3.6V 4000mAh 21700 Lithium Ion Battery 45A Discharge

INR21700D40JH 3.6V 4000mAh 45A Discharge 500 Cycles

Product Name

INR21700D40JH High-Rate Lithium-Ion Battery Cell

Advantages

• Optimized for high-power applications like electric vehicle 21700 Li-Ion Battery Cell systems.
• Ultra-low internal resistance (≤15mΩ) for efficient energy delivery.
• Robust safety performance under extreme conditions.

Specifications

Cycle Life

Discharge Curve

Operating Temperature Range

Certifications

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

Key Features

• High-Rate Performance: Supports 45A continuous discharge for electric vehicle 21700 Li-Ion Battery Cell systems.
• Safety: Protections against overcharge, over-discharge, and overheating.
• Durability: Reliable operation in extreme temperatures (-20°C to 80°C).

Applications

• Electric vehicles (EVs) and hybrid systems
• High-power tools
• Energy storage systems

Usage Warnings & Precautions

• Do not exceed 4.2V charge voltage or 2.5V discharge cutoff.
• Avoid temperatures >80°C during discharge.
• Use only with compatible CCCV chargers (4.2V max).

Storage Guidelines

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

Warranty & Disclaimer

• 1-year warranty for manufacturing defects.
• Not liable for misuse, improper assembly, or unauthorized modifications.

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