SONY 21700

Premium Sony 21700 VTC Lithium-Ion Cells - Next-Generation High-Performance Power

The Sony 21700 VTC Series features authentic Sony lithium-ion cells in the advanced 21700 format, delivering superior capacity and extreme performance. These next-generation 21700 cells provide exceptional power for demanding applications including electric vehicles, power tools, vaping devices, and high-performance custom battery packs.

Why Choose Sony 21700 VTC Cells?

🏆 Authentic Sony VTC Quality
Genuine Sony VTC cells manufactured to the highest standards in the advanced 21700 format, ensuring superior performance and reliability.

⚡ Extreme Performance
VTC6A model delivers 4000mAh capacity with impressive 40A continuous discharge capability for extreme high-drain applications.

🔋 Advanced 21700 Format
Larger than 18650 cells (21mm diameter × 70mm length), providing significantly more capacity and power in a compact form factor.

🌐 High-Performance Applications
Perfect for electric vehicles, power tools, vaping devices, and professional high-drain applications requiring maximum power delivery.

Sony VTC6A 21700 Specifications

Model: Sony VTC6A
Sony's premium 21700 lithium-ion cell designed for extreme high-drain applications.

Capacity: 4000mAh
High capacity provides extended runtime for demanding applications.

Continuous Discharge: 40A
Extreme 40A continuous discharge capability for maximum power delivery.

Nominal Voltage: 3.6V
Standard lithium-ion voltage compatible with most applications.

Physical Dimensions
21700 format: 21mm diameter × 70mm length (approximate). Larger than 18650 cells, providing more capacity and power.

Key Features

✓ Authentic Sony VTC Cells
Genuine Sony manufactured 21700 cells with verified authenticity and quality assurance.

⚡ Extreme 40A Discharge
Outstanding 40A continuous discharge delivers maximum power for the most demanding applications.

🔋 4000mAh High Capacity
Extended runtime for high-drain devices and applications requiring sustained power delivery.

🌡️ Excellent Thermal Management
Advanced cell chemistry and larger 21700 format provide superior thermal management and safety characteristics.

🔬 Premium Quality Control
Every cell undergoes rigorous testing and quality control to ensure consistent performance and safety.

⚙️ Long Cycle Life
Sony VTC cells are engineered for longevity, delivering hundreds of charge-discharge cycles with minimal capacity degradation.

Perfect Applications

• High-Performance Vaping Devices
• Electric Vehicles (EVs) and E-bikes
• Power Tools and Cordless Equipment
• Custom High-Drain Battery Packs
• High-Performance Flashlights
• RC Vehicles and Drones
• Professional Audio and Video Equipment
• Energy Storage Systems
• Electric Skateboards and Personal Mobility
• DIY High-Drain Electronics Projects

The Sony VTC 21700 Advantage

Superior Capacity
21700 format provides significantly more capacity than 18650 cells—4000mAh in a compact form factor.

Extreme Power Delivery
40A continuous discharge capability enables the most demanding high-drain applications.

Advanced Format
21700 cells represent the next generation of lithium-ion technology, offering superior performance over traditional 18650 cells.

Proven Sony Quality
Sony's manufacturing expertise ensures reliable, consistent performance you can trust for professional applications.

Excellent Thermal Performance
Larger format provides better thermal management, enabling higher discharge rates and longer cycle life.

21700 vs 18650 Comparison

Why Choose 21700 Over 18650?

• Significantly more capacity (4000mAh vs typical 2600-3000mAh for 18650)
• Higher discharge rates for extreme applications (40A)
• Better thermal management and safety
• Improved energy density
• Next-generation lithium-ion technology
• Longer cycle life in high-drain applications

Best Practices for Sony VTC 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 (2A to 4A for 4000mAh cells)
• 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 40A continuous specification
• 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 high-current discharge
• Balance cells regularly in multi-cell packs
• Ensure adequate cooling for continuous high-drain use

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 (critical for 40A discharge)
• Use proper insulation between cells and pack housing
• Test pack thoroughly before final assembly
• Consider active cooling for extreme discharge applications

Quality Assurance

Authentic Sony VTC Cells
Genuine Sony manufactured 21700 cells with verified authenticity and quality documentation.

Rigorous Testing
Every cell undergoes comprehensive testing to ensure it meets Sony's strict performance and safety standards.

Quality Documentation
Cells include proper documentation and specifications for professional applications.

Safety Certifications
Meets international safety and quality standards including UL, CE, and RoHS compliance.

The Next-Generation High-Performance Choice

The Sony 21700 VTC Series represents next-generation high-performance power in lithium-ion cell technology. With authentic Sony VTC manufacturing, 4000mAh capacity, extreme 40A discharge capability, and the advanced 21700 format, these cells provide everything high-drain users, professional integrators, and performance enthusiasts need for the most demanding applications.

Sony 21700 VTC Series—Next-Generation Power, Extreme Performance, Proven Reliability.