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Nitecore NB10000 Gen 2
#1 — Best Ultralight

Nitecore NB10000 Gen 2 Review (2026)

6.2oz, carbon fiber, 10,000mAh -- the lightest quality power bank for backpacking

★★★★★
9.0/10
Reviewed by William • Updated May 2026 $65

The Nitecore NB10000 Gen 2 is the power bank for ultralight hikers who need phone charging without carrying a brick. At 6.2oz for 10,000mAh it is lighter than any comparable-capacity bank tested. Carbon fiber composite housing is lighter than aluminum and more durable than plastic. USB-C at 22.5W means fast charging both directions. For 3-day trips keeping one phone alive, 6.2oz is a real ultralight achievement.

Check current price →
$65 retail
TrailCraft Score

What I Liked

  • 6.2oz -- lightest quality 10,000mAh power bank tested
  • Carbon fiber composite housing
  • USB-C 22.5W fast charging both directions
  • Compact: 5.7 x 2.7 x 0.5 inches

Limitations

  • $65 -- more expensive per mAh than Anker
  • 10,000mAh limits to 3-day single-device trips
  • Nitecore harder to find locally than Anker

At a Glance

Capacity10,000mAh / 37Wh
Weight6.2oz / 176g
InputUSB-C 22.5W
OutputUSB-C 22.5W and USB-A 18W
HousingCarbon fiber composite
Dimensions5.7 x 2.7 x 0.5 inches
WarrantyNitecore 2-year

Score Breakdown

Weight per mAh
10.0
Build Quality
9.2
Charging Speed
9.0
Value for Money
8.4
Capacity
8.0

Field Notes

4-day AT section keeping a Garmin inReach and a Pixel phone charged. 10,000mAh covered the trip with 20 percent remaining. 6.2oz in the pack -- comparable to an empty Nalgene half-inch thick. Carbon fiber held up to drops on rocky terrain.

6.2oz, carbon fiber, 10,000mAh -- proof a power bank does not have to weigh as much as your stove

Who This Is For

The Nitecore NB10000 Gen 2 is right for: ultralight backpackers who need phone charging, AT section hikers keeping one device alive 3 to 4 days, and anyone frustrated by heavy power banks.

Note: Prices are current as of May 2026. Some links are affiliate links.

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Common Questions

How many times does the Nitecore NB10000 charge a phone?
10,000mAh nominal equals about 7,000mAh real after efficiency losses. A modern smartphone with 4,000mAh battery charges approximately 1.75 times.
Nitecore vs Anker for camping?
Nitecore (9.0/10): 6.2oz, lighter, faster charging. Anker PowerCore 26800 (8.9/10): 26,800mAh, much more capacity, $70. Backpacking: Nitecore. Car camping: Anker.