DMEGC 21700
3 製品
Premium DMEGC 21700 Lithium-Ion Cells - High-Capacity Power for Professional Applications
The DMEGC 21700 Series features authentic DMEGC lithium-ion cells in the advanced 21700 format, delivering exceptional capacity and reliable performance. These high-quality 21700 cells provide superior power for demanding applications including electric vehicles, renewable energy storage, power tools, and professional battery packs.
Why Choose DMEGC 21700 Cells?
🏆 Authentic DMEGC Quality
Genuine Grade A DMEGC cells manufactured to high standards in the advanced 21700 format, ensuring reliable performance and long service life.
⚡ High Capacity Range
Available in configurations from 4500mAh to 5000mAh with reliable discharge performance for professional applications.
🔋 Advanced 21700 Format
Larger than 18650 cells (21mm diameter × 70mm length), providing significantly more capacity in a compact form factor.
🌐 Professional Applications
Perfect for electric vehicles, renewable energy storage, power tools, and professional battery pack construction.
Complete DMEGC 21700 Cell Range
DMEGC INR21700-45E - 4500mAh 3C
High-capacity cell with 4500mAh and 3C discharge rating. Excellent for power tools and electric vehicles requiring reliable power delivery.
DMEGC INR21700 - 5000mAh 5C
Maximum capacity cell with 5000mAh and 5C discharge rating. Perfect for renewable energy storage and applications prioritizing capacity and 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
- 4500mAh: High capacity with 3C discharge for power tools and EVs
- 5000mAh: Maximum capacity with 5C discharge for energy storage
Discharge Capabilities
Reliable discharge performance from 3C to 5C, suitable for professional applications requiring sustained power delivery.
Key Features
✓ Authentic Grade A DMEGC Cells
Genuine DMEGC manufactured 21700 cells with verified quality assurance.
⚡ High Capacity
Exceptional capacity up to 5000mAh for extended runtime and energy storage.
🔋 Superior Energy Density
21700 format provides significantly more capacity than 18650 cells in a compact form factor.
🌡️ Reliable Performance
Consistent power delivery and good thermal management for professional applications.
🔬 Quality Control
Every cell undergoes testing and quality control to ensure consistent performance.
⚙️ Long Cycle Life
DMEGC 21700 cells deliver reliable cycle life for professional applications.
Perfect Applications
- Electric Vehicles (EVs) and E-bikes
- Renewable Energy Storage Systems
- Solar Energy Storage
- Power Tools and Cordless Equipment
- Custom Battery Pack Construction
- Backup Power Systems (UPS)
- Energy Storage Systems (ESS)
- Electric Motorcycles and Scooters
- Industrial Equipment
- Professional Power Applications
The DMEGC 21700 Advantage
High Capacity
Capacities up to 5000mAh provide extended runtime for professional applications.
Advanced Format
21700 cells represent next-generation lithium-ion technology, offering superior performance over traditional 18650 cells.
Reliable Quality
DMEGC's manufacturing ensures consistent performance for professional applications.
Good Value
High-quality cells at competitive pricing for professional and commercial applications.
Renewable Energy Ready
Ideal for renewable energy storage and sustainable power applications.
21700 vs 18650 Comparison
Why Choose 21700 Over 18650?
- Up to 40% more capacity in similar space
- Better energy density
- Improved thermal management
- Next-generation lithium-ion technology
- Superior capacity for energy storage
Best Practices for 21700 Cells
Charging:
- Charge to 4.2V per cell maximum (3.7V 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 (3C or 5C depending on model)
- 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
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 Grade A DMEGC Cells
Genuine DMEGC manufactured 21700 cells with quality documentation.
Quality Testing
Every cell undergoes testing to ensure it meets performance standards.
Professional Applications
Suitable for professional and commercial battery pack construction.
Safety Standards
Meets international safety and quality standards for professional use.
The Professional Choice
The DMEGC 21700 Series delivers high-capacity power in the advanced 21700 format. With authentic DMEGC manufacturing, capacities from 4500mAh to 5000mAh, reliable discharge performance, and competitive pricing, these cells provide everything professional integrators, renewable energy system builders, and EV manufacturers need for demanding applications.
DMEGC 21700 Series—High Capacity, Reliable Performance, Professional Quality.
