IFR14400N5A1.5 LiFePo4 Battery 3.2V 500mAh 1.5A Discharge 2000+ Cycles
Product Name
IFR14400N5A1.5 LiFePo4 Battery Cell
Advantages
- Compact High-Current Output: Supports up to 1.5A (3C) continuous discharge for lightweight applications.
- Long Cycle Life: 2000+ cycles with ≥80% capacity retention.
- Ultra-Compact Design: Minimal dimensions (14.1mm × 43mm) for space-constrained devices.
- Safe LiFePo4 Chemistry: Stable performance with low thermal runaway risk.
- Balanced Charging: 0.5C (250mA) rated charge capability.
Specifications
| Parameter | Value |
| Model | IFR14400N5A1.5 |
| Nominal Voltage | 3.2V |
| Nominal Capacity | 500mAh |
| Energy | 1.6Wh |
| Internal Resistance | ≤70mΩ |
| Max Continuous Charge Current | 250mA (0.5C) |
| Max Continuous Discharge Current | 1500mA (3C) |
| Charging Voltage | 3.65V |
| Discharge Cut-off Voltage | 2.0V |
| Weight | 15.6g |
| Dimensions (Diameter × Height) | 14.1mm × 43mm |
Cycle Life
| Cycles | Capacity Retention | Test Conditions |
| 1000 cycles | ≥90% | 0.5C Charge/Discharge, 25°C |
| 2000 cycles | ≥80% | 0.5C Charge/Discharge, 25°C |
Operating Temperature Range
| Mode | Temperature Range | Max Current (Charge/Discharge) |
| Charging | 0°C to 45°C | 250mA (0.5C) |
| Discharging | -20°C to 60°C | 1500mA (3C) |
Discharge Curve

Certifications
- Complies with UN38.3, CE, RoHS, and IEC 62133 safety standards.
Key Features
- Ultra-Slim Design: Compact 14430 form factor (14.1mm × 43mm) for miniature devices.
- Low Self-Discharge: <3% monthly loss for reliable long-term storage.
- Universal Compatibility: Fits standard 14430/AAA-sized battery compartments.
Applications
- Miniature Electronics: Laser pointers, LED keychains, and digital stylus pens.
- Medical Devices: Hearing aids, wearable health patches, and compact diagnostic tools.
- IoT Sensors: Wireless environmental sensors and smart home automation devices.
- Toys & Hobbies: Mini drones, RC car remotes, and electronic pet tags.
- Emergency Tools: Compact backup power for USB-powered gadgets and safety alarms.

Usage Warnings & Precautions
- ⚠️ Do NOT charge above 45°C or discharge below -20°C to prevent irreversible damage.
- Use only LiFePo4-compatible chargers with 3.65V voltage limits.
- Avoid terminal short circuits, physical compression, or exposure to liquids.
- Ensure proper polarity alignment during installation.
Storage Guidelines
- Optimal Storage SOC: 30%-50% (2.8V-3.3V per cell).
- Storage Temperature: -10°C to 35°C (dry, non-condensing environment).
- Recharge Interval: Every 6 months for batteries stored long-term.
Warranty & Disclaimer
- Warranty: 24-month limited warranty against manufacturing defects.
- Disclaimer: Warranty void if misused (e.g., overcurrent, extreme temperatures). Dispose per local regulations.