Everyday Carry

NITECORE NB10000 Gen 2 Power Bank

The listing puts this 10000mAh bank at 5.29 ounces and 0.42 inches thick, so the weight is the argument here, not the capacity.

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$59.95
Mike ManningBy Mike Manning
Marine veteran, gym owner, dad
Recon Report: full review pendingPhotos: NITECOREUpdated 2026-09-14
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NITECORE NB10000 Gen 2 Power Bank

Quick Specs

Price$59.95
CategoryEveryday Carry
BrandLonghorn Tactical
ReviewedSep 14, 2026
Price$59.95
ModelNITECORE NB10000 Gen 2, QC USB and USB-C dual port
Capacity10000mAh cell capacity, 38.5Wh
Size and weight4.8 in x 2.32 in x 0.42 in, 5.29 oz, as listed
InputUSB-C: 5V-2.4A / 9V-2A
Output 1USB-C: 5V-3A / 9V-2.22A / 12V-1.68A
Output 2USB-A: 5V-3A / 9V-2A / 12V-1.5A
Simultaneous chargingListed as dual USB and USB-C QC output ports, two devices at once. Manufacturer claim, untested here
Water resistanceListed IPX5 water resistant. Jets only, not submersion, and no dust rating
BodyNitecore lists a solid carbon fiber body frame
ProtectionListed against short-circuit, overcharge, over discharge, overheat
In the boxPower bank and one USB-A to USB-C cable. No wall adapter and no USB-C to USB-C cable
Recharge timeNot stated anywhere on the listing
Pass-through and low current modeNot addressed on the listing
WarrantyNo length stated on this page. Longhorn handles Nitecore warranty service directly and requires a Longhorn invoice or receipt
AvailabilityUnverified. The page showed a backorder notice while the store product data showed it available
How I got itNot in hand. Overview written from the published product page. Hands-on review pending

What I Like

  • Listed at 5.29 ounces and 0.42 inches thick, which is the only real reason to pay this much for 10000mAh
  • The listing breaks out every rail by voltage and amperage, USB-C at 5V-3A / 9V-2.22A / 12V-1.68A and USB-A at 5V-3A / 9V-2A / 12V-1.5A, which is more detail than most retail pages give you
  • Nitecore lists both ports running at once for two devices at the same time. Manufacturer claim, not something I have tested
  • Longhorn handles Nitecore warranty service itself instead of sending you to the manufacturer, as long as you keep the Longhorn invoice or receipt

What I Don't

  • The two full charges claim is benchmarked against an iPhone 11 and a Samsung S10, phones from 2019, and the page gives no figure for any current phone
  • No rated output capacity, no conversion efficiency, and no recharge time for the bank itself appear anywhere on the listing
  • $59.95 for 10000mAh is a real premium over commodity banks of the same capacity, so you are buying the 5.29 ounces, not the milliamp hours
  • The box holds the bank and a USB-A to USB-C cable only. No wall adapter, and no USB-C to USB-C cable, which is the cable most people need for the faster input
  • The page says nothing about pass-through charging or a low current mode for earbuds and watches, and stock status is unverified

Ground rule first. This is a recon report, not a review. I have never had this power bank in my hand. Everything below is read off the published product page at Longhorn Tactical. The full review comes after I have carried one.

The Spec Read

The listing calls this a 10000mAh bank rated at 38.5Wh. Dimensions are 4.8 by 2.32 by 0.42 inches, and the weight is listed at 5.29 ounces. The thickness is the number that matters: under half an inch is the difference between a pocket and a bag.

Nitecore claims a solid carbon fiber body frame that makes it 40 percent lighter than conventional power banks, and smaller and thinner than a phone. That claim names no comparison product and cites no test, so file it as marketing, not a measurement.

The electrical table is unusually specific for a retail page. Input over USB-C is listed at 5V-2.4A / 9V-2A. The USB-C output is listed at 5V-3A / 9V-2.22A / 12V-1.68A, and the USB-A output at 5V-3A / 9V-2A / 12V-1.5A. Nitecore says both ports run at the same time and charge two devices simultaneously, which I have not tested. The listing title and the copy both say QC, but no Quick Charge version number appears anywhere on the page, so I cannot tell you which one.

The page lists IPX5, which is water jets. Not submersion, and no dust rating, so do not call it waterproof. Protection is listed against short-circuit, overcharge, over discharge, and overheat.

Who It Is For

The dad who already carries a light and wants the kit to survive a weekend away from a wall outlet. 5.29 listed ounces in a front pocket is the whole case for spending this much. If the bank is going in a bag anyway, buy a cheaper one.

Two gaps going in. The box holds the bank and a USB-A to USB-C cable. No wall adapter, and no USB-C to USB-C cable, which is what most people need to hit the faster input. The page also says nothing about pass-through charging or a low current mode for earbuds and watches. Those are the first two questions I would ask.

Building from scratch, start with the best EDC for dads guide. If you already carry a rechargeable Olight Baton 4, a USB bank is the piece that keeps it fed away from home.

The Honest Math

The capacity number needs a haircut. 10000mAh is cell capacity at 3.7 volts, and the 38.5Wh rating confirms it. What comes out of the port at 5 volts is meaningfully lower. The listing publishes no rated output capacity and no conversion efficiency, so I cannot give you the delivered number, and anybody telling you that you get 10000mAh out of this is wrong. The two full charges claim is aimed at an iPhone 11 and a Samsung S10, both 2019 phones, so do not carry that math to whatever is in your pocket now.

No recharge time for the bank itself is published anywhere on the page, which is a real omission given that modest input. Stock status is unverified too: the page showed a backorder notice while the store product data said available.

One honest reason to buy it here. Longhorn handles Nitecore warranty service directly rather than pointing you at the manufacturer, and they want a Longhorn invoice or receipt, so keep it. No warranty length is stated on the page.

Get it at Longhorn Tactical

Every Dad Carry uses affiliate links and may earn a commission on purchases made through them, at no extra cost to you. This overview was written from the published product page and published ahead of any hands-on testing, so it is not a verdict.

After Action Report

On paper this is the rare 10000mAh bank light enough and thin enough to carry every day, and Longhorn is the right store for it because they handle Nitecore warranty service in house. What the page does not give you is delivered capacity, efficiency, or recharge time, so the price needs an honest look. The verdict waits until I have one in hand.

Mike Manning

MIKE MANNING

Founder, Every Dad Carry

Dad | Coach | Marine Corps Veteran

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NITECORE NB10000 Gen 2 Power Bank: $59.95

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