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INR21700 5000mAh 7.4V portable electronic devices

The 7.4V 5000mAh INR21700 Lithium-ion Battery Pack is a high-performance rechargeable battery built using premium 21700 cylindrical lithium-ion cells. With a compact structure and stable electrical performance, this battery pack delivers reliable power for various portable electronic devices and industrial equipment. Its optimized design ensures a balance between high energy density, stable output voltage, and extended cycle life, making it suitable for long-term applications requiring consistent power supply. Designed with advanced battery management and safety features, the battery supports high-rate charging and discharging, ensuring efficient energy utilization and reliable operation. With a maximum continuous discharge current of 10A, it is ideal for devices that require moderate to high power output. The battery also performs well across a wide temperature range, ensuring stable operation in diverse environments. Additionally, the battery pack integrates protection mechanisms to enhance safety and durability. These include safeguards against overcharge, over-discharge, overcurrent, and short circuits, ensuring long-term reliability and safe operation. Its compact size and lightweight design make it suitable for integration into compact electronic products and portable systems.
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PKCELL
Features & Benefits

Product Details

  • High Energy Density
    Uses advanced INR21700 lithium-ion cells to provide higher capacity and longer runtime.
  • Stable Output Performance
    Nominal voltage of 7.4V ensures consistent power delivery for sensitive electronic devices.
  • High Discharge Capability
    Supports up to 10A continuous discharge, suitable for medium-to-high power equipment.
  • Wide Temperature Adaptability
    Operates reliably from -20°C to 60°C, suitable for both indoor and outdoor applications.
  • Long Cycle Life
    More than 300 charge/discharge cycles at 80% DOD, ensuring long service life.
  • Multiple Safety Protections
    Integrated protection circuit provides overcharge, over-discharge, overcurrent, and short-circuit protection.
  • Compact and Lightweight
    Optimized structural design with compact dimensions and only 180g weight.

Tech Specs

  • Model
    INR21700
  • Nominal Voltage
    7.4V
  • Nominal Capacity
    5000mAh
  • Size
    22.5*43.0*72.5mm
  • Internal Resistance
    ≤140mΩ
  • Charging Cut-off Voltage
    8.4V
  • Discharge Cut-off Voltage
    5.0V
  • Maximum Constant Charging Current
    5000mA
  • Maximum Continuous Discharging Current
    10000m
  • Charge Temperature
    0~10℃ | 0.2C， 0~35℃ |1C，35~45℃ | 0.5C
  • Discharge Temperature
    '-20~0℃| 0.2C，0~10℃ | 0.5C，10~35℃ | 2C，35~60℃ | 0.5C
  • Cycle Life
    ≥300（80%DOD）
  • Weight
    180g

Pkcell - Personalizzato
Esperto di soluzioni per batterie

Pkcell, established in 1998, is a professional Chinese battery manufacturer specializing in reliable and innovative power solutions. With a modern 28,000㎡ manufacturing facility and a strong R&D team of over 50 engineers, we deliver high-quality batteries to customers in more than 100 countries worldwide.

We focus on wide temperature and low temperature battery customization, providing stable and long-lasting power solutions designed to operate in extreme environments. Our batteries perform reliably under sub-zero and high-temperature conditions, making them ideal for medical devices, consumer electronics, industrial equipment, IoT systems and outdoor applications. Pkcell is committed to quality, safety and flexible OEM/ODM services to meet diverse customer needs.

  • 20
    +
    Anni di esperienza
  • 28000
    ㎡
    Struttura
  • 50
    +
    Esperti di R&S delicati
  • 100
    +
    Oltre 100 paesi esportati
About Pkcell