles, it offers long-term value.

Suitable for

• High-drain flashlights
• Power tools
• Portable electronics
• DIY projects

Key specifications

• Battery Type: Lithium-ion (Li-ion)
• Battery Size: 21700
• Capacity: 5500 mAh
• Nominal Voltage: 3.6 V
• Maximum Continuous Discharge Current: 20 A
• Energy: 19.8 Wh
• Rechargeable: Yes
• Protection Circuit: Integrated (Overcharge, Over-discharge, Short-circuit)
• Positive Terminal: Button Top
• Cycle Life: >500 cycles
• Recommended Charging Current: 2A
• Maximum Charging Current: 5A
• Operating Temperature (Charging): 0°C to 45°C
• Operating Temperature (Discharging): -20°C to 60°C
• Storage Temperature: -20°C to 60°C
• Certifications: CE, RoHS, FCC

Recommendations

For optimal performance, use a compatible charger with a charging current of 2A. Store in a cool, dry place away from direct sunlight.