Nitecore 21700 NL2150 Li-ion Battery (5000mAh)


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Nitecore 21700 NL2150 Li-ion Battery (5000mAh)
  • Capacity: 5000mAh
  • Voltage: 3.6V
  • Continuous Discharge Current: 5A max
  • Weight: 73 g / 2.57 oz. (approx)
  • Length: 75.2±0.3 mm / 2.96"±0.01"
  • Diameter: 21.6±0.3 mm / 0.85"±0.01"
  • Never expose the battery to water or fire
  • When charging or using batteries, ensure the positive and negative ends correspond with the positive (+) and negative (-) symbols
  • To extend battery life it is recommended that it is charged every three months when unused for long periods
  • Keep out of reach of children
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Nitecore 21700 NL2150 Li-ion Battery (5000mAh)

1 Review

5.0 Overall rating




The Nitecore NL2150 21700 Li-ion battery features a long lifespan, high energy density and powerful performance. The cell has a 5000mAh capacity, 3.6V and 18Wh.

Nitecore batteries have a range of safety features to ensure your safety when in use, plus that of your other devices and chargers.

Internal safety features include:

  • Innovative anode design with high temperature resistance
  • Built-in PTC to inhibit high current surges
  • Pressure relief valve which activates in the event of a rapid temperature increase
  • A microporous barrier that protects the delicate internal components.

External safety features include:

  • Nickel-plated stainless steel protectors at both ends to ensure high impact resistance, good electrical conductivity and oxidation resistance
  • Coated with a durable metallic film to guard against abrasion
  • Tough plastic circuit board protector

The 21700 is recommended to use with the following Nitecore chargers: UI1, UI2, UMS2 and UMS4.

We are unable to accept returned batteries once they have been opened, so please ensure they are the correct cell for your device before ordering.

Due to shipping restrictions we are unable to send orders containing only batteries without a device to Northern Ireland and the Channel Islands. Orders that include a device such as a torch and/or charger are unaffected.