The UGREEN 100W power bank promises what most 20,000mAh banks can’t deliver: enough output to charge a laptop at close to full speed, not just keep it ticking over. The UGREEN Nexode Power Bank 20000mAh 100W pairs a single 100W USB-C port with a 72Wh cell that stays inside airline carry-on rules, and it ships with a 240W cable. Every performance figure below comes from independent measured testing, not a spec sheet.
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Key Takeaways
UGREEN Nexode 100W 20K
Power Output
True 100W from the main USB-C port. Trusted Reviews measured 98W into a Galaxy Book 3 laptop.
Ports and Cable
Two USB-C and one USB-A. No built-in cable, but a high-quality 240W USB-C cable and a pouch are in the box.
Airline Status
Rated 72Wh, comfortably under the 100Wh carry-on limit, so it travels in hand luggage.
Multi-device
The main port eases to around 60W once a second device is plugged in, with the rest shared across the other two ports.
Independent Testing
Trusted Reviews logged 81.4% efficiency. MacRumors charged an M3 MacBook Air to full in about an hour.
Recharge Speed
Takes up to 65W in. Back to 50% in about 50 minutes, full in roughly 99 minutes (Trusted Reviews).
Quick specs
| Capacity | 20,000mAh (72Wh) |
| Max output | 100W (USB-C1) |
| Ports | 2x USB-C, 1x USB-A |
| Weight | 420g |
| Dimensions | 139 x 80 x 26.5mm |
| Airline status | Carry-on approved (under 100Wh) |
Specs confirmed against the UGREEN UK and Amazon UK listings for SKU 25188. Performance figures come from independent testing by Trusted Reviews and MacRumors.
First impressions
Out of the box, the Nexode 100W reads as a serious laptop bank, not a pocket topper. It’s a dense, square-edged block at 420g, closer to a small hardback than a phone charger. The matte shell picks up scuffs more readily than the brushed finishes on some rivals, something Trusted Reviews also flagged. A simple LED readout on the front shows a rough charge level, four dots rather than the precise percentage screen UGREEN reserves for its pricier Nexode models.
What lifts the first impression is the kit in the box. UGREEN bundles a braided 240W USB-C cable rated well beyond anything this bank will draw, plus a soft travel pouch and a manual. There’s no cable built into the body, so that included lead is the one you’ll carry.
Design and build
The Nexode 100W measures 139 x 80 x 26.5mm and weighs 420g, putting it mid-pack for the 20,000mAh laptop class. Inside are 21700 lithium-ion cells, the larger high-density format you want for sustained high-wattage output. The port layout is two USB-C and one USB-A along the top edge: USB-C1 is the 100W input and output port, USB-C2 tops out at 30W, and the USB-A handles up to 22.5W.
UGREEN specifies UL94 V-0 flame-retardant housing and a full protection suite covering over-voltage, over-current, over-charge, over-discharge, high temperature and short circuits. The four-dot LED is basic but legible. There’s no kickstand and no smart display, both reserved for the higher-output Nexode variants.
Charging performance
The headline holds up. Independent testing by Trusted Reviews measured over 98W from the main USB-C port while charging a Samsung Galaxy Book 3 set to a 100W ceiling, about as close to the rated figure as you’ll realistically see once cable and conversion losses are counted. That’s genuine laptop-grade output, not the 30W to 45W trickle that many 20,000mAh banks quietly cap at.
MacRumors ran the everyday laptop and phone tests. An M3 MacBook Air 13-inch went from 10% to 50% in around 25 minutes and from 10% to full in about an hour, leaving roughly 10% in the bank afterwards. An iPhone 15 Pro reached about 60% in 30 minutes and full in under an hour, and the remaining capacity could refill that iPhone from near empty more than twice. So the practical picture is one full laptop charge with a little headroom, or two-plus phone refills.
Efficiency is a strong point. Trusted Reviews logged 76.01Wh going in and 61.93Wh coming out, a measured 81.4% round-trip, which is good for a bank pushing this much power. UGREEN doesn’t publish a surface temperature and no independent outlet recorded one, so we’re not quoting heat figures we can’t stand behind.
Multi-device behaviour is the main caveat. The moment a second device is connected, the main port eases from 100W to around 60W, with the secondary USB-C and USB-A then sharing roughly 20W between them. In Trusted Reviews’ all-three-port test, the USB-A delivered about 7W and the second USB-C just over 14W. It’s a one-fast-device bank that can keep a phone and earbuds topped up on the side, not a true three-laptop hub.
Pass-through charging
The Nexode 100W supports pass-through, meaning it can charge a connected device while the bank itself is being recharged from the wall. MacRumors confirmed this in use, which makes it handy as an overnight desk hub: leave it plugged in, charge your phone or laptop off it, and the bank tops itself back up in the background. Because the input is capped at 65W, expect the bank’s own refill to slow while it’s also feeding a device, so for the fastest top-up, recharge it on its own.
Portability and travel use
At 420g and 26.5mm thick, this is a laptop-bag or jacket-pocket power bank, not a jeans-pocket one. That weight is the trade-off for genuine 100W output and a 20,000mAh cell, and it’s in line with rivals in the class rather than unusually heavy. The included pouch keeps the scuff-prone shell and the 240W cable together in a bag, which is more useful than it sounds on a travel day.
For air travel, the 72Wh rating is the number that matters, and it sits well inside the limits.
✈️Airline carry-on
At 72Wh, the Nexode 100W is under the 100Wh threshold airlines apply to lithium batteries, so it travels in carry-on hand luggage on the major carriers. It must go in the cabin, never checked baggage. Always confirm with your airline before you fly. Full rules: can you take a power bank on a plane?
| Capacity | 20,000mAh (72Wh), 21700 lithium-ion cells |
| USB-C1 output | Up to 100W (PD 3.0, PPS, QC 3.0) |
| USB-C2 output | Up to 30W |
| USB-A output | Up to 22.5W |
| Multi-device output | Main port eases to around 60W; secondary USB-C and USB-A share roughly 20W |
| Input | Up to 65W (USB-C1) |
| Recharge time | 50% in about 50 minutes, full in roughly 99 minutes (Trusted Reviews) |
| Measured output | 98W peak, 81.4% efficiency (Trusted Reviews) |
| Display | Simple four-dot LED level indicator |
| Dimensions | 139 x 80 x 26.5mm |
| Weight | 420g |
| Protection | UL94 V-0 housing; over-voltage, over-current, over-charge, over-discharge, high-temperature and short-circuit protection |
| In the box | Power bank, 240W USB-C to USB-C cable, travel pouch, user manual |
🛡️Safety certifications
UGREEN specifies UL94 V-0 flame-retardant materials and high-quality 21700 cells, with a protection suite spanning over-voltage, over-current, over-charge, over-discharge, high-temperature and short-circuit protection. Confirm the exact certification marks on the unit and packaging when yours arrives.
Check the UGREEN Nexode 100W 20K
Why we scored it 7.4 out of 10
Expert Score 7.4 / 10, built from Charging Speed 9.5, Value for Money 8.0, Cable Design 6.0 and Carry Rating 5.5.
Charging speed is where this bank earns its place. A measured 98W into a laptop and a verified 81.4% efficiency put it at the top end of the 20,000mAh class, so it scores 9.5 there. Value sits at 8.0: a true 100W 20K spec that arrives with a premium 240W cable and a pouch is a lot of kit, though we’ll revisit that score against the real price tier once pricing goes live.
The two scores that pull the average down are practical, not performance. Cable Design takes a 6.0 because there’s no integrated cable, even though the bundled 240W lead is excellent. Carry Rating is the real drag at 5.5: 420g and 26.5mm make this a bag bank, with a scuff-prone finish and no kickstand. None of that undoes the charging, but it’s why the bank lands at a solid 7.4 rather than higher.
The verdict
The UGREEN Nexode 100W does the hard thing well. It charges a laptop at close to full speed from a 20,000mAh cell that still clears airline carry-on rules, and it backs that up with measured efficiency most rivals can’t match. You pay for it in bulk and in the lack of a built-in cable, and you give up real speed if you try to charge several devices at once. For one person who wants a single bank to keep a laptop and a phone going through a travel day, it’s an easy recommendation.
Buy if
- You need real 100W charging for a laptop on the move
- You fly often and want a carry-on legal 20K bank
- You value a bundled high-wattage cable and pouch
Skip if
- You want something light enough for a pocket
- You routinely fast-charge two or more devices at once
- You prefer a bank with a cable built in
Get the UGREEN Nexode 100W 20K
How the UGREEN 100W power bank compares
Head to head
| UGREEN Nexode 100W Our pick |
Anker Prime 300W | INIU 65W 20K | |
|---|---|---|---|
| Max output | 100W | 300W | 65W |
| Capacity | 20,000mAh | 26,250mAh | 20,000mAh |
| Airline status | Under 100Wh, carry-on | Under 100Wh, carry-on | Under 100Wh, carry-on |
| Best for | One laptop at near full speed | Power users who want maximum output | Value buyers on a 65W budget |
| Check it | Check latest price | Check latest price | Check latest price |
Alternatives to the UGREEN Nexode 100W
Powerful step-up
Anker Prime 26,250mAh 300W
Steps up to 300W total and a bigger 26,250mAh cell with a full smart display, so it can charge two laptops at once where the Nexode eases off. It’s our top premium pick in the best power banks roundup.
Slimmer and lighter
Baseus Blade2 12,000mAh 65W
A flat, slim 65W bank that slips into a bag far more easily than the Nexode brick. You trade capacity and top-end wattage for portability, and dispatch can be slow, so check delivery before you buy.
Value pick
INIU 65W 20,000mAh
Same 20,000mAh class for less, with a 65W ceiling that still covers most ultrabooks and every phone. The sensible choice if you want laptop-capable charging without paying for the full 100W.
Frequently asked questions
Is the UGREEN Nexode 100W power bank any good?
Yes, for its intended job. Independent testing by Trusted Reviews measured 98W from the main port and 81.4% efficiency, both strong for a 20,000mAh bank. The main compromises are weight, at 420g, and the lack of a built-in cable.
Can it charge a MacBook Pro or MacBook Air?
Yes. MacRumors charged an M3 MacBook Air from 10% to full in about an hour. The 100W output also covers 14-inch MacBook Pro models, though a large 16-inch Pro under heavy load will draw more than the bank can sustain.
Why is USB-C1 sometimes less than 100W?
The full 100W is only available when one device is connected. As soon as a second device is plugged in, the main port eases to around 60W and the remaining power is shared across the other ports. That’s normal behaviour for a single-cell bank.
Is it allowed on a plane?
Yes. At 72Wh it sits under the 100Wh limit airlines apply to lithium batteries, so it travels in carry-on hand luggage. It must stay in the cabin and cannot go in checked baggage. Confirm with your airline, and see our power bank flying guide.
How many times can it recharge a phone?
MacRumors found the remaining capacity could refill an iPhone 15 Pro from near empty more than twice after the bank’s own use. For most modern phones, expect two to three full charges from a single fill.
Does it have a built-in cable?
No. There’s no cable attached to the body. UGREEN does include a high-quality 240W USB-C to USB-C cable and a travel pouch in the box, so you have a capable lead from day one.
How long does the power bank itself take to recharge?
It accepts up to 65W input. Trusted Reviews recorded 50% in about 50 minutes and a full recharge in roughly 99 minutes using a charger that can supply 65W.
Does it support pass-through charging?
Yes. It can charge a device while being recharged itself, which MacRumors confirmed in use. Because input is capped at 65W, the bank’s own refill slows while it is also feeding a device.
Does it work with Samsung Galaxy fast charging?
The main port supports USB-C PD with PPS, which Samsung’s fast charging relies on. Trusted Reviews measured 98W into a Samsung Galaxy Book 3, so phones and laptops that use PPS charge quickly.
How does it compare to the UGREEN Nexode 130W 20,000mAh?
The 130W model is a separate, higher-output SKU with a more advanced colour smart display. This 100W version uses a simpler four-dot LED and a lower total output, but covers single-laptop charging fully. Choose the 130W only if you need more headroom across multiple ports.
Final word
The UGREEN Nexode 100W is a focused bank that knows what it’s for. It won’t win on size or pocketability, but it delivers the genuine laptop-grade charging and airline-friendly capacity that most 20,000mAh banks only hint at, and the measured test data backs that up. If you want one bank to carry a laptop and a phone through long days and longer journeys, it belongs on your shortlist. See how we test for the method behind this score.
