High Discharge Performance: Supports up to 6.6A (3C) continuous discharge for power-demanding applications.
Long Cycle Life: 2000+ cycles with ≥80% capacity retention.
Ultra-Lightweight: Compact 18650 form factor ideal for portable devices.
Safe LiFePo4 Chemistry: Intrinsic thermal stability for enhanced safety.
Fast Charging: 0.5C (1100mA) rated charge capability.

Specifications

Parameter	Value
Model	IFR18650N22A6.6
Nominal Voltage	3.2V
Nominal Capacity	2200mAh
Energy	7.4Wh
Internal Resistance	≤30mΩ
Max Continuous Charge Current	1100mA (0.5C)
Max Continuous Discharge Current	6600mA (3C)
Charging Voltage	3.65V
Discharge Cut-off Voltage	2.0V
Weight	49g
Dimensions (Diameter × Height)	18.65mm × 66.5mm

Cycle Life

Operating Temperature Range

Mode	Temperature Range	Max Current (Charge/Discharge)
Charging	0°C to 45°C	1100mA (0.5C)
Discharging	-20°C to 60°C	6600mA (3C)

Discharge Curve

Certifications

Key Features

Applications

Portable Electronics: LED flashlights, handheld fans, and digital thermometers.
Medical Devices: Portable nebulizers, blood pressure monitors.
IoT & Wearables: Smart sensors, fitness trackers, and wireless earbuds.
Low-Power Tools: Miniature cordless glue guns and hobbyist tools.
Emergency Backup: Keychain power banks and emergency locator beacons.

Usage Warnings & Precautions

⚠️ Do NOT charge above 45°C or discharge below -20°C to avoid permanent damage.
Use only LiFePo4-compatible chargers with 3.65V voltage limits.
Prevent terminal short circuits, physical impacts, or exposure to liquids.
Ensure proper polarity alignment during installation.

Storage Guidelines

Warranty & Disclaimer

Warranty: 24-month limited warranty against manufacturing defects.
Disclaimer: Warranty void if misused (e.g., overcurrent, extreme temperatures). Dispose per local regulations.

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