Ugreen's MagFlow Pro is a power bank with liquid cooling inside
Ugreen has built a power bank with an actual liquid cooling system inside it. The MagFlow Pro, priced at £109.99 in the UK and $149.99 in the US, is the first portable charger to combine Qi2 25W wireless charging with a micro-pump that actively circulates coolant to manage heat. It goes on sale on 4 September 2026.
The heat problem it's solving
Wireless charging at higher wattages generates a lot of heat. When a phone gets too warm, it throttles its charging speed to protect the battery — which is why a 25W wireless charger often delivers far less than that in practice. Qi2 25W pushes roughly 70% more power than the previous 15W standard, and that extra load makes heat a real engineering problem.
Ugreen's answer is a system it calls CryoPulse: a micro-pump, a vapour-chamber thermal foil, and a two-part modular chassis that separates the battery cells from the electronics. When the temperature rises, the pump kicks in and circulates fluid away from the hottest zones. Ugreen claims peak temperature is reduced by up to 18°F compared to an industry benchmark, according to FoneArena: CryoPulse system specs.
The transparent housing makes the coolant loop visible — it's a deliberate design choice that borrows the aesthetic of custom PC water cooling.
Specs and who it's for
The MagFlow Pro packs a 10,000 mAh battery. Wireless output tops out at 25W (Qi2 certified). A built-in USB-C cable and a separate USB-C port each support up to 45W wired output. Protocols covered include PD 3.0, QC 4.0, and PPS, so it works with iPhones, Samsung Galaxy flagships, and most modern Android devices at full speed.
The price gap
At £109.99, the MagFlow Pro costs roughly twice what you'd pay for a fan-cooled option like the Ecoflow at around £53. That's a significant premium for what is, at its core, a 10,000 mAh portable charger. The sustained 25W Qi2 output and the visible cooling loop are the differentiators Ugreen is betting on, as Mighty Gadget notes in its coverage of the launch.
Whether the real-world charging speed advantage justifies doubling the price is a question independent reviews will settle after launch. For now, the MagFlow Pro is the most technically unusual power bank on the market.
