NMC 21700 Battery 5500mAh 3.6V 11A Discharge Li-Ion

INR21700N55JH3 3.6V 5500mAh 11A Discharge 500 Cycles

Product Name

INR21700N55JH8 Li-Ion Battery

Advantages

• Ultra-high capacity (5500mAh)
• High discharge capability (up to 11A continuous)
• Optimized for EB/high-end digital applications
• Superior energy density (275Wh/Kg)

Specifications

Cycle Life

Discharge Curve

Operating Temperature Range

(*Carried over from previous model where unspecified)

Certifications

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

Key Features

• Precision Engineering: Tight tolerance (±0.2mm) cylindrical design
• Digital-Ready: Stable voltage output for high-end electronics
• Thermal Resilience: Safe operation across extreme temperatures

Applications

• E-bikes/E-scooters (EB)
• Premium portable electronics
• High-performance flashlights
• Backup power systems

Usage Warnings & Precautions

• Critical: Never exceed 4.2V charge voltage or 2.5V discharge cutoff
• Use only with CC/CV chargers (2.75A standard)
• Avoid stacking batteries without protective casing

Storage Guidelines

• Maintain 10%–35% SOC for long-term storage
• Store in moisture-proof packaging (<50% RH)

Warranty & Disclaimer

• 12-month performance warranty (excludes physical damage)
• Not responsible for misuse including improper charging or mechanical stress

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