21700 Ultra Low Temperature Battery 3.6V 5000mAh Lithium Ion Battery 12C High Performance
The 21700 3.6V 5000mAh Ultra-Low Temperature Lithium Battery is a high-performance rechargeable lithium-ion cell specially engineered for extreme cold environments. Featuring advanced low-temperature electrolyte technology and optimized internal structure, this battery delivers stable discharge performance and reliable power output even under severe low-temperature conditions.
With high energy density and excellent low-temperature discharge capability, the 21700 battery cell is widely used in outdoor equipment, medical instruments, GPS trackers, cold-region energy storage systems, and other applications requiring dependable operation in freezing climates.
- Excellent discharge performance at ultra-low temperatures
- Supports operation in environments as low as -40°C
- High energy density
- Long cycle life and low self-discharge rate
- Stable charging and discharging performance
- Advanced safety protection and thermal stability
- Suitable for high-drain and continuous power applications
- Lightweight and maintenance-free
| Min. capacity | 4900mAh | Typical capacity | 5000mAh |
| Nominal voltage | 3.6V | Energy | 17.6Wh |
| End-of-charge voltage | 4.2V | Discharge cut-off voltage | 2.5V |
| Max. Pulse Discharge Current (10s) | 125A (25±2℃, 50% SOC) | Max. Charge Current | 15A |
| Max. Continuous Discharge Current | 60A (with 80℃ temperature cut) | Cell Internal Resistance | ≤ 4.0mΩ |
| Cell Weight | 67.0±1.5g | Cell Dimension | Diameter: 21.35±0.15mm Height: 70.7±0.2mm |
| Cycle life | 1000 times | Warranty | 1 year |
- Outdoor monitoring equipment
- Wildlife cameras and GPS tracking devices
- Cold-region solar energy storage systems
- Aerospace equipment
- Medical devices used in low-temperature environments
- Laser infrared aimpoint
- Cold storage AGV
- Electric tools and emergency lighting
- Cell shall be charged per 5.2
- Store the cell at -40±2℃ for 24 hours
- Discharge the cell with constant current to 2.0V with 2C/3C/5C
- Cell shall be charged per 5.2
- Store the cell at -50±2℃ for 24 hours
- Discharge the cell with constant current to 2.0V with 1C/2C/3C/4C
- Cell shall be charged per 5.2
- Store the cell at -60±2℃ for 24 hours
- Discharge the cell with constant current to 2.0V with 1C
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