21700 3.6V 5000mAh 40A Li-Ion Battery 500 Cycles

INR21700N50JH8 3.6V 5000mAh 40A Discharge 500 Cycles

Product Name

INR21700N50JH8 High-Rate Li-Ion Battery

Advantages

• High-capacity 5000mAh with superior rate performance
• Ultra-low internal resistance (≤7mΩ)
• Extended cycle life (500 cycles)
• Multi-rate discharge capability (up to 8C/40A)

Specifications

Cycle Life

Discharge Curve

Operating Temperature Range

Certifications

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

Key Features

• Multi-Rate Performance: 95% efficiency at 2C (10A), 92% at 6C (30A)
• Thermal Resilience: Stable operation from -20°C to 60°C
• Safety Built-in: Passes overcharge/over-discharge/short-circuit tests

Applications

• High-power tools
• Electric vehicles (EV power systems)
• Industrial equipment
• Energy storage systems

Usage Warnings & Precautions

• Critical: Never exceed 4.2V charge voltage or discharge below 2.5V
• Use only with CC/CV chargers (2.5A standard)
• Terminate discharge if surface temperature exceeds 75°C

Storage Guidelines

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

Warranty & Disclaimer

• 12-month performance warranty (excludes physical damage/misuse)
• Not liable for damages caused by improper welding or circuit design

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