Nitecore NPB1 Waterproof 5000mAh Power Bank

£39.95 Please note this product has selling restrictions to your country. was
Manufacturer : 
SJS Cycles part number : 
Manufacturer part number : 
- Battery Type: 21700 Li-Ion battery
- Capacity: 5,000mAh 3.64V (18.2Wh)
- Rated Energy: 3,200mAh 5V (TYP 1A)
- Input: Micro-USB 5V-2A
- Output: USB-A: 5V-2.4A 9V-2A (18W Max)
- IP Rating: IP68
- Dimensions: 26.9mm Diameter x 102.4mm Length (1.06 x 4.03 inch)
- Weight: 105g (3.7oz)
- Accessories: USB Charging cable

IP68 Rated. 2m Submersible. Fearless of the complex outdoor environment. With an outstanding water and dust resistance, the NPB1 remains unaffected after 2-metre underwater submission for 30 minutes, perfect for caving, trail running, maintenance checks and more.

Premium Waterproof Design
- High strength waterproof O-ring on the charging port
- Advanced glue pouring technology to ensure a waterproof environment for components
- Fire retardent PC materials constructed shell by ultrasonic welding technology to offer extreme tightness against water and vapor

1m Impact Resistant
- The solid housing constructed by the lightweight and fire retardent PC materials has an excellent high temperature, scratch and impact resistance to guarantee a long lifespan.

Withstands an extremely low temperature of -10 degrees celcius (14 degrees Fahrenheit)

Next Generation 21700 Li-Ion Batteries
- Featuring long lifespan, high energy density and powerful performance, 21700 Li-Ion batteries were first introduced in the electric car industry and are considered to be the future of cylindrical batteres.
- Equipped with a 5,000mAh 21700 Li-Ion battery, the NPB1 has an enery density of 173mWh/g

Ultra Compact and Lightweight
- Highly portable to be stored in a backpack or a pocket

QC 3.0 Output
- The most common Micro-USB and USB-A design makes the charing process incredibly convenient with a max output of 18W

- Sufficient power for smartphones, GPS, headlamps, headphones and more
- iPhone 11 = 1 Charge

Touch Sensor Power Level Display
- Tap the Touch Icon, and the blue indicators beside the input port will be turned on to display the power level
- 3 Indicators = Approx 100%
- 2 Indicators = Approx 70%
- 1 Indicator = Approx 30%

Multiple Protection Safeguards
- Overcurrent protection
- Short-circuit protection
- Over-discharge protection
- Overcharge protection
- Overvoltage protection
- Thermal protection

Airline Approved Power
- In accord with the UN38.3 Standard with a rated capacity less than 100Wh, the NPB1 can be your best worry-free power companion while on the move.
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Questions & Answers (4)
Can this be charged using the Busch & Muller e-werk via a Shimano DH3-N72 dynamo hub??
16 Apr 2024
Ideally I would purchase a B&M cache battery but they're unavailable right now.
Yes this will charge using the E-werk. SK 19/04/24
Does this work as a buffer battery?
13 Jun 2022
I have a SON hub Sinewave Beacon - has anyone used this as buffer/cache battery to power eg a phone when stopped.
Yes this will work fine for this.

JK 14.06.22
How does pass through charging work?
18 Jan 2021
Q.C output is not supported while the NPB1 is being charged, the NPB1 input is 5V/2A, so while during being charged, the max output from the NPB1 is 5V.

For the pass-through charging, the NPB1 is sending the input power to the connected device first, then charge itself.

If the input for the NPB1 is sufficient, it will charge the outer device and the power bank simultaneously.

It’s important to note that a battery can’t charge or discharge at the exact same time. It’s impossible for it to do something like this because the current only moves in one direction at a time.This means the power bank is not actually being charged while replenishing a connected device simultaneously.

What actually happens is quite similar to connecting a phone to a wall charger. The very first thing that happens when you do this is that the phone will switch to be being powered by the charger. Otherwise, it wouldn’t be able to replenish the battery. What happens to the battery solely depends on how much energy is available from the charger and the power needed by the phone.
What is the minimum charging input?
11 Jan 2021
In the manual, the power input for NPB1 is 5V/2A, which is the maximum input.

If you use lower input power, it still works, only will take longer time to charge it.