Ugreen MagFlow Air 10000mAh
(16 reviews)
Ultra-slim, magnetic and fitted with a built-in USB-C cable that doubles as a strap: the MagSafe power bank you slip in a pocket and forget until you need it.
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Characteristics
- Capacity: 10,000 mAh (37 Wh)
- Wireless charging: Magnetic Qi2 15W (MagSafe)
- Wired charging: USB-C 30W, built-in cable
- Size: 13.9 mm thick, 213 g
- Ultra-slim, built-in USB-C cable and strap
Detailed overview: Ugreen 10000mAh Qi2 15W ultra-slim magnetic power bank
The Ugreen MagFlow Air 10000mAh is a magnetic power bank built for everyday carry: it combines 10,000 mAh, Qi2 wireless charging and a built-in USB-C cable in a body just 13.9 mm thick, weighing 213 g. It is a footprint usually associated with 5,000 mAh packs, and it slips into a jeans or jacket pocket without bulging.
On the wireless side, it snaps onto the back of an iPhone 12 or newer (ideally without a case or with a MagSafe-compatible one) and delivers up to 15W over Qi2. Ugreen claims roughly a third of a battery in 30 minutes on an iPhone 17 Pro Max; independent measurements vary more, from 21 to 40% in 30 minutes depending on temperature in one test, because thermal protection can throttle the power. Another test needed about four times as long to reach 50% wirelessly as with the cable, so wireless is a comfortable top-up rather than a fast charge.
The fast charge is the cable: a braided USB-C cable built into the body, which also works as a carry strap, delivers up to 30W in both directions, including to recharge the power bank itself. A second USB-C port completes the set and, together with wireless charging, lets it power up to three devices, with power shared between the outputs. The cable and the USB-C port take priority: wireless charging is then off by default and switches on with a press of the button.
The rest of the spec sheet is solid: high-density ATL lithium-ion cells, an aluminium alloy body that helps shed heat, temperature control, 13 layers of protection and a full recharge in about 2 hours with a 30W charger. According to Ugreen, 10,000 mAh is good for about 1.6 charges of an iPhone 17 Pro Max. Four LEDs show the level in 25% steps, with no numeric display. At under 40 Wh, it is fine for carry-on luggage. It comes in Starlight Blue, Space Gray and Lunar White, with a 2-year warranty.
Limits worth knowing: wireless tops out at 15W (the Qi2 25W version of the MagFlow Air is a different, pricier model), the cable cannot be removed and its bulky plug gets in the way with some rugged cases, and on a standard-size iPhone the body overhangs the phone slightly, sitting better on a Max model. For anyone who wants a thin, light power bank with no cable to carry, it is a very convincing compromise.
Full specifications
Detailed characteristics
Battery
| Rated capacity?Cell capacity in milliamp-hours, as stated by the manufacturer. | 10000 mAh |
|---|---|
| Actual energy?Actual stored energy in watt-hours; what matters for runtime and air travel (100 Wh cabin limit). | 37 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. | 30 W |
|---|---|
| USB-C ports?Number of USB-C ports and the fastest port's power. | 1 × 30 W |
| Fast-charge protocols?Supported fast-charge standards (PD, QC, PPS…); PD/PPS is the most universal. | USB PD |
| Wireless charging (Qi)?Inductive charging of a phone placed on top, and its power. | Yes (15 W) |
| Magnetic attachment (MagSafe)?Attaches magnetically to the back of a MagSafe-compatible iPhone. | Yes |
Recharging the power bank
| Recharge power (input)?Maximum input power to recharge the power bank; higher means faster. | 30 W |
|---|---|
| Recharge time 0-100%?Time to fully recharge the power bank. | 120 min |
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. | 213 g |
|---|---|
| Dimensions (L × W × D)?Length × width × depth, in millimetres. | 111.5 × 69.8 × 13.9 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. | April 2026 |
|---|---|
| Warranty?Length of the manufacturer's warranty. | 2 years |
⚡ How many charges with this power bank?
With 37 Wh of capacity, the Ugreen MagFlow Air 10000mAh power bank recharges iPhone 16 ~1.9 times or Samsung Galaxy S25 ~1.7 times.
| Smartphone | Charges |
|---|---|
| iPhone 13 | ~2.1 |
| iPhone 15 Pro Max | ~1.6 |
| iPhone 17 Pro Max | ~1.4 |
| Nothing Phone 3 | ~1.3 |
| Tablet / console | Charges |
|---|---|
| Steam Frame | ~1.2 |
| iPad (A16) | ~0.9 |
| Redmi Pad 2 | ~0.8 |
| Steam Deck | ~0.7 |
Rough estimate: real-world losses (conversion, cable, heat) are around 25 to 35%.
Comparison
Between £47 and £55, the Ugreen MagFlow Air 10000mAh compares with 10,000 mAh magnetic power banks, targeted by searches such as "thin MagSafe power bank" or "MagFlow Air vs MagGo". Here is how it sits against three alternatives: the Anker MagGo 10K, the EcoFlow Rapid Mag 10000mAh and the Ugreen MagFlow 10000mAh (Qi2 25W).
| Criterion | Ugreen MagFlow Air 10000mAh | Anker MagGo 10K | EcoFlow Rapid Mag 10000mAh | Ugreen MagFlow 10000mAh |
|---|---|---|---|---|
| Capacity | 10,000 mAh | 10,000 mAh | 10,000 mAh | 10,000 mAh |
| Thickness | 13.9 mm | 19.8 mm | 15.95 mm | 21 mm |
| Weight | 213 g | 250 g | 230 g | 254 g |
| Wireless charging | Qi2 15W | 15W | Qi2.2 25W | Qi2 25W |
| Built-in cable | Yes | No | Yes | Yes |
| Observed price | ≈ £47 | ≈ £55 | ≈ £54 | ≈ £55 |
In short, the Ugreen MagFlow Air is the thinnest and lightest of the four, with a built-in cable and a moderate price, but it gives up wireless speed: the EcoFlow Rapid Mag and the MagFlow 10000mAh reach 25W, and the Anker MagGo stays at 15W with no built-in cable. For a power bank you carry everywhere without feeling it, the MagFlow Air is the smartest choice; for the fastest wireless charging, look at a 25W model.
Related video
Video: The Thinnest Power Bank I've EVER Seen! UGREEN MagFlow Air - Published on 29/09/2026
Our tester's review: Guillaume Hoarau
What we liked most is how discreet it is: at 13.9 mm, the MagFlow Air disappears into a back jeans pocket, and the built-in USB-C cable, which doubles as a strap, means no loose cord to pack. It clicks onto the back of the iPhone and the magnets hold well, especially without a thick case. By wire it is genuinely quick (30W): the cable does the heavy lifting when you are in a hurry, while 15W wireless works better as a top-up on a commute or at the desk. Two honest drawbacks: it warms up a little during wireless charging and can ease off to protect itself, and the cable does not detach, which can get in the way with a rugged case. The lack of a numeric display (just four LEDs) is also noticeable. But at this size and price it is a very good everyday power bank, especially for a Pro Max iPhone.
Frequently asked questions: Ugreen 10000mAh Qi2 15W ultra-slim magnetic power bank
No, it stops at 15W over Qi2. Ugreen also sells a Qi2 25W version of the MagFlow Air 10000mAh, but it is a different, pricier model: this page covers the 15W one.
iPhone 12 and newer for the magnetic hold and wireless charging, at 15W on Qi2-compatible models. The built-in cable and the USB-C port also charge Android phones, tablets and earbuds by wire.
Ugreen quotes about 1.6 full charges of an iPhone 17 Pro Max from its 10,000 mAh, and more on a phone with a smaller battery. Conversion losses, especially wirelessly, trim that figure a little.
No. It is fixed to the body and can be pulled out to serve as a strap, but it cannot be detached or wound back in. It delivers up to 30W and also recharges the power bank. The second USB-C port takes another cable if needed.
A little: one test noted noticeable warmth wirelessly, with thermal protection then cutting the power. Avoid a thick case, which hurts contact, and use the cable when you need speed.
Yes. At under 40 Wh it sits well below the 100 Wh cabin limit set by most airlines. Keep it in carry-on luggage, never in the hold.
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Published on 08/10/2026