21700 5000mAh 3.6V NCA Battery -40°C to 60°C 800 Cycles

INR21700L50JH 3.6V 5000mAh 3C Discharge 800 Cycles

Product Name

INR21700L50JH Li-Ion Battery

Advantages

• High energy density (253Wh/kg)
• Excellent low-temperature performance
• Long cycle life
• Robust safety features

Specifications

Cycle Life

Discharge Curve

Operating Temperature Range

Certifications

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

Key Features

• Low-Temperature Optimized: Maintains ≥60% capacity at -40°C (0.2C discharge).
• High Discharge Efficiency: ≥90% at 2C rate (room temperature).
• Safety Compliance: Passes overcharge, short-circuit, drop, and thermal tests.

Applications

• Power tools
• Electric vehicles (EVs)
• Energy storage systems
• Medical devices
• Industrial equipment

Usage Warnings & Precautions

• Do NOT reverse charge/discharge or expose to temperatures >70°C.
• Use protective circuits to prevent overcharge (>4.2V/cell) or over-discharge (<2.5V/cell).
• Avoid mechanical damage (puncture, crush).

Storage Guidelines

• Store at 10–35% SOC in dry conditions (0–50% RH).
• Recharge to 10–35% SOC every 12 months for long-term storage.

Warranty & Disclaimer

• 1-year warranty for manufacturing defects (excludes misuse or improper assembly).
• Not liable for damages from unauthorized modifications or non-compliant chargers.

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