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Nitecore Li-Ion Rechargeable 21700 Battery 5300Mah 3.6V

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Nitecore Li-Ion Rechargeable 21700 Battery 5300Mah 3.6V

  • Revolutionary and powerfully upgraded, the 21700 I series battery by NITECORE is a patent product that offers a unique and advanced design.
  • This proprietary 21700 rechargeable Li-ion battery features dual way output with positive and negative polarities at both ends, allowing for highly efficient energy conversion.
  • With a high energy density, this battery minimizes power loss due to internal resistance, resulting in a more efficient output.

Unprecedented Battery Performance

  • The dual polarities of the 21700 I series battery break the convention of linking the head and tail of the flashlight, reducing size and weight.
  • This innovative design greatly reduces internal resistance, providing a direct energy conversion to power the device.

Safety Features

  • The 21700 I series battery is equipped with a microporous barrier that protects delicate internal components.
  • It is also coated with a durable metallic film to guard against abrasion, ensuring long-lasting performance.

Environmentally Friendly

  • This battery is mercury-free, lead-free, and cadmium-free, making it a safe and eco-friendly choice.
  • Additionally, it can be recharged over 500 times, providing a cost-effective and sustainable power solution.


  • Capacity: 5,300mAh
  • Voltage: 3.6V
  • Continuous Discharge Current: 20A MAX
  • Length: 77.2±0.3mm / 3.04"±0.01"
  • Diameter: 22.2±0.3mm / 0.87"±0.01"

Experience the power and efficiency of the 21700 I series battery. Upgrade your devices with this revolutionary rechargeable Li-ion battery for unparalleled performance and reliability.

Product Code: PIDcf236
Nitecore Li-Ion Rechargeable 21700 Battery 5300Mah 3.6V

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