3.2V IFR26650 4000mAh Cylindrical LiFePO4 Battery Cell
- Model: IFR26650-4000
- Nominal Voltage: 3.2V
- Capacity: 4000mAh
- Dimension: Φ26.45 × 65.7mm
- Chemistry: LiFePO₄ (Lithium Iron Phosphate)
- Features: High capacity, low internal resistance, 12A continuous discharge capability, excellent safety performance, wide operating temperature range, and long cycle life
Product Specification
| Parameter | Specification |
|---|---|
| Battery Chemistry | LiFePO4 (Lithium Iron Phosphate) |
| Nominal Capacity | 4000mAh |
| Minimum Capacity | 3950mAh |
| Nominal Voltage | 3.2V |
| AC Internal Resistance | ≤20mΩ AC 1KHz measurement at 25℃±2℃ |
| Maximum Charge Current | 4.0A (25℃) |
| Fast Discharge Current | 4.0A Maximum recommended current depends on pack structure and operating conditions. |
| Maximum Continuous Discharge Current | 12.0A 25℃, not for cycle life testing |
| Pulse Discharge Current | 20A (5s) |
| Cycle Life | 7000 cycles (50% DOD) 4000 cycles (80% DOD) 3500 cycles (100% DOD) 2000 cycles (100% DOD, 1C rate) |
| Capacity Retention | ≥80% of rated capacity after cycle testing |
| Operating Temperature | Charge: 0℃~60℃ Discharge: -30℃~65℃ |
| Weight | Approx. 88g Including casing |
Product Advantages
- Long Cycle Life
- Up to 7000 cycles at 50% depth of discharge (DOD)
- Excellent durability for long-term applications
- High Safety Performance
- LiFePO4 chemistry provides superior thermal stability
- Lower risk of thermal runaway compared with traditional lithium-ion cells
- Wide Operating Temperature Range
- Supports discharge operation from -30℃ to 65℃
- Suitable for outdoor and harsh environments
- High Current Capability
- Continuous discharge current up to 12A
- Pulse discharge current up to 20A
Product Applications
- Solar Energy Storage Systems
- Portable Power Stations
- UPS Backup Power
- Electric Tools
- Robotics & AGV
- Low-Speed Electric Vehicles
- Custom Battery Packs
Product Certifications
Related Cylindrical LiFePO₄ Battery Cells
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