The World's Lightest and Strongest 20,000mAh Powerbank. QC 18W Input, PD 20W Output.
Tough unibody carbon shell withstands drops and crushing impact.
20,000mAh capacity, airline approved
Carbon fiber reinforced polymer (CFRP) shell for incredible strength
Dual output USB-A 18W and USB-C 20W
LED power indicator
One touch low current mode for delicate electronics
34% lighter than conventional 20,00.mAh power banks
IPX5 rated weatherproof
Designed with cutting-edge carbon fiber technology, this energy brick is your ultimate companion for on-the-go charging.
CARBON CONSTRUCTION - Carbon fiber reinforced polymer (CFRP) is widely used in aerospace and automotive engineering. Lightweight with high strength, it gives excellent impact and vibration protection for the battery cell.
HIGH DENSITY = SLIM AND COMPACT - High-density battery packs more power in a smaller size, giving you a power bank that's slimmer, lighter, and smaller than anything else on the market today.
USB-A + USB-C OUTPUT WITH QUICK CHARGE - Dual QC ports allow you to fast charge two devices at once with maximum compatibility. When the quick charge is not needed, the powerbank has a one-touch low current mode for delicate devices such as Bluetooth headphones and smartwatches.
AIRLINE APPROVED - In accordance with the UN38.3 Standard, a rated capacity of less than 100Wg, the Carbo 20K is your best worry-free travel companion. It's discreet and fits nicely in your carry on bag.
Are you still using thick and heavy powerbanks to charge your gear?
Imagine one at half the thickness and half the weight.
Then remove everything metal and replace it with super light, impact-absorbing carbon fiber.
Slap a super slim 20,000mAh battery in there. Max out the charging speeds at 3A. Add industry-standard USB-C and USB-A ports and you have the new Carbo20K.
A new kind of energy brick designed to be light, weatherproof, and airplane safe. You can even go trail running with it to keep all your GPS and headlamps charged for those long ultra-marathons.
Carbon fiber also absorbs micro-vibrations, so you'll have uninterrupted charging no matter how you jump, run, or tumble.
If you've been looking for an upgrade to your clunky old power bank, this is the best power bank out there.
CHARGING ABILITY
Device
Number of Charges
IPhone 13 Pro
4.6
Huawei P50
3.1
Nitecore UT27 Headlamp
12
Nitecore 3500mAh Battery
4.5
*RECOMMENDED CABLES
If you're charging remember to use 2A rated and above cables, many clients use cheap 0.5A or 1A cables and wonder why their devices don't get charged.
Try it for 60 days. If it’s not right for you, send it back.
We stand behind our gear. If you’re not happy with your purchase, just return the full package within 60 days and we’ll issue a full refund—no fuss, no forms, no hoops to jump through.
What Happens After You Order
You’ll get an instant order confirmation email with your receipt.
We’ll pack your order the next working day and send you a tracking number once it’s on the way.
From the moment you order to the moment it reaches your hands, we’re here to keep you updated and supported.
When will I receive my gear?
Singapore: Delivered to your doorstep in 4–6 working days.
International: Arrive within 10–14 working days.
Returns and warranty
Every product comes with a 1 to 3-year replacement warranty (depending on the item).
If anything isn’t working right, just let us know. We’ll make it right.
FREE Gift with Purchase: Limited Edition Ember Shard Whistle
Spend $99 or more today, and we'll automatically include a limited-edition Glow-in-the-Dark Ember Shard Whistle when packing your order.
Charge it quickly under sunlight or your flashlight, and enjoy its subtle glow throughout the night—perfect for marking gear, emergency kits, or attaching to your bag.
Limited quantities. These will be swapped (at our discretion) to other gift items if shards are unavailable.
Customer Reviews
Overall rating: 4.9 / 5 from 399 reviews.
Handy and compact. Fast charging for its size. 👍🏻
Janice T.5/5Verified
Item was quickly shipped and received within 2 days.
Had a little issue when i received it, but the CS was very prompt to resolve the issue, i appreciate the quick action & help of the CS. Thanks, good job.
I strongly recommend to buy Nitecore NB Air if there is a need for a light weight powerbank to carry around, the light weight made a difference for me.
Thanks Nitecore.
Chriz K.5/5Verified
Modern look with firmly interaction. Good choice for me
Huy C.5/5Verified
Light and convenient to carry around.
Raymond N.5/5Verified
Good product. Love it !
Micheal S.5/5Verified
The Nitecore NB10000 Gen 4 is an incredibly sleek and compact power bank. Its carbon-fibre casing makes it extremely lightweight, and the built-in USB-C cable cleverly doubles as a lanyard. The illuminated ports are a cool and practical touch, making it easy to connect your device even in the dark. The surface also seems quite scratch-resistant so far. It provides roughly 1.5x full charges for my iPhone 16 Pro Max, which is impressive for something this small and light. Definitely worth the money.
Benson T.5/5Verified
Extremely small and light. Doesn't even look like a power bank. I bought it because of its compact size and its aesthetics fitted with a carbon fiber case.
It can charge my iPhone 16 pro from 7% to 80ish% within an hour. And it can be used two times before it’s completely drained.
Down side is the cost. It’s a-bit pricey I would say but totally worth it.
Highly recommended.
Shamraj N.5/5Verified
very small and light. can charge my phone twice which will get me through 50k no worries
Evan D.5/5Verified
Order received within 36 hours. Item was well packed although there were some damages ro the box. Hopefully able to last long.
Aero_x35/5
Product Quality:looks good, should be authentic Best Feature(s):lightweight af Value For Money:absolutely not, but it's fancy Delivery was quick. Product looks and feels pretty good, lights and lanyard are a nice touch. Dont know why they market it as CARBON FIBRE SHELL. It's clearly just the sticker lol
Aiverntan5/5
Finally a powerbank that I feel safe to use in weather. Looking forward to my next ultras.
Sahni M.5/5Verified
Love the power bank
Luke H.5/5Verified
Sleek and compact design. Excellent
Benjie L.5/5Verified
Love the weight and compactness. Charging time is reasonable
Arabella W.5/5Verified
Very compact and lightweight to carry around.
Sin Y.5/5Verified
Build quality:Well made Weight:Power bank impressively light Charging speed:Have not try
Didanaimah5/5
yet another good solid product from Nitecore :) I have a good selection of Nitecore's flashtlights , batteries accessories from my prevous purchases :) they never fail to deliver!! Good job !
Samuel W.5/5Verified
Love its compact size, that fit the small pouch perfectly.
R.5/5Verified
waited for quite sometime for this and it was worth it. light and reliable.
Nicholas L.5/5Verified
Bought this light weight powerbank for a friend who love travel as a gift.
Kalai V.5/5Verified
It is incredibly light and compact. As compared to my Apple magnetic charger as shown here, it is just slightly longer but everything else is better. Can charge my iPhone 14 Pro Max faster too. I’ll be switching to daily-ing this instead.
Yu Sheng L.5/5Verified
Not the fastest (Output = 18W), nor the most powerful (rated power = 3300mAh) but perfect as my day out ultralight minimalist carry.
Uses a 3.88V high-voltage Li-ion battery compared to the typical 3.6V one found elsewhere. They're likely more expensive (?) but this allows the battery to stay thin and small
Can be found elsewhere at less than half the asking price ($31/RM98), maybe even lower? You might lose the local warranty (why do you need one for a cheap powerbank?) but you'll gain the 3C certification that'll allow you to bring this battery into plane/train when you're in China.
Buy this for portability, not for power users
Ts4/5
Lighter but works similar to my current power bank. Loves it!
Jailani M.5/5Verified
Super light and delivery was quick!
Joshua K.5/5Verified
Build quality:Good Weight:Lightweight Charging speed:Fast charge Simple, no-fuss design. One port, straightforward operation—nothing complicated, which many users appreciate
Sagitteric5/5
The Gen4 NB10,000 by far exceeded expectations with lightness, compact barely felt any weight. Good for standby, emergency situation arises
Ian S.5/5Verified
Is very light, the lightest 10kmah I’ve ever seen. The touch swipe to turn on is cool! But I wish there’s additional wireless magnetic charge feature added on this power bank will make it the best of the best.
Tang R.5/5Verified
Best Feature(s):Ultra-light, durable and waterproof. Product Quality:Great for hikers. Value For Money:A bit expensive but worth to have it.
Yenmike3155/5
My NITECORE NB Plus – I took it with me on my travel recently. In between rest and sightseeing I tried out
and charged my iPhone. It works perfectly, in lesser time than I expected and no fuss about. My iPhone’s outdoor companion!
Brgds Ray C
Thurs, 26Feb2026
Raymond C.5/5Verified
Super fast delivery, great item
Mustakjm V.5/5Verified
Placed order on 7th Feb and received on 11th Feb. [It was supposed to ba a 3-wk pre-order].
So it's a very present surprise to receive it so soon.
Everything working as described.
Fast charging, small/compact form that easily replaced all my other 10k mah power banks.
Leon L.5/5Verified
Weight:feels good Build quality:well build
Mdzh715/5
Weight:feels like and easy to carry Build quality:sturdy, well built and thinner than what I expected
Acidfunky5/5
Best Feature(s):small and light Product Quality:good Value For Money:expensive High cost but the size and quality cause it to be of that price.
Dominqueang5/5
Value For Money:Good Product Quality:Good Best Feature(s):light Just received the powerbank, light. Not much difference between nb1000 and NB plus. Fast delivery
Ongkcdarren5/5
Really love the size and most importantly, the weight. Ideal to carry around for my emergency power needs!!!
M.5/5Verified
Value For Money:good Product Quality:great Best Feature(s):lightweight and sturdy
52ngzyw6ws5/5
Build quality:strong case and good quality Weight:lightweight and travel Charging speed:fast charging Received in good condition. 5k power bank lightweight and feel comfortable carry for travel.
Cfcheah55/5
Product Quality:good quality Best Feature(s):good feature Value For Money:worth for money Received in good condition. Slim and lightweight power bank with 10k. Convenient bring out for travel.
Cfcheah55/5
Product Quality:one of e best, carbon fiber shell Value For Money:not really Best Feature(s):lightweight n handy Item was delivered within 3 days. This is e latest version, 10000mah, type C n USB charging output. Rounded casing corners for better hold