21700 3.7V 4000-5000mAh NCM Li-ion Battery

Key Features:

• Voltage: Nominal 3.7V (range 2.75-4.2V), compatible with most 3.6V/3.7V Li-ion devices

• NCM Cathode: Energy density 204-300 Wh/kg, 557 Wh/L, enabling compact lightweight designs

• Charge-Discharge: 0.7-3.0C charge, 3.0-10C discharge; internal resistance <12-20mΩ, low energy loss

• Operating Temp: -20℃~60℃ (discharge), 0℃~45℃ (charge), adaptable to harsh environments

• Cycle Life: ≥700-800 cycles (0.5C), ≥80% capacity retention, reducing replacement cost

Core Advantages:

• Energy Efficiency: 204-300 Wh/kg high energy density, optimized production for cost advantage and stable low-loss output

• Factory-Scale Scalability: Full-automatic lines support large-scale mass production, stable supply for bulk OEM/ODM orders with consistent quality

• Reliable Safety: Multi-protection design, ≤55℃ at 10C discharge, compliant with UN38.3, IEC62133 and other international standards

• Strong Compatibility: Standard 21mm×70mm size, supports series/parallel connection for custom packs without structural modification

• Eco & Durable: RoHS-compliant, heavy metal-free, ≥700-800 cycles life, conforms to global environmental standards

Applications:

• Automotive: EVs, hybrid vehicles, e-scooters, e-bikes

• Energy Storage: Residential/commercial ESS, solar/wind backup, UPS, portable power stations

• Industrial Tools: Cordless drills, saws, grinders

• Consumer Electronics: High-performance flashlights, portable speakers, gaming devices, portable medical monitors

• Aerospace & UAVs: Drones (environmental monitoring), lightweight aerospace devices