UGreen MagFlow Air: A Fast, Reliable Power Bank Worth Buying

It’s a day ending in Y, which must mean it’s time for another power bank review! Today it’s the turn of UGreen’s Magflow Air, part of a small range of products in the company’s new “Air” line-up that focuses on thin, light devices for those on the go.

This 10,000mAh model has a few tricks up its sleeve, from Qi2 wireless charging to passthrough support, which seemed interesting enough to make it worth reviewing. Would it stand out among a sea of similar power banks in 2026?

The short answer is yes. The much longer answer is below.

Design and Features

The Magflow Air is a simple, minimalist rectangle, available in three colors: grey, blue, and white. To my eyes at least, the grey version I’ve got looks by far the best. In terms of size and weight, it’s not the slimmest or lightest 10,000mAh power bank I’ve ever used, but it’s far from the biggest or heaviest either.

There’s a USB C cable in the box, and a short one built into the bottom edge of the power bank. It’s the right length for comfortably plugging into my phone without flapping around, and clicks firmly into a cavity alongside to keep things tidy and let it double as a carry strap.

Personally I wouldn’t choose to swing my power bank around by its cable like that, but the connection feels firm enough that I wouldn’t be worried about it detaching if I did.

You’ll probably end up using that inbuilt cable most of the time, but there’s also a USB C socket alongside. That’s what I use for my Garmin watch charger with its weird proprietary connector, for example.

Much of the front is taken up by the Qi2 ring, where your phone (or anything else with wireless charging) sits while you’re powering it up. The surface is slightly grippy to help stop things from sliding around, although you won’t need it if you’ve got a Magsafe-compatible device: the magnets are plenty strong enough to hold it in place.

In theory Qi2 allows for wireless charging up to 25W on any compatible device, including the latest Apple, Samsung, and Google phones, but the Magflow Air maxes out at 15W. For anything without Qi2 support, it drops back to the older, slower 5W speed instead.

There’s not much else to report in terms of design: that’s it other than a power button on one side and a row of five LEDs on the bottom. Four of those LEDs give a rough idea of remaining battery life, while the other lights up when you’re charging wirelessly.

The power bank supports charging up to three devices at once, two via a cable and one wirelessly. That’s a good option if everything’s running flat at the end of the day and you just need to get a bit of extra juice into everything, but it has its limits. More on that in the testing section below

Specifications

Testing

As usual when reviewing power banks, I tested the Magflow Air in two different ways: on the bench at home and out in the real world.

Starting from empty, it took two hours and ten minutes to fully charge from a high-speed wall charger. It drew up to 28 watts, reducing as expected when the power bank approached full charge.

It’s asking a lot from a power bank this size to charge a laptop, but it worked pretty well: with the laptop in sleep mode, it took 90 minutes to completely drain the power bank as it added a little over 50% extra charge. The output sat at just over 24W until close to the end.

I then used the Magflow Air to charge some smaller devices: an iPhone, a Galaxy S24+, and a Garmin running watch. Starting with a fully-charged power bank, I charged each device from 25 to 80%, testing both wireless and wired charging where possible.

There was no difference between charging from the inbuilt cable or a separate one plugged into the USB C socket. As long as you have a decent cable, use whichever one you like.

As well as being slower, wireless charging is inherently less efficient than wired. With the MagFlow Air, that showed up in two ways: the power bank got noticeably warmer while charging wirelessly, and used more of its own battery to charge each device.

I also tested pass-through charging, a useful feature that lets you charge a device from a power bank while you’re also charging the power bank itself. Many don’t support this feature, or slow down so much that it’s essentially useless, but that’s not the case here.

To use it, plug the inbuilt cable into a wall charger, and attach whatever you’re trying to charge to the USB C socket and/or wireless ring. Testing this with my phone, it happily charged both wirelessly and from a USB C cable while the power bank itself was charging from the wall.

Input power to the Magflow Air dropped from 28W to 13W (wireless) or 17W (wired), roughly doubling the length of time it took to fully charge, but it’s still more than reasonable if you’ve only got one power outlet available and several devices to charge.

You can even charge two other devices while charging the power bank: one wirelessly, the other wired. Charging speed dropped even further, but it did work: that’s more than I can say for most similar power banks I’ve used.

My final bench test was charging three devices at once: two phones with a cable, and a pair of AirPods wirelessly. The phones charged significantly more slowly but everything did at least charge, and I was able to get everything from near-empty up to 80% or higher before the power bank ran out of juice.

Out in the real world, I took the power bank with me on two different hikes this month: an overnight walk with my brothers and a week-long walk with my partner.

In both cases I used it to top up my phone on the bus and train rides to and from the trail, and towards the end of long walking days along the way. It performed exactly as expected, and handled being bounced around in my backpack for days on end without issue.

As long as I used the cable rather than the wireless charger, I was able to get close to two full charges of my phone out of each charge of the power bank. That’s about what I’d expect from a 10,000mAh power bank with good-quality cells inside.

Verdict

Overall, while there’s nothing particularly unusual or revolutionary about UGreen’s MagFlow Air, it does what it says it will on the box, and is a power bank I’m happy to recommend.

It’s a sensible size, weight, and capacity for travel, hiking, or just general commuting, easily giving two full charges of almost any phone while you’re away from a power outlet. The inbuilt USB C cable means one less thing to remember, with the flexibility of both wireless charging and a separate USB C socket when you need them.

It got very close to the 30W advertised input and output power in my testing, which means speedy wired charging on most devices, and it even has enough juice to top up a laptop in a reasonable amount of time if you need to.

Pass-through charging works well, and has been implemented much better than similar power banks I’ve used (here’s just one example). The MagFlow Air feels sturdy and well-made, performs reliably, and was no worse for wear after a week in my backpack.

The only real issue I have with this power bank is the odd decision to cap the Qi2 output at 15W instead of the 25W it’s capable of. It’s still better than old-school wireless charging, but wired charging is much faster, and I found myself reaching for the cable whenever I had the choice.

Even so, I’ve always been happy with the UGreen gear I’ve used, and at full retail this represents pretty reasonable value for what you get. Pick it up during one of the company’s regular sales, and it’ll feel like a bargain.