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High-Performance 3.7V 4Ah 21700 Lithium Cell (Orange)

High-Performance 3.7V 4Ah 21700 Lithium Cell (Orange)

Nominal Capacity 4Ah
Minimum Capacity 3.9Ah
Nominal Voltage 3.7V
Energy 14.8Wh
Charge Cut-Off Voltage 4.2V
Discharge Cut-Off Voltage 2.5V
Maximum Continuous Discharge Current 10C
Max Pulse Discharge Current 20C for 2s
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Details

Features:

  • Compact design with a high capacity of 4Ah.
  • Energy density of over 217Wh/kg for efficient power storage.
  • Low internal resistance of less than 15mΩ ensures high performance.
  • Capable of handling extreme temperature variations.

Specifications:

  • Nominal Capacity: 4Ah
  • Minimum Capacity: 3.9Ah
  • Nominal Voltage: 3.7V
  • Energy: 14.8Wh
  • Charge Cut-off Voltage: 4.2V
  • Discharge Cut-off Voltage: 2.5V
  • Maximum Continuous Discharge Current: 10C
  • Max Pulse Discharge Current: 20C for 2s

Applications:

  • Portable electronics
  • Medical devices
  • Small-scale energy storage systems

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.