Nitecore NB20000 Power Bank


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Nitecore NB20000 Power Bank
  • Cell: Li-ion
  • Capacity: 20,000mAh 3.85V (77Wh)
  • Rated Energy: 13,500mAh 5V (TYP 2A)
  • Input: USB-C (Input) 5V - 2.4A / 9V - 2A / 12V - 1.5A (18W max)
      USB-C (In) 5V - 2.4A / 9V - 3A / 12V - 2.5A / 15V - 2A / 20V - 1.5A (30W max)
  • Output: USB-C (Out1) 5V - 2.4A / 9V - 3A / 12V - 3A / 15V - 3A / 20V - 2.25A (45W max)
        USB-A (Out2/Out3) 5V - 2.4A / 9V - 2A / 12V - 1.5A
        Multi ports 5V - 3A (max)
  • IP Rating: IPX5
  • Dimensions: 136.3 mm x 60 mm x 21.4 mm / 5.37" x 2.36" x 0.84"
  • Weight: 324.5 g / 11.45 oz.
  • Accessories: USB charging cable (USB-A to USB-C)
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Nitecore NB20000 Power Bank

2 Reviews

5.0 Overall rating



Excellent! Small, lightweight and with me mainly using it to charge my phone it will last me days on a through-hike


Yes very prompt & professional


The Nitecore NB20000 is an ultra lightweight power bank made from carbon fibre. With a large capacity of 20,000mAh battery, the 'energy brick' is ideal for outdoor adventures that last a couple of days, with sufficient power for smartphones, laptops, tables and game consoles, plus outdoor activities and emergency equipment. 

The power bank has a carbon fibre reinforced polymer (CFRP) hollowed frame which offers high strength, minimal weight and excellent protection of the cell. 

In addition to the two-way PD and QC outputs, the NB20000 features a low current mode which is suitable for charging low current devices such as wireless headphones. 

The unit has a power level display which shows:

  • 4 lights when approx. 100% 
  • 3 lights when approx. 75%
  • 2 lights when approx. 50%
  • 1 light when approx. 25%
  • 1 flashing light when the power is nearly depleted

With the safety of Nitecore products and customers paramount to the power bank, the NB20000 has a range of safeguards including overcurrent protection, short circuit protection, over-discharge protection and thermal protection.

Please note, power banks are sent via UPS, with an earlier cut-off time of 2.30 pm for same day despatch (Monday - Friday). Due to high shipping costs, unfortunately we are unable to send power banks to the Outer Hebrides, Scottish Highlands and surrounding areas, Channel Islands and Northern Ireland.

We are unable to accept returned power banks once they have been opened.

The Nitecore NB20000 user manual can be downloaded here.