LG21700
2 製品
Premium LG 21700 Lithium-Ion Cells - Industrial-Grade Power for Professional Applications
The LG 21700 Series features authentic LG lithium-ion cells in the advanced 21700 format, delivering exceptional capacity and industrial-grade reliability. These high-quality 21700 cells provide superior power for demanding applications including electric vehicles, energy storage systems, industrial equipment, and professional high-capacity battery packs.
Why Choose LG 21700 Cells?
🏆 Authentic LG Industrial-Grade Quality
Genuine LG cells manufactured to industrial standards in the advanced 21700 format, ensuring superior performance and reliability.
⚡ High Capacity Range
Available in configurations from 4800mAh to 5800mAh for extended runtime and maximum energy storage.
🔋 Advanced 21700 Format
Larger than 18650 cells (21mm diameter × 70mm length), providing significantly more capacity in a compact form factor.
🌐 Industrial-Grade Applications
Perfect for electric vehicles, energy storage systems, industrial equipment, and professional high-capacity power applications.
Complete LG 21700 Cell Range
LG M48T - 4800mAh
High-capacity industrial-grade cell for professional applications requiring reliable power delivery and extended runtime.
LG INR21700-M50LT - 5000mAh
Industrial-grade cell with 5000mAh capacity for applications prioritizing runtime and energy storage.
LG INR21700-M52V - 5200mAh
Very high capacity industrial-grade cell with 5200mAh for maximum energy storage and extended operation.
LG M58T - 5800mAh
Maximum capacity industrial-grade cell with 5800mAh for ultimate energy storage and longest possible runtime.
21700 Cell Specifications
Physical Dimensions
Advanced 21700 format: 21mm diameter × 70mm length (approximate). Larger than 18650 cells, providing more capacity and power in a compact form factor.
Capacity Range
- 4800mAh: High capacity for extended runtime
- 5000mAh: Very high capacity for energy storage
- 5200mAh: Ultra-high capacity for maximum runtime
- 5800mAh: Maximum capacity for ultimate energy storage
Industrial-Grade Performance
LG 21700 cells are designed for industrial applications, providing reliable discharge performance and excellent cycle life.
Key Features
✓ Authentic LG Cells
Genuine LG manufactured 21700 cells with verified authenticity and industrial-grade quality assurance.
⚡ High Capacity
Exceptional capacity up to 5800mAh for extended runtime and maximum energy storage.
🔋 Superior Energy Density
21700 format provides significantly more capacity than 18650 cells in a compact form factor.
🌡️ Excellent Thermal Management
Advanced cell chemistry and larger format provide superior thermal management and safety characteristics.
🔬 Industrial-Grade Quality Control
Every cell undergoes rigorous testing and quality control to ensure consistent performance and safety for industrial applications.
⚙️ Long Cycle Life
LG 21700 cells are engineered for longevity, delivering hundreds of charge-discharge cycles with minimal capacity degradation.
Perfect Applications
- Electric Vehicles (EVs) and E-bikes
- Electric Motorcycles and Scooters
- Energy Storage Systems (ESS)
- Industrial Equipment and Machinery
- Custom High-Capacity Battery Packs
- Solar Energy Storage
- Backup Power Systems (UPS)
- Professional Power Tools
- Industrial Power Applications
- Off-Grid Power Solutions
The LG 21700 Advantage
Industrial-Grade Reliability
LG's industrial-grade manufacturing ensures reliable, consistent performance for professional applications.
Superior Capacity
Capacities up to 5800mAh provide maximum energy storage for extended runtime applications.
Advanced Format
21700 cells represent next-generation lithium-ion technology, offering superior performance over traditional 18650 cells.
Proven LG Quality
LG's manufacturing expertise ensures reliable, consistent performance you can trust for industrial applications.
Excellent Thermal Performance
Larger format provides better thermal management, enabling reliable operation and longer cycle life.
21700 vs 18650 Comparison
Why Choose 21700 Over 18650?
- Up to 40% more capacity in similar space
- Better thermal management and safety
- Improved energy density
- Next-generation lithium-ion technology
- Longer cycle life for industrial applications
- Superior capacity for energy storage
Best Practices for 21700 Cells
Charging:
- Charge to 4.2V per cell maximum (3.6V nominal)
- Always use appropriate lithium-ion chargers with proper voltage settings
- Charge at 0.5C to 1C for optimal lifespan
- Use BMS (Battery Management System) for multi-cell packs
- Store at 3.6V-3.7V per cell for long-term storage
- Never exceed maximum charge voltage
Discharge and Usage:
- Verify discharge current stays within cell specifications
- Discharge to 2.5V-3.0V minimum
- Avoid over-discharge to maximize cycle life
- Use appropriate BMS with over-discharge protection
- Monitor cell temperature during discharge
- Balance cells regularly in multi-cell packs
- Ensure adequate cooling for industrial applications
Safety and Storage:
- Store cells in cool, dry location (15-25°C optimal)
- Keep away from metal objects that could cause short circuits
- Use proper cell holders or insulation for loose cells
- Inspect cells regularly for damage, swelling, or corrosion
- Never use damaged, dented, or swollen cells
- Dispose of damaged cells properly at designated recycling centers
- Use fire-resistant storage containers for large quantities
Battery Pack Construction:
- Match cells by capacity and internal resistance for optimal performance
- Use spot welding for permanent connections (never solder directly to cells)
- Include appropriate BMS for protection and balancing
- Ensure adequate ventilation and thermal management
- Use proper insulation between cells and pack housing
- Test pack thoroughly before final assembly
Quality Assurance
Authentic LG Cells
Genuine LG manufactured 21700 cells with verified authenticity and industrial-grade quality documentation.
Rigorous Testing
Every cell undergoes comprehensive testing to ensure it meets LG's strict industrial performance and safety standards.
Quality Documentation
Cells include proper documentation and specifications for industrial and professional applications.
Safety Certifications
Meets international safety and quality standards including UL, CE, and RoHS compliance.
The Industrial-Grade Choice
The LG 21700 Series represents industrial-grade quality in lithium-ion cell technology. With authentic LG manufacturing, high capacity (4800mAh to 5800mAh), advanced 21700 format, and industrial-grade reliability, these cells provide everything professional integrators, industrial users, and energy storage system builders need for demanding applications.
LG 21700 Series—Industrial-Grade Quality, High Capacity, Proven Reliability.
