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Nitecore NL2140R 21700 4000mAh 3.6V Protected Lithium Ion (Li-ion) Button Top Battery with Built-In USB-C Charging Port

Item #: NITECORE-NL2140R
Brand: Nitecore
Item #: NITECORE-NL2140R
Brand: Nitecore

Nitecore NL2140R 21700 Protected Li-ion Button Top Battery

Built-in USB-C Charging Port, 3.6V 4000mAh 5A

The new Nitecore NL2140R is a high drain 21700 battery designed for high performance flashlights and electronic devices. The high 4000mAh capacity ensures long run times and powerful outputs. This battery has the unique benefit of having a built-in USB-C charging port so you can easily recharge it without needing to buy an external charger. Whether you choose to charge back up with a USB-C cable or Li-ion smart charger, this battery can be recharged 500 times. By reusing drained cells you save money and help the environment! The safe 3 year shelf life makes it perfect for storing as a back-up for when you need it most.


  • High drain 21700 li-ion battery
  • Built-in USB-C charge port for easy charging without external charger
  • 3.6 volts of reliable lithium power
  • High 4000mAh capacity for superior runtimes
  • Found in the newest Nitecore flashlights like the New P12
  • Stable 3 year shelf life
  • Capable of being recharged 500 times
  • Multiple safety protections from over-charging and over-discharging
  • Nitecore 1 Year Warranty

Technical Specifications:

  • Battery Size: 21700
  • Battery Model: NL2140R
  • Battery Chemistry: Lithium Ion (Li-ion)
  • Terminal Type: Button Top
  • Rechargeable: Yes - External charger and Built-in USB-C Port
  • Protected Cell: Yes
  • Nominal Voltage: 3.6V
  • Nominal Capacity: 4000mAh
  • Max Discharge Current: 5A
  • Estimated Charge Cycles: 500 cycles
  • Shelf Life: 3 Years
  • UPC: 6952506493500
  • Dimensions:

    • Height: 2.96" (75.2mm)
    • Diameter: 0.85" (21.6mm)
    • Weight: 3oz. (85g)

    Note: This package does not include a USB-C charging cable.

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