The Nitecore NPB4 power bank is equipped with 4 x next generation 21700 li-ion batteries with a capacity of 20,000mAh and an energy density of 193mWh/g.

Designed to be waterproof, the NPB4 offers a high strength O-ring on the charging port, advanced glue pouring technology to protect the internal components and fire retardant PC materials for tightness against water and vapour. 

The NPB4 has multiple fast charge output ports and provides a maximum output power of 18W. The power bank has sufficient power to charge your electronic devices, offering 6 charges for the iPhone 12, 32 charges for an AirPod charging case and 3 charges for a portable game console.

The Nitecore power bank has a touch sensor power level display which shows three lights when the charge level is approximately 100%, two lights for 70% and one for 30%.

To ensure safety and peace of mind, the NPB4 has multiple safeguards, including overcurrent protection, over-discharge protection, short circuit protection and more. 

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 NPB4 user manual can be downloaded here.