INR21700N55A30 21700 Battery 3.6V 5500mAh 30A 500 Cycles High Capacity

Product Name

INR21700N55A30 21700 Battery

Advantages

• High Energy Density: 5500mAh capacity for extended runtime.
• Robust Performance: Supports high continuous and pulse discharge currents.
• Long Cycle Life: Retains ≥80% capacity after 500 cycles.
• Wide Temperature Tolerance: Reliable operation in extreme environments.

Specifications

Cycle Life

Discharge Curve

Operating Temperature Range

Certifications

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

Key Features

• High Safety: Passes crush, short-circuit, and thermal abuse tests.
• Low Self-Discharge: ≤3% monthly at 25°C storage.
• Fast Charging: Full charge in 180 minutes at 10A current.
• Consistent Performance: Tight voltage and impedance tolerances (ΔV ≤10mV, ΔR ≤2mΩ).

Applications

• Power tools (e.g., drills, saws)
• Electric vehicles (e-bikes, scooters)
• Energy storage systems (solar, UPS)
• Industrial equipment (robotics, drones)
• High-drain portable devices (camping gear, medical devices)

Usage Warnings & Precautions

• Voltage Limits: Do not exceed 4.25V during charging or discharge below 2.50V.
• Temperature Control: Avoid charging above 50°C surface temperature.
• Short-Circuit Prevention: Use insulated tools; keep terminals clean.
• No Modification: Never disassemble or pierce the battery.

Storage Guidelines

• Short-Term (≤3 months): Store at -20°C to 45°C, 30%-50% SOC.
• Long-Term (>3 months): Store at -20°C to 25°C, 3.5V-3.7V voltage.
• Maintenance: Recharge every 3 months to 3.65V using 0.5C current.

Warranty & Disclaimer

• 12-Month Limited Warranty: Covers manufacturing defects.
• Exclusions: Damage from misuse, improper storage, 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