Ugreen Nexode 20000 55W
(10 reviews)
Its USB-C cable is built in and doubles as a strap: with 20000 mAh, 55W for Xiaomi devices (45W PD) and CCC certification, it travels as well as it charges.
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Characteristics
- Capacity: 20,000 mAh (74 Wh)
- Power: 55W (Xiaomi), PD 45W, built-in cable
- Outputs: Built-in USB-C cable + USB-C + USB-A
- Weight: 470 g, LED display, CCC certified
- 55W built-in cable and CCC certification (China)
Detailed overview: Ugreen 20000 mAh 55W power bank with built-in cable
The Ugreen Nexode 20000 55W (model PB537) is a 20,000 mAh power bank built around three features rarely found together: a built-in USB-C cable, fast charging up to 55W, and CCC certification printed on the casing, valuable for trips to China where uncertified power banks are sometimes refused at boarding.
Its built-in USB-C cable (17.8 cm, braided) also doubles as a carry strap and delivers up to 55W with Xiaomi Turbo Charge, a proprietary protocol limited to compatible Xiaomi, Redmi and Poco devices. For other devices (iPhone, Galaxy, Pixel), power drops to 45W over Power Delivery 3.0, enough to take an iPhone 17 Pro Max to 66% or a Galaxy S26 Ultra to 71% in just 30 minutes. A second USB-C port offers the same power levels, and a USB-A port rounds things out at 22.5W. Worth noting: these three outputs share one common power budget, the pack does not deliver 55W on every port at once but distributes power intelligently between whichever devices are plugged in at the same time.
Its 20,000 mAh (roughly 74 Wh) recharge, according to Ugreen, about 3.6 times an iPhone 17 Pro, 3.1 times a Galaxy S26 Ultra, 2.6 times a Xiaomi 17 Pro or 2.8 times an iPad mini 7. It recharges itself in around 4 hours with a 45W or higher charger (not included), and a low-current mode (hold the button for 3 seconds) allows gentle charging of earbuds or a smartwatch without the automatic cutoff those devices often trigger.
Built with UL94 V-0 certified fire-resistant materials and a ThermalGuard system, it protects against overvoltage, overcurrent, overcharge, overheating and short circuits. Its LED display shows the remaining battery level in real time. At 74 Wh it stays under the 100 Wh cabin limit and flies with no special authorisation. Compatible with iPhone, Galaxy, Xiaomi, Redmi, Poco, Pixel, MacBook and iPad, the Nexode 20000 55W targets travellers who want a single fast, practical power bank accepted everywhere, China included.
Full specifications
Detailed characteristics
Battery
| Rated capacity?Cell capacity in milliamp-hours, as stated by the manufacturer. | 20000 mAh |
|---|---|
| Actual energy?Actual stored energy in watt-hours; what matters for runtime and air travel (100 Wh cabin limit). | 74 Wh |
| Battery chemistry?Cell type; LFP lasts longer, Li-ion/LiPo is lighter. | Li-ion |
Output (device charging)
| Max output power?Maximum total power delivered; above 60 W it can charge a laptop. | 55 W |
|---|---|
| USB-C ports?Number of USB-C ports and the fastest port's power. | 2 × 55 W |
| USB-A ports?Number of USB-A ports and maximum power. | 1 × 22.5 W |
| Fast-charge protocols?Supported fast-charge standards (PD, QC, PPS…); PD/PPS is the most universal. | USB PD 3.0, PPS, QC4.0, SCP, UFCS |
| Wireless charging (Qi)?Inductive charging of a phone placed on top, and its power. | No |
| Magnetic attachment (MagSafe)?Attaches magnetically to the back of a MagSafe-compatible iPhone. | No |
Recharging the power bank
| Recharge power (input)?Maximum input power to recharge the power bank; higher means faster. | 45 W |
|---|---|
| Recharge time 0-100%?Time to fully recharge the power bank. | 240 min |
| Pass-through charging?Can charge a device while being recharged itself (pass-through). | Yes |
Cable and interface
| Built-in cable?A cable is permanently attached to the power bank (nothing extra to carry). | Yes |
|---|---|
| Retractable cable?The built-in cable retracts into the housing. | No |
| Cable included?A cable is included in the box. | No |
| Display?Level display: simple LED indicators or a digital screen (%, watts). | LED indicators |
| LED light?Built-in LED torch / light. | No |
Form factor
| Weight?Weight of the power bank, in grams. | 470 g |
|---|---|
| Dimensions (L × W × D)?Length × width × depth, in millimetres. | 152 × 71 × 30 mm |
Availability and warranty
| Market launch?Date the model first became available on the European market. Useful to place its generation: technology moves fast in this segment, and a device several years old may be at the end of its commercial life. | August 2025 |
|---|---|
| Warranty?Length of the manufacturer's warranty. | 2 years |
⚡ How many charges with this power bank?
With 74 Wh of capacity, the Ugreen Nexode 20000 55W power bank recharges iPhone 16 ~3.9 times or Samsung Galaxy S25 ~3.5 times.
| Smartphone | Charges |
|---|---|
| iPhone 13 | ~4.3 |
| iPhone 16 | ~3.9 |
| iPhone 14 Pro Max | ~3.2 |
| iPhone 18 Pro Max | ~2.5 |
| Tablet / console | Charges |
|---|---|
| iPad Air (M3) | ~1.8 |
| Redmi Pad 2 | ~1.5 |
| Asus ROG Ally | ~1.3 |
| Asus ROG Ally X | ~0.7 |
Rough estimate: real-world losses (conversion, cable, heat) are around 25 to 35%.
Comparison
At around £28 to £38, the Ugreen Nexode 20000 55W competes with the most common 20,000 mAh power banks, targeted by searches such as "20000mah power bank" or "power bank with built-in cable". Here is how it sits against three references: the Anker 335 (PowerCore 20K), the Baseus Bipow Pro 20000 and the Xiaomi Power Bank 20000.
| Criterion | Ugreen Nexode 20000 55W | Anker 335 (PowerCore 20K) | Baseus Bipow Pro 20000 | Xiaomi Power Bank 20000 |
|---|---|---|---|---|
| Capacity | 20,000 mAh | 20,000 mAh | 20,000 mAh | 20,000 mAh |
| Max power | 55W (Xiaomi), 45W PD | 20W | 25W | 33W |
| Built-in cable | Yes | No | No | No |
| Display | Yes (LED) | No | Yes | No |
| CCC certified (China) | Yes | Not stated | Not stated | Not stated |
| Observed price | ≈ £32 | ≈ £33 | ≈ £30 | ≈ £26 |
In short, the Ugreen Nexode 20000 55W is the only one of the four to combine a built-in USB-C cable, a display and CCC certification printed on the casing, a real criterion for anyone travelling to China. The Anker 335 remains a safe bet but caps at 20W with no cable or display, the Baseus Bipow Pro adds a display but no built-in cable, and the Xiaomi plays the raw-power card (33W) without either. For a fast, complete travel power bank with its cable always at hand, the Nexode 20000 55W is the most versatile choice.
Our tester's review: Guillaume Hoarau
We took the Ugreen Nexode 20000 55W on the road, built-in cable and all, and that cable is exactly what changes daily use: no more digging through a bag for one, it is fixed to the pack and even doubles as a strap. On speed, a Xiaomi phone gets the 55W Turbo mode, other devices (iPhone, Galaxy) cap at 45W over Power Delivery, which is still plenty: an iPhone recovers over half its charge in half an hour. The LED display does its job without fuss, a clear percentage and nothing else. The real selling point of this version is its CCC certification printed on the casing: several users confirm it clears Chinese security checks without trouble, where an uncertified pack can be confiscated. Two honest caveats: at 470 g this is not a pocket pack, and total output is shared across the ports when several devices charge together, so you should not expect 55W on each at once. For frequent international travel, it ticks speed, built-in cable and Chinese certification all at once.
Frequently asked questions: Ugreen 20000 mAh 55W power bank with built-in cable
The built-in USB-C cable and USB-C port each reach up to 55W (Xiaomi) or 45W (PD) when used alone, and the USB-A port up to 22.5W. But when 2 or 3 devices charge together, this power is shared between the active ports and does not add up, so each device gets less than its theoretical maximum.
CCC (China Compulsory Certificate) is a mandatory safety standard in China. Many travellers report that power banks without CCC certification get refused or confiscated at Chinese security checks, while this Nexode carries the CCC mark directly on its casing.
Its 20,000 mAh (74 Wh) recharge roughly 3.6 times an iPhone 17 Pro, 3.1 times a Galaxy S26 Ultra or 2.6 times a Xiaomi 17 Pro according to the manufacturer, enough for several days away from an outlet.
Yes. At 74 Wh it stays under the 100 Wh limit most airlines allow in the cabin with no special authorisation. Like any power bank, it travels in hand luggage, never in the hold.
Holding the button for 3 seconds activates a mode suited to small devices (earbuds, smartwatches) that draw very little current, avoiding the automatic cutoffs these devices often trigger on a standard power bank.
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Published on 30/08/2026