Nitecore Carbon Battery 6K USB-C 6000mAh Power Bank

I purchased two NPB1’s and a NPB2. All three worked well as far as specification but all exhibited the same failure mode! The casing cracks open at the assembly seam, exposing all the “water proof” internals. The NPB2, fell off my charging stand from a height of 24 inches on to. A hard floor, NO cable attached, NO other force except hitting the floor as I set other Battries’s up for charging. I attempted to test if the unit still work but I noted the weld between the charging board and the battery was NOT welded properly (no weld marks). since the purpose of buying the battery was for it IP rating, the broken casing defeated my purpose. One month later the NPB1 was noted broken at the same seam case point with the top completely disconnected. The using had been previously charged and safely located in my travel back pack. I eliminate the unit and didn’t note any issues or obvious broken wires. Plugged in the unit before glue the seam and it ALSO FAILED TO WORK!
The remaining NPB1. Separated at the same seam about two weeks past! The battery was attached by its support loop to my cell phone wrist loop, hanging in the shower by the cell phone wrist loop. I then notice the assembly of the battery had separated at the same seam. Testing indicates the battery worked so I glued it back together! Needless to state but I will, it’s evident quality control with this series of battery is missing some critical details!! Is this issue applicable to this product line as well? Note; I own several series of the note core EDC as well as tactical, plus power banks. I have only experienced one previous issue with a below purchased TINI2 from over heating causing one of the LEDs to stop working. I like it so well that I purchased another one and make sure I don’t use it in the high mode but for a short period. Otherwise I like your product but if quality is slipping, so is this customer reliability of the new product line in emergency situations. BTW, I didn’t want to get into a stressful situation about warrant and so forth. The units that failed to work, I just used the batteries in other projects. The remaining unit, pictured, I still use but not in the shower, it’s purpose! But works well.
Regards Adolphus McClanahan

I had an extra belt small flashlight case. I adapted it to this great little power bank. I wish Nightcore sold this with a belt case that could be carried along with a short charging cord Holder Incorporated into the case. However, it's size is very handy when carried on the belt or in your pocket. I'm showing a photo of my old case I used with a short 3-in power cord that hangs over the top of the battery not plugged in..

Very portable

Very light and full of power, great addition to your EDC.

I tested it out, and for 3 oz it recharged my small iphone SE (with a smaller battery than most phones) twice from 5% to 95%. Great for backpacking.

Got 2 of these to power/charge accessories on my gravel bike. GoPros, Wahoo Ace, phone, etc. These are awesome; small enough in diameter that they fit in CO2 cartridge holders. Shipping was timely and free; both arrived with 2/3 charge. Would definitely recommend.

I originally bought this for backpacking use due to size, weight and waterproof capability and the ability to recharge my phone (at least 1 full recharge) and potentially other small electronics like headlamps etc.

Unfortunately in a test with an iPhone 16 Pro, I began charging the phone with 10% remaining and not being used. It made it to 81% charged on the phone with a fully depleted battery pack. I also noticed that the battery pack got very hot to the touch and could have doubled as a hard warmer it got so hot. It says 6,000mah but that is not what you’re getting. If you read the specs more closely you’ll see “rated energy” at 3,200 mah which won’t charge most cell phones 1 time these days. For me, all I got was 71% back on my cell phone. To me, that’s not acceptable for my use case.

Unfortunately, returns to nitecore after product has incur restock and shipping charges and by the time it’s all said and done, you’d only get like $20 of the original $40 back… so I guess I’ll use it as a paper weight.

65-70% charge on Iphone

Will test in a few weeks in the outback.

Super compact and light. Pretty handy for SAR missions when youre looking to carry a couple light and packable battery backups

Great performance for the size and weight

nice form factor, lightweight, charges at a decent pace

I purchased this power bank for weekend traveling trips. The wife and I get to site seeing and end up spending a lot of time away from a power source. This power bank fills that void to help get me through the day.

I have been using an ace pro with the Nitecore battery 6k and it has been great, it lasts a very long time and even charges the camera while recording.

Great for travel. I bought this to charge my smart phone during travel delays when you get stuck in an airport for hours one end or really any emergency situation wherevI don't have convenient access to a/c power. It's not a fast charger but that's not the point of this device. It's fits it's intended purpose in a very compact light weight form factor. Very happy with my purchase.

Excelente

This power bank is lightweight, can be attached to multiple Nitecore headlamps with their optional kit and more than doubles run times!

Smallest 6K mah battery I know of. Pocket EDC.

Good power to weight ratio. Good design.

Perfect size and shape for upcoming trip the the Grand Ronde in Washington State. Can't have enough battery capacity whan in the wilds out of reach from people and services.

ordered several varieties of flashlights and charger packs. items were shipped out with no delays and received safely intact. as always I was pleased with my purchase. I’ve had issues and concerns with my items in the past, but have had excellent customer service support! will continue to purchase from Nite Core!