3.2V 20Ah Square LiFePO4 Battery Cell: Ultra-Low Temperature Power for Harsh Environments
Product Introduction
The 3.2V 20Ah Square LiFePO4 Battery Cell is a high-performance lithium iron phosphate (LiFePO4) solution engineered for extreme low-temperature environments and rugged applications. With a compact square form factor, this cell supplies a stable 3.2V output and 20Ah capacity while operating reliably in -40℃ to 55℃ conditions. Featuring 3C discharge capability at -40℃ (with ≥70% capacity retention) and passing rigorous acupuncture safety tests, the 3.2V 20Ah Square LiFePO4 Battery Cell ensures consistent power for devices in Arctic research, aerospace, outdoor industrial tools, or cold-climate energy storage.
Technical Specifications
| Parameter | Details |
|---|---|
| Nominal Voltage | 3.2V |
| Nominal Capacity | 20Ah (20000mAh) |
| Charging Temperature | -20~45℃ |
| Discharging Temperature | -40~55℃ |
| Max. Continuous Charging Current | 20A |
| Max. Continuous Discharging Current | 60A |
| -40℃ Discharge Rate | 3C (≥70% Capacity Retention) |
| Cell Dimensions (T×W×L) | 22mm × 70mm × 160mm |
| Cell Weight | 509±5g |
| Specific Energy | 126Wh/kg |
| Safety Features | Passes acupuncture test (no fire/explosion) |
Core Features
1. Ultra-Low Temperature Operation for Extreme Climates
The 3.2V 20Ah Square LiFePO4 Battery Cell excels in:
- -40℃ Discharging: Delivers 3C discharge current with ≥70% capacity retention—critical for devices in Arctic exploration, cold-region military gear, or sub-zero industrial operations.
- Wide Temperature Range (-40~55℃): Operates in frigid winters (-40℃) and hot summers (55℃), making it suitable for outdoor sensors, aerospace components, or off-grid energy storage in extreme climates.
2. Robust Safety & LiFePO4 Reliability
Leveraging lithium iron phosphate (LiFePO4) chemistry, this square cell offers:
- Acupuncture Safety Certification: Passes harsh needle penetration tests without fire or explosion, ensuring safety in high-risk applications (e.g., medical devices, aerospace).
- Inherent Thermal Stability: LiFePO4’s chemistry eliminates thermal runaway risks, providing peace of mind for critical systems.
3. High Power Density for Compact Devices
With 126Wh/kg specific energy and a square form factor (22×70×160mm):
- Fits seamlessly into space-constrained devices like cold-region drones, portable Arctic research instruments, or compact outdoor power tools.
- Delivers 60A max continuous discharge for high-power demands (e.g., motorized ice drills, cold-climate robotics).
4. Durable Performance for Long-Term Use
Engineered for reliability:
- Stable Cycling: Maintains capacity and performance over thousands of cycles, ideal for long-deployment sensors or repeated-use industrial tools.
- Lightweight Design (509±5g): Balances portability with power, perfect for handheld devices or mobile cold-climate equipment.
Application Scenarios
The 3.2V 20Ah Square LiFePO4 Battery Cell powers:
- Arctic & Cold-Region Equipment: Research drones, environmental sensors, or communication devices in -40℃ polar expeditions.
- Aerospace Components: Satellite subsystems, launch vehicle electronics, or high-altitude UAVs operating in frigid upper atmospheres.
- Outdoor Industrial Tools: Ice augers, cold-climate power wrenches, or portable generators for construction in sub-zero conditions.
- Extreme Energy Storage: Small-scale backup for remote weather stations, off-grid cabins, or military outposts in harsh climates.
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