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Lishui Town, Foshan, Guangdong, China
Ultra-Low Temp Lithium-Ion 7.2V 9Ah 21700 Battery Pack
- Ultra-low temperature performance (-40°C)
- High capacity 9000mAh (9Ah)
- Rapid 1.5-hour fast charging
- Integrated BMS for safety
- Compact 48x90x48mm size
- Wide operating range (-40°C to 55°C)
- Low self-discharge rate
Specification
Battery Specifications
| Parameter | Value | Details |
|---|---|---|
| Rated Voltage | 7.2V | Lithium-ion 2S2P configuration |
| Capacity | 9000mAh (9Ah) | Tested at 0.2C discharge |
| Cell Type | 21700 (4 cells) | High-density 4500mAh per cell |
| Dimensions | 48x90x48mm | Compact, space-saving design |
| Weight | 300g | Lightweight for portability |
| Cycle Life | 500 cycles | At 25°C, 80% capacity retention |
| Operating Temperature | -40°C to 55°C | Discharge/charge optimized |
| Storage Temperature | 0-35°C (1 year) | Long-term storage guidance |
| Connectors | X.54, P.54, DC5521 | Customizable upon request |
Cell Specifications
| Parameter | Value |
|---|---|
| Max Discharge Current | 45A (45°C cutoff) |
| Charge Time | 1.5 hours (standard) |
| Volumetric Energy Density | 643 Wh/l |
| Gravimetric Energy Density | 242 Wh/kg |
| Charge Temperature | 0°C to 60°C |
| Discharge Temperature | -40°C to 60°C |
Application
Polar Research & Antarctic Exploration
Power critical scientific instruments, data loggers, and sensors in extreme cold (-40°C). Ideal for meteorological stations, ice core sampling tools, and remote communication devices requiring stable energy in prolonged sub-zero conditions.Frigid Zone Rescue & Emergency Operations
Reliable energy for emergency beacons, GPS units, medical devices, and thermal imaging equipment during Arctic/Antarctic rescue missions. Ensures uninterrupted operation in life-saving scenarios where temperatures plummet below -30°C.Low-Temperature Industrial & Military Equipment
Supports drones, robotics, surveillance systems, and cold-chain logistics devices operating in Siberia, Alaska, or high-altitude regions. Built for harsh environments with rapid discharge stability and minimal voltage drop.Technical Advantages
- Ultra-Wide Operating Range: Performs flawlessly from -40°C to 55°C for Arctic to moderate climates.
- High Energy Density: 21700 cells deliver 242 Wh/kg, maximizing runtime in compact devices.
- Fast Charging: Full charge in 1.5 hours with 0.5C current support.
- Advanced BMS Protection: Overcharge, over-discharge, and short-circuit safeguards.
- Lightweight Design: 300g weight for easy integration into portable gear.
Why Choose This Battery?
- Extreme Cold Reliability: Engineered for -40°C discharge with minimal capacity loss.
- Long Lifespan: 500+ cycles at 25°C, ensuring durability for long-term deployments.
- Customizable Connectors: X.54, P.54, DC5521, or bespoke options available.
- Low Self-Discharge: <3% monthly, ideal for seasonal or infrequent use.
- Compliance: Meets stringent safety standards for industrial and field use.
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