Fast magnetic charging generates heat that can slow charging down. UGREEN’s MagFlow Pro tackles that problem with CryoPulse liquid cooling: a micropump circulates coolant, visible through a transparent window.
Price: $149.99
Where to Buy: Amazon, Ugreen
The 10,000mAh power bank pairs up to 25W Qi2.2 wireless charging with up to 45W wired USB-C output. It also includes a built-in USB-C cable, an additional USB-C port, and a charging display.
Liquid cooling addresses a genuine problem
Visible coolant grabs attention, but heat management matters as wireless charging speeds increase. UGREEN says CryoPulse’s micropump circulates coolant to draw heat away from key components.
In internal testing with an iPhone 17 Pro Max at an ambient 77°F, UGREEN claims peak temperatures up to 18°F (10°C) below its stated 118°F industry benchmark. That is not a guaranteed reduction: phone model, case, battery state, charging load, and ambient temperature all affect results.
Independent testing is encouraging. 9to5Toys found the pack noticeably cooler than many alternatives, with both it and an iPhone 16 Pro staying relatively cool. Macworld also reported effective cooling and strong battery performance, though results will vary by setup.
Qi2.2 pushes wireless charging to 25W
The MagFlow Pro supports Qi2.2 magnetic wireless charging at up to 25W with compatible devices. UGREEN specifically promotes that higher charging rate for recent iPhones capable of accepting 25W Qi2 charging.
Older devices do not automatically receive the same output. For example, older compatible iPhones can be limited to 15W wireless charging. Buying a 25W power bank therefore does not override the charging limits built into the phone.
UGREEN claims the MagFlow Pro can charge an iPhone 17 Pro Max to 50 percent in about 40 minutes under its test conditions. That is useful as an indication of what the company is targeting, but it should not be confused with an independent Gadgeteer charging result.
For someone with a compatible newer phone, 25W is the main reason to consider this over an older 15W magnetic battery. The cooling system then becomes more relevant because UGREEN is trying to control the additional heat associated with sustaining that higher wireless output.
The built-in cable may be even more useful
The MagFlow Pro offers up to 45W wired USB-C output when speed matters more than magnetic convenience. Its built-in cable doubles as a carrying strap, while a separate USB-C port supports additional devices.
That 45W maximum applies to a single wired device. Macworld reports that total output drops to 15W with multiple devices connected, so simultaneous charging trades speed for flexibility.
10,000mAh delivers strong tested capacity
UGREEN rates the battery at 10,000mAh, or 39.2Wh. The MagFlow Pro measures approximately 108 × 71 × 16mm and weighs around 235g, or 8.29oz. Those numbers make it substantially more pocketable than a large laptop power bank, although the cooling hardware means it is not an ultralight magnetic battery.
Independent capacity testing is particularly encouraging. Macworld drains an iPhone and measures how much recharge a power bank can provide before the bank itself is depleted. The MagFlow Pro delivered 208 percent in that test, compared with Macworld’s stated 174 percent average for 10,000mAh power banks.
That does not mean every phone will receive exactly 2.08 full charges. Different battery sizes and charging conditions will produce different results. It does, however, provide independent evidence that the MagFlow Pro made effective use of its rated capacity in that particular test.
Cooling comes with a few compromises
Adding a pump and active cooling introduces complexity that a conventional power bank does not have. Macworld tested three units and reported slight buzzing from two of them, while the third was quieter. Anyone particularly sensitive to noise should keep that in mind.
The MagFlow Pro also lacks a kickstand, something available on several competing magnetic power banks. That makes it less useful for propping up a phone on a desk or airplane tray while charging.
Then there is price. UGREEN launched the MagFlow Pro at $149.99, putting it firmly into premium power-bank territory, although promotional pricing can reduce that considerably. Current pricing is worth checking rather than assuming the launch price still applies.
Who should buy the UGREEN MagFlow Pro?
The MagFlow Pro makes the most sense for someone with a newer Qi2-compatible phone who regularly uses magnetic charging and dislikes how warm conventional high-output wireless power banks can become. Its combination of 25W wireless charging, 45W wired output, a built-in USB-C cable, 10,000mAh capacity, and active liquid cooling gives it more versatility than a basic magnetic battery.
It is harder to justify for someone using an older phone limited to 15W wireless charging or anyone who normally plugs in a cable anyway. Those buyers can find simpler 10,000mAh batteries without paying for a pump, cooling system, and transparent window.
Price: $149.99
Where to Buy: Amazon, Ugreen
The liquid cooling certainly gives UGREEN something unusual to put on the box, but independent testing suggests it is more than decoration. The MagFlow Pro’s stronger argument is that UGREEN has combined that thermal management with genuinely useful charging hardware. For the right phone and the right buyer, that makes the cooling system less of a gimmick and more of a practical solution to one of fast wireless charging’s persistent annoyances.
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