Product Name

18650 Cylindrical Lithium-Ion Rechargeable Battery (Model: INR18650L30T20)

Advantages

Superior low-temperature performance with reliable discharge at -40℃ and stable charging at -20℃. Features 2000mAh capacity, 3.6V nominal voltage, 5C (9750mA) continuous discharge current, and 500-cycle life. Wide operating temperature range makes it ideal for cold-environment applications, similar to 21700 Li-Ion Battery standards.

Specifications

Cycle Life

Discharge Curve

Operating Temperature Range

Certifications

Complies with UN38.3, CE, RoHS, and IEC 62133 safety standards.

Key Features

• Exceptional low-temperature performance at -40℃ discharge and -20℃ charging
• 2000mAh capacity with 3.6V nominal voltage for consistent power delivery
• 5C (9750mA) continuous discharge current with 90℃ thermal protection
• 500-cycle life at 0.5C with ≥70% capacity retention
• Wide operational temperatures matching 21700 Li-Ion Battery applications in cold environments

Applications

Cold-weather electronics, outdoor equipment, industrial tools, energy storage systems for frigid regions, and low-temperature Li-Ion Battery applications. Suitable for devices requiring reliable performance in -40℃ conditions, such as medical equipment and remote sensors.

Usage Warnings & Precautions

• Do not charge below -20℃ or discharge below -40℃.
• Use specified chargers and follow 4.2V charge limit.
• Avoid short circuits or exposure to temperatures exceeding 90℃ during discharge.
• Prevent immersion in water, fire, or physical damage in cold environments.

Storage Guidelines

• Store in a dry, ventilated area below 35℃ (humidity <75%) to maintain low-temperature performance.
• Long-term storage at -20℃ to 25℃ (0-12 months) ensures optimal capacity recovery.

Warranty & Disclaimer

1-year warranty covers defects affecting low-temperature performance or manufacturing flaws. Performance data is validated under standard conditions; actual results may vary by application.

Our Mission:  Original Innovation, Power the Future!

As a high-tech enterprise specializing in the R&D and manufacturing of lithium-ion batteries, sodium-ion batteries, and solid-state batteries. Founded in 2020 in Shenzhen, China’s innovation hub, we are driven by our core philosophy of "Original Innovation & Development" , delivering sustainable, high-performance energy solutions for global applications, including consumer electronics, smart devices, electric vehicles, and energy storage systems.

With dozens of proprietary patents, the accreditation of Guangdong Provincial Eco-Friendly Lithium Battery Engineering Research Center, and strategic collaborations with leading institutions like National University of Singapore, Wuhan University, and Shenzhen University, OiD continuously pushes the boundaries of battery technology. Our products power critical infrastructure, including high-speed rail energy storage, residential solar systems, and defense projects, accelerating the global transition to clean energy.

Key Strengths

1.  Original Innovation
   • Core technologies in Li/Na-ion and solid-state batteries, backed by inventions, utility models, and design patents.
   • Joint R&D centers with top universities (e.g., Wuhan University), enabling rapid commercialization of cutting-edge research.
2.  End-to-End Energy Solutions
   • 500+ customizable battery models for consumer electronics, EVs, and grid-scale storage.
   • Superior performance: high energy density, fast charging, extended cycle life, and extreme-temperature resilience
3. Sustainability Commitment
   • Eco-conscious materials (e.g., cobalt-free cathodes, solid electrolytes) and processes to minimize environmental impact.
4. Global Reach
   • R&D Hubs: Shenzhen, Wuhan (university partnerships)
   • Manufacturing: Automated production lines in Shenzhen
   • Markets: Asia, Europe, North America