Product Name: 21700 4500mAh Li-ion Cell

Electrical Parameters:

Key Features:

• High energy density and long cycle life
• Stable performance across a wide temperature range
• Low internal resistance supports high discharge rates
• Standard 21700 cylindrical form factor
• Ideal for high-drain applications including power tools, electric vehicles, and energy storage systems

Applications:

• Electric vehicles and e-bikes
• Portable power stations
• High-drain consumer electronics
• Medical devices
• LED lighting systems
• UPS backup power units

Safety & Compliance:

• Built-in protection against overcharge, over-discharge, and short circuit
• Compliant with CE, RoHS, and UN38.3 certifications
• Stable NMC chemistry with high thermal reliability

Notes:

• All values are typical at 25°C and 1 atm unless specified.
• Performance may vary based on usage conditions and load characteristics.
• Refer to the full product specification sheet for detailed test conditions and limitations.

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