Handy and compact. Fast charging for its size. 👍🏻
20,000mAh of fast outdoor power, in a 320g carbon fibre shell.
Nitecore's flagship outdoor power bank. Built for trekking, photography, drone work, and travel days where wall outlets aren't an option.
- 67.5Wh usable energy
- 65W input and output via two USB-C ports
- IPX8 rated, 2m submersible
- Real-time battery percentage display
- Nine-circuit safety system
- Available in Neon Orange and Ice Blue
Built for the days when wall power isn't an option.
Trekking routes that go past the last hut. Photography days that stretch from blue hour to blue hour. Stream canyons, drone runs, long-haul flights. The CARBO 20 is engineered for outdoor and travel use first, then specced to keep up with the gear professionals actually carry: USB-C laptops, mirrorless cameras, drones, phones.
What you get for the form factor:
FOUR REASONS THIS STANDS OUT
More Usable Energy from the Same Pack
67.5Wh of usable energy out of the 20,000mAh cell capacity. The active balancing BMS keeps individual cells in sync through discharge so less energy is lost to cell mismatch.
Recharges at Laptop-Charger Speed
Many power banks output fast but recharge slowly. Plug a USB-C laptop charger into IN/OUT1 and the CARBO 20 refills at full input rate, not an 18W trickle.
18V Architecture, Not 5V or 12V
Most power banks run a low-voltage cell stack and step output up. The CARBO 20 uses an 18V high-voltage platform, which lowers current at the same wattage and reduces conversion losses and heat under high-power output.
Globally Insured, Flight Certified
UN38.3 compliant for cabin baggage on commercial flights worldwide. Total energy sits well under the 100Wh airline limit, with multiple international certifications and global insurance coverage.
242.5mWh per gram. Built lighter from the inside out.
UNIBODY CARBON FIBRE SHELL - The shell weighs just 22.3 grams, roughly 67% lighter than a plastic shell of similar strength. The fibre structure provides the rigidity to absorb impacts while keeping the cell area protected.
MAGNESIUM ALLOY HONEYCOMB HEAT SINKS - The dual heat sinks weigh 10.94 grams together, roughly 38% lighter than aluminium heat sinks of similar volume. Magnesium dissipates heat efficiently while keeping overall weight down.
Combined energy density works out to 242.5mWh per gram, which is high for a power bank in this capacity tier and form factor.
65W output that holds, not just peaks.
18V HIGH-VOLTAGE PLATFORM - The internal platform runs at 18V rather than the 5V or 12V used in most power banks. Higher voltage means lower current at the same wattage, which reduces conversion losses and heat generation during high-power output.
ACTIVE BALANCING BMS - The battery management system keeps individual cells in sync through discharge. Less energy is lost to cell mismatch, which means more of the stored capacity reaches your devices.
SUSTAINED FULL OUTPUT FOR OVER 55 MINUTES - The honeycomb heat sinks pull heat away from the cells, with an embedded MCU and dual NTC thermistors tracking temperature in real time. Full output runs for over 55 minutes at 26°C ambient, then steps down to 20W until the battery depletes.
What this means in practice: charging a USB-C laptop at full speed for the entire battery cycle of one ThinkPad, or topping up multiple cameras and drones during a long shoot, with the power bank holding its full output throughout.
The information layer.
INTELLIGENT DISPLAY SCREEN - The front-mounted screen shows battery percentage and charging status in real time. Tap to wake it; the screen turns off automatically to conserve power. Plan a multi-day trip around 73% remaining instead of guessing from indicator dots.
PORT LAYOUT - IN/OUT1 (the orange port) supports both input and output. OUT2 is output-only. Use both together to charge a phone and earbuds simultaneously, with total output shared between the two devices.
PASS-THROUGH CHARGING - Plug a wall charger into IN/OUT1 and your phone into OUT2. The power bank tops itself up while charging your device. One outlet, one cable to the wall, all your gear charged by morning.
FAST CHARGING PROTOCOLS - Power Delivery (PD), Quick Charge 3.0 (QC3.0), and Super Charge Protocol (SCP) cover most modern phones, laptops, tablets, and accessories.
Submersible to 2 metres. Built for wet conditions.
The IPX8 rating is the strongest waterproof grade in consumer electronics. Multiple layers of seal protect the unit from water entry at every junction, including the USB-C ports.
WHAT THIS MEANS IN PRACTICE - Drop it in a stream during a river crossing. Charge a phone in heavy rain. Wash mud off it under the tap. Take it kayaking, paddling, or down into a slot canyon. The unit keeps working through all of it.
Nine layers of safety protection. Globally certified.
The CARBO 20 includes a full suite of safety circuits to protect both the unit and your devices:
- Intelligent Thermal Protection - shuts down output if internal temperatures exceed safe range
- Touch Button Protection - prevents accidental activation in a packed bag
- Optimised Charge/Discharge Efficiency - reduces energy waste during conversion
- Accurate Power Indication - matches the readout to actual remaining capacity
- Overcurrent Protection - cuts off if a connected device draws more current than rated
- Short-Circuit Protection - immediate shutoff if a port short occurs
- Over-discharge Protection - protects internal cells from running down to damage levels
- Overcharge Protection - stops charging when cells reach full capacity
- Overvoltage Protection - blocks input voltage spikes from damaging internal circuits
UN38.3 CERTIFIED FOR FLIGHT - Approved for cabin baggage on commercial flights worldwide.
Two colour options.
NEON ORANGE - High visibility, easy to spot in a packed bag or on the ground at dusk.
ICE BLUE - Cooler tone for a quieter aesthetic.
Both share identical internals. The colour shows in the heat-sink material on the top of the unit.
DISCHARGE CURVE
| DURATION | OUTPUT |
| 0–55 minutes | 65W (sustained) |
| 55–102 minutes | 20W (until depleted) |
*Tested at 26°C / 79°F ambient. Performance may vary in real-world conditions and at different temperatures.
TECHNICAL SPECIFICATIONS
| Capacity | 20,000mAh / 67.5Wh |
| Max Input | 65W (via IN/OUT1) |
| Max Output | 65W |
| Ports | 2x USB-C (1 In/Out, 1 Out) |
| Charging Protocols | PD, QC3.0, SCP |
| Pass-through Charging | Supported |
| Weight | 320g / 11.29 oz |
| Shell Material | Unibody Carbon Fibre |
| IP Rating | IPX8 (2m submersible) |
| Certifications | UN38.3, multiple international certifications |
| Available Colours | Neon Orange, Ice Blue |
FREQUENTLY ASKED QUESTIONS
Will the CARBO 20 charge a MacBook Air or other USB-C laptop?
Yes. The 65W output supports Power Delivery, which covers most USB-C laptops including MacBook Air, MacBook Pro 13", Dell XPS 13, and similar machines. For MacBook Pro 14"/16" or higher-wattage laptops, you'll get charging but slower than the original wall adapter.
Is it allowed in carry-on luggage on commercial flights?
Yes. The 67.5Wh usable energy sits below the 100Wh airline limit common across international carriers, and the unit is UN38.3 certified. Always confirm with your specific airline before flying, as some have stricter local rules.
How long does it deliver full 65W output before slowing down?
Over 55 minutes of continuous 65W output at 26°C (79°F) ambient temperature, then it transitions to 20W output until the battery depletes. Hotter ambient temperatures may shorten this duration.
Can I charge two devices at the same time?
Yes. Plug into both USB-C ports for simultaneous charging. The total 65W output is shared between the two devices, with the unit allocating power based on each device's requirements.
Can I use the power bank while it's recharging from the wall?
Yes. Plug the wall charger into IN/OUT1 (the orange port) and your device into OUT2. The power bank charges itself and your device at the same time, useful for overnight charging from a single wall outlet.
You’re Backed by Our 60-Day Ironclad Guarantee
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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.
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.
Modern look with firmly interaction. Good choice for me
Light and convenient to carry around.
Good product. Love it !
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.
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.
very small and light. can charge my phone twice which will get me through 50k no worries
Order received within 36 hours. Item was well packed although there were some damages ro the box. Hopefully able to last long.
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
Finally a powerbank that I feel safe to use in weather. Looking forward to my next ultras.
Love the power bank
Sleek and compact design. Excellent
Love the weight and compactness. Charging time is reasonable
Very compact and lightweight to carry around.
Build quality:Well made Weight:Power bank impressively light Charging speed:Have not try
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 !
Love its compact size, that fit the small pouch perfectly.
waited for quite sometime for this and it was worth it. light and reliable.
Bought this light weight powerbank for a friend who love travel as a gift.
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.
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
Lighter but works similar to my current power bank. Loves it!
Super light and delivery was quick!
Build quality:Good Weight:Lightweight Charging speed:Fast charge Simple, no-fuss design. One port, straightforward operation—nothing complicated, which many users appreciate
The Gen4 NB10,000 by far exceeded expectations with lightness, compact barely felt any weight. Good for standby, emergency situation arises
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.
Best Feature(s):Ultra-light, durable and waterproof. Product Quality:Great for hikers. Value For Money:A bit expensive but worth to have it.
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
Super fast delivery, great item
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.
Weight:feels good Build quality:well build
Weight:feels like and easy to carry Build quality:sturdy, well built and thinner than what I expected
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.
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
Really love the size and most importantly, the weight. Ideal to carry around for my emergency power needs!!!
Value For Money:good Product Quality:great Best Feature(s):lightweight and sturdy
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.
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.
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
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