The UGREEN MagFlow Pro fits a working micro-pump, liquid coolant channels, copper heat-spreading foil, and two 5,000mAh cells into a body 16.2mm thick, and then puts a window on the front so you can watch the coolant move. I was at the Gillette Stadium event where UGREEN rolled this out alongside the HomeAgent smart home lineup, and of everything on those tables, this is the object I keep thinking about. Not because the pump is the reason to buy it. It isn’t. Because somebody at UGREEN looked at a $110 accessory category and decided the answer was a pump.
Here is the problem it is trying to solve, and it’s real. Inductive charging leaks a meaningful chunk of transferred power as heat, and the losses in the coil windings scale roughly with the square of the current. Push the Qi2 ceiling from 15W to 25W, which is close to a 70% jump in power, and heat output climbs faster than useful charge does. Your phone notices, negotiates the power down, and the 25W on the box becomes closer to 15W averaged over the session. The heat that got dumped into the battery on the way there also quietly ages it. This is the same failure mode I spent a chunk of the OnePlus 15R review picking apart: a chip or a coil that cannot shed heat is a spec sheet lying to you.
What the UGREEN MagFlow Pro’s CryoPulse actually does
A fan is the obvious fix and the wrong one here. In a sealed 16.2mm brick pressed flat against a phone back, there is no intake, no exhaust, and no air volume worth moving, and venting a lithium product is a compromise you don’t want to make. So UGREEN went the other way. The pump circulates coolant past the charging coil, VC copper foil spreads that heat where it matters, and the internal layout physically separates the coil from the cells. That last piece is the one nobody is talking about, and it matters, because coil heat is merely uncomfortable while cell heat kills the pack in eighteen months. The chemistry and cooling architecture question I got into with CATL and BYD applies at this scale too, just with two cells instead of a traction pack.
The upgrade nobody put on the poster
The model number is PB793, replacing last year’s PB773, and the liquid cooling is not the meaningful change. Wired output is.
| Spec | MagFlow Pro PB793 (2026) | MagFlow Pro PB773 (2025) |
|---|---|---|
| Capacity | 10,000mAh, 39.2Wh at 7.84V | 10,000mAh, 36Wh at 7.2V |
| Cells | Two 5,000mAh ATL lithium-ion in series | Two 5,000mAh lithium-ion polymer in series |
| Wireless output | Qi2.2 certified, up to 25W | Up to 25W |
| Max wired output | 45W (20V/2.25A) | 30W (20V/1.5A) |
| Max input | 30W | 30W |
| Wired plus wireless together | 10W wired, 5W wireless | 7.5W wired, 5W wireless |
| Cooling | CryoPulse micro-pump loop, VC copper foil, separated layout | Passive |
| Display | Hi-res side panel with live in/out wattage, plus front animation LCD | Single side panel |
| Size and weight | 108.4 x 70.5 x 16.2mm, 230g | Similar footprint, comparable weight |
| Street price | ~$110 to $150 / £109.99 | ~£53 |
Forty-five watts out of either the built-in cable or the second USB-C port puts this within range of a tablet or a light laptop rather than just topping up a phone, and it is a straight 50% jump over the outgoing model. Rated energy went up about 9% on the same two cells, which suggests the shift from lithium polymer to lithium-ion did something UGREEN hasn’t bothered to explain. Both of those are worth paying for. The second front-facing LCD showing a cooling animation isn’t; it duplicates the side display and exists for product photography. The cable actually went backward, too. The PB773 tucked its connector into a recess in the body, and the PB793 lets it sit slightly proud, which is a small thing that you will notice every time you pull it out of a bag.
That 25W ceiling applies to the iPhone 17 series, iPhone 16 series on iOS 26 or later, the Galaxy S26 Ultra, and the Pixel 10 Pro XL. The iPhone 16 and 16 Pro cap at 22W, the iPhone Air and S26+ at 20W, and everything from the iPhone 12 through 15, the Pixel 10 and 10 Pro, and the whole Galaxy S25 range drops to 15W, with Samsung’s S25 phones needing a magnetic case fitted before wireless works at all. If you are on an iPhone 15, you are buying a liquid cooling system to solve a problem your phone will never create. Multi-device charging is also crippled in a way the marketing skates past: run the wired port and the wireless pad together and you get 10W wired plus 5W wireless, which is better than the 7.5W the old model allowed but still nowhere near what either output manages alone. Treat it as a fast single-device charger that can trickle-charge something else. Wired is still the fast lane on either side of this, which is why Samsung shipping 60W on the S26 Ultra reads very differently from 25W over a coil.
On the safety side, UGREEN calls the cell architecture Dymondcell 2.0, with 13 layers of circuit protection, a 4mm tungsten nail penetration test, a 2.5-tonne crush test, and a seven-hour overcharge run at 135°C that ended without fire. Thermal Guard samples the temperature 240 times a second and trims output to stay inside limits. I cannot verify any of that from a desk, and neither can you, but the certifications are at least listed rather than gestured at, and a 2.5 tonne crush figure is not a number a marketing department invents casually.
The stand is the better product
The 3-in-1 charging stand got a fraction of the coverage, and it is doing something the power bank physically cannot. A thermoelectric module, a Peltier, pumps heat across a semiconductor junction, which means it can drive a surface below ambient temperature. A fan or a liquid loop can only ever chase ambient. That is why UGREEN measured roughly 11°C at the center of the magnetic pad in a 25°C room, and why the stand gets an iPhone 17 Pro Max to 50% in 26 minutes while the pump-cooled pack takes closer to 40.
It charges an iPhone at 25W, AirPods at 5W, and an Apple Watch at 5W through an MFW-certified puck, totals 32.5W, runs a fan rated at or below 15dB, ships with the 45W adapter it needs, and gives you physical buttons to kill the cooling and the display independently. It also tolerates MagSafe cases up to 3mm. At $130 street price, it is the one product in this launch I would buy without arguing with myself first.
The catch is buried in UGREEN’s own warm tips: don’t run the cooling when you aren’t charging, and don’t use it in humid environments. An 11°C surface sits below the dew point across a lot of the world, and a Peltier consumes real power to move that heat, which is part of why a 32.5W charger needs a 45W brick. I have not seen a single reviewer address condensation yet, and it is the first question I would ask. In the 1st test I’ve done, you can clearly see it in the previous pictures.
The foldable 2-in-1 at $43 is the one I would actually put in a bag. Sixty by seventy-two by twenty-seven millimeters closed, doubles as a magnetic stand, full 25W ceiling, no active cooling and no display, just ThermalGuard firmware backing power off before the phone does it for you. UGREEN publishes no charge-time claim, which tells you what you need to know about how long that 25W holds. It is still the most honest product in the lineup.
This launched at $149.99 on Amazon on the 4th, was reported at $129.99 elsewhere the same day, and sits at $119.99 on UGREEN’s own US store today, with a code taking it to $110.04. The PB773 is still on the shelf, still does the same 25W wirelessly, and has been going for around half that. If you charge a laptop or a tablet off your power bank, the 45W port alone justifies the jump, and you should stop reading and buy it. If a phone is the only thing that ever touches the pad, last year’s model has the same headline number for half the money, and the pump is currently paying for itself in attention rather than minutes.
Edit:
I just checked Amazon; the UGREEN MagFlow Qi2 25W Liquid-Cooled Power Bank is now $99 for Prime members, down from $149 MSRP. You can get the UGREEN Magflow Pro 25W Qi2.2-Certified 3-in-1 for $129 and the UGREEN MagFlow 25W Pocket-Sized 2-in-1 Foldable for $42
Unboxing: