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High-Capacity 4500mAh 21700 Lithium-Ion Cell

High-Capacity 4500mAh 21700 Lithium-Ion Cell

Normal Capacity 4500mAh
Minimum Capacity 4400mAh
Nominal Voltage 3.7V
Charging Voltage 4.2V
Discharge Cut-off Voltage 2.5V
Max Charge Current 1C
Max Continuous Discharge Current 3C
Dimension Height 70.75mm, Diameter 21.4mm
Recommended Storage -20°C to 25°C, ≤70% RH
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Details

Features:

  • Exceptional 4500mAh capacity for extended use.
  • Stable 3.7V output with a high charge voltage of 4.2V.
  • Durable design with over 800 cycles at 80% capacity retention.
  • Fast charging up to 1C and high discharge rate of 3C.

Specifications:

  • Nominal Capacity: 4500mAh
  • Minimum Capacity: 4400mAh
  • Nominal Voltage: 3.7V
  • Charging Voltage: 4.2V
  • Discharge Cut-off Voltage: 2.5V
  • Max Charge Current: 1C
  • Max Continuous Discharge Current: 3C
  • Dimensions: Height 70.75 mm, Diameter 21.4 mm
  • Recommended Storage: -20°C to 25°C, ≤70% RH

Applications:

  • High-performance portable devices
  • Energy storage solutions
  • Electronic vehicles

Why Choose Us?

  • Expertise

    Years of experience and technical proficiency in high-performance LiPo batteries for diverse applications.

  • Innovation

    Unique handling and sealing processes solving key technology issues: high consistency and safety.

  • Customization

    Offering flexible OEM and ODM services tailored to meet individual business needs.

  • Quality

    Rigorous testing standards and stringent quality control ensure reliability and durability of our batteries.

  • Affordability

    Competitive pricing achieved through efficient production processes and economies of scale.

  • Support

    Comprehensive logistics support ensuring timely and safe delivery of your products.

Safety Notes

  1. Before using it, please fully charge it with a specific LiPo balance charger.
  2. If the new LiPo battery won’t hold a full charge or loss the charge very quickly in a short time, please use a professional lipo battery Charger to charge and recycle several times first. For most LiPo batteries, the safest charge rate is 1C.
  3. The charging temperature must range from 15-35 Celsius, reverse charging is prohibited.
  4. The voltage difference between any two cells should be in 0.03V, or a charge is advised to balance the voltages before usage.
  5. NEVER overcharge or Over-discharge lipo battery. Never charge above 4.2V per cell and discharge below 3.0V per cell. (Normal cell voltage is between 3.7V~4.2V).
  6. Do store battery at a place with low humidity and free from corrosive gas within the temperature ranged from -20 Celsius to +40 Celsius.
  7. Under any circumstances, disassembly of the battery is prohibited.