Ugreen MagFlow 10000mAh Review: A Cable That Doubles Up

The spread of Qi2 has been anything but rapid, but it rests on the same magnetic charging principle as MagSafe, Apple's proprietary equivalent. Given how firmly established the iPhone is, power bank manufacturers have moved into this segment in numbers, with models of relatively modest capacity built above all to be easy to carry around.

Ugreen's MagFlow 10000mAh belongs to that group. It is designed to rescue people on the move without weighing them down, and while it costs noticeably more than a standard power bank of the same nominal capacity, it has enough going for it to make a case for that positioning.

Ugreen has taken care over this one, and the MagFlow 10000mAh is well finished. It is reasonably compact at 11.08 x 7 x 2.1 cm, which does not match the slenderness of Anker's MagGo PowerBank 10K Slim at just 1.5 cm thick, but it compensates with genuinely useful features — chief among them an integrated cable.

That cable is flat and braided, and it has been cleverly routed along the lower edge of the unit next to the power button, with the result that it doubles as a wrist strap when the battery is being carried. There is also a small display on the right-hand edge of the MagFlow, which shows both which ports are currently drawing power and how much charge remains in the pack. Between the two, this is a power bank that answers the two questions owners actually ask — do I have a cable, and how much is left — without any guesswork.

The pack advertises compatibility with both MagSafe and Qi2, at up to 25 W wirelessly, and Ugreen has not been shy about styling it to sit alongside Apple's current handsets. The pale blue finish echoes the iPhone Air, while an orange variant takes its cue from the iPhone 17 Pro and 17 Pro Max. The soft finish on the wireless charging face is chosen to avoid scratching the back of a phone, and the matt plastic on the opposite side feels solid in the hand.

Weight comes in at 254 g. That is reasonable against the other 10,000 mAh packs in this class, and although some rival designs are lighter, the MagFlow remains genuinely portable and easy to carry about.

No external battery ever delivers exactly the amount of energy printed on its specification sheet; the better designs simply keep the shortfall small.

The MagFlow 10000mAh sits in respectable territory here. Against its stated 10,000 mAh it delivered 8,203 mAh in practice, a shortfall of close to 18%. That is a little on the high side — the strongest performers keep the loss down to around 10% — but it is a more satisfying showing than the Anker MagGo 10K Slim, which lets 25% of its 10,000 mAh evaporate, and it leaves a usable reserve for a day away from a socket.

Translated into devices, the pack managed 1.64 full charges of a Samsung Galaxy S24 Ultra — and the same figure applies to a Galaxy S26 Ultra, whose battery capacity is identical — along with 2.51 charges of an iPhone 15 Pro, 0.80 of a charge for a 13-inch iPad Pro from 2024, 1.9 charges of a Nintendo Switch, and 6.84 charges of a pair of Sony WH-1000XM5 headphones. It is worth noting that these figures were obtained over a wired connection; the measurement method does not extend to charging wirelessly, so magnetic charging will inevitably return lower numbers than these.

Refilling the MagFlow itself is quick enough. It accepts up to 30 W for its own recharge, so with a suitable charger and cable — or using its own integrated cord — topping it back up does not take an inconvenient amount of time.

The pack is rated for up to 25 W wirelessly and 30 W over a wire, using either the integrated cable or the supplementary USB-C port. On the wired side the claim holds up. Measured output reached 14.28 W at 5 V, 26.31 W at 9 V, 29.58 W at 12 V, 29.76 W at 15 V and 29.9 W at 20 V, so the advertised 30 W is genuinely delivered rather than merely quoted.

Ugreen does not state how power is divided between its USB-C connectors, which almost certainly means each receives 15 W when both are supplying a device at the same time. Those USB-C ports are compatible with QuickCharge 4 and Power Delivery 3.0, which means they are capable of feeding a laptop — slowly, of course, but enough to get someone out of trouble in an emergency.

That combination is what defines this pack. It is not a fast-charging powerhouse and does not pretend to be one, but the mix of magnetic wireless charging, two wired options, a status display and a cable that is always attached makes it unusually practical for its size.

The most obvious alternative to the MagFlow 10000mAh is Anker's MagGo PowerBank 10K Slim, and the choice between them comes down to what a buyer values most. The Anker's real-world capacity is slightly lower, but its slimmer 1.5 cm body and reduced 200 g weight make it a relevant option for anyone determined to travel light. The Ugreen answers with the better conversion figure, the second wired port, the status screen and the attached cord, so the trade is bulk against flexibility.