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Lishui Town, Foshan, Guangdong, China
21700 Ultra-Low Temp 7.2V 9Ah Li-ion Battery Pack for Polar Expedition & Arctic Equipment
- 9000mAh capacity with 2S2P 21700 cell configuration
- Ultra-wide temperature range (-40°C to 55°C)
- Compact design (48×155×24mm) & lightweight (300g)
- Fast charging (1.5hrs) & low self-discharge (<3%/month)
- Customizable connectors (X.54/P.54/DC5521)
- 500+ cycles @25°C with ≤80% capacity retention
Specification
| Parameter | Battery | Cell |
|---|---|---|
| Nominal Voltage | 7.2V | 3.6V (21700) |
| Capacity | 9Ah (9000mAh) | 4500mAh |
| Max Discharge Current | – | 45A (@45°C cutoff) |
| Charge Temperature | 0°C–60°C | 0°C–60°C |
| Discharge Temperature | -40°C–55°C | -40°C–60°C |
| Energy Density (Gravimetric) | 242 Wh/kg | 242 Wh/kg |
| Cycle Life | 500 cycles (@25°C) | N/A |
| Dimensions | 48×155×24mm | 21×70mm (21700) |
Application
Polar Research & Scientific Exploration
Designed for extreme cold environments, this battery powers instruments like temperature sensors, GPS trackers, and autonomous drones in Arctic/Antarctic expeditions. Its -40°C discharge stability ensures reliable operation in subzero conditions for glacial studies and climate monitoring.Frigid Zone Emergency Rescue Systems
Ideal for portable medical devices, communication gear, and thermal imaging tools used in snowstorms or avalanche rescues. Maintains 80% capacity at -40°C to support uninterrupted emergency operations.Low-Temperature Industrial Monitoring
Optimized for remote sensors, pipeline inspection robots, and telemetry systems in oil/gas fields or cryogenic storage facilities. Operates reliably in -40°C to 55°C ranges for 24/7 data collection.Arctic Robotics & Drones
Enables extended flight times for UAVs mapping icy terrains or delivering supplies. Combines lightweight design (300g) with high gravimetric energy density (242 Wh/kg) for agile cold-zone robotics.Cold-Chain Logistics & Storage
Supports temperature-sensitive cargo tracking in refrigerated trucks or shipping containers. Low self-discharge (<3% monthly) ensures long-term reliability for IoT devices in cold-chain monitoring.Technical Advantages
- Ultra-Low Temperature Resilience: Delivers >80% capacity at -40°C (0.2C discharge), outperforming standard Li-ion batteries.
- Wide Operational Range: Functions seamlessly from -40°C to 55°C, ideal for extreme environments.
- Rapid Charging: Achieves full charge in 1.5 hours with 0.5C current, minimizing downtime.
- Enhanced Safety: Integrated BMS protects against overcharge, short circuits, and thermal runaway.
Why Choose This Battery?
This battery leverages advanced low-temperature electrolyte technology and high-density 21700 cells to outperform competitors in extreme cold. Its compact size and modular BMS enable seamless integration into mission-critical devices, while CE/ROHS certifications ensure compliance with international safety standards. For full technical documentation or OEM customization, refer to the original specifications.Our Contact
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