18650 900mAh High-Rate Cylindrical Sodium-ion Cell
Classic 18650 form-factor sodium-ion cell. Designed for cold-weather IoT devices, emergency backup lighting, portable power tools, and high-safety electronics.
Drop-in replacement for standard 18650 holders with intrinsic safety, non-combustible electrolyte chemistry, and full discharge capability to 2.85V without copper dissolution damage.

Electrochemistry Built for Extreme Durability
Designed for extreme cold, inherent safety, smart control, and consistent automated production.
−40 °C Extreme Cold Operation
Maintains usable capacity in freezing climates without internal heating pads.
Zero Thermal Runaway
Stable sodium chemistry resists fire propagation under severe safety testing.
Smart Automotive-Grade BMS
CAN and RS485 communication with cell-level balancing and full electrical protection.
Automated PACK Production
Laser welding, cell grading, and factory acceptance testing in our Huizhou campus.
Verified Specifications
Documented parameters tested under factory quality-control conditions.
Request Full 3D STEP & CAD Drawing Pack →Target Applications
- Cold-weather environmental monitoring stations and IoT sensors
- Emergency exit lighting and security backup modules
- Portable cordless power tools operating in winter conditions
Quality & Documentation Provided
- Factory lot inspection report and safety compliance dossier
Explore Other Sodium-ion Ranges
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