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You can watch the coolant flow inside Ugreen’s liquid-cooled power bank

Sep 05, 2026  Twila Rosenbaum  4 views
You can watch the coolant flow inside Ugreen’s liquid-cooled power bank

Ugreen MagFlow Pro key facts

  • Product: Ugreen MagFlow Pro Magnetic Power Bank
  • Price: $149.99
  • Battery capacity: 10,000mAh
  • Launch date: available from September 3, 2026
  • Special feature: CryoPulse liquid cooling with a transparent Cyber Window
  • Wireless charging: Qi2.2 compatible, up to 25W
  • Wired charging: built-in USB-C lanyard cable and USB-C port, up to 45W combined

Ugreen’s biggest new release at IFA 2026 is not another laptop dock or wall charger. It is a 10,000mAh magnetic power bank that wants to change how you think about heat. The MagFlow Pro Magnetic Power Bank costs $149.99 and is available starting today. It features a micro-pump inside its aluminum body that circulates coolant through an internal loop. Through a small transparent window on the front of the device, which Ugreen calls a Cyber Window, users can watch the coolant pass as the power bank charges a phone. The company believes that this active thermal management system is the first of its kind on a power bank with wireless charging.

The product uses what Ugreen calls CryoPulse technology. It is not just a gimmick with an evocative name. The cooling loop is designed to absorb heat from components that generate the most thermal energy. Those components include the power management board, the battery cells, and the wireless charging coil. The coil sits close to the back panel, so it can make contact with a phone’s internal charging coil. The micro-pump pushes a sealed volume of coolant through channels near these heat sources. The warm liquid then moves to a cooler area near the outer shell, where heat is released into the air. Copper foil inside the chassis aids in spreading that thermal energy across a larger surface. The layout also physically separates sensitive chips and battery sections, preventing a single hot spot from affecting the entire device.

Why does this matter? The answer is thermal throttling. When a wireless power bank is delivering high current, power losses create heat at the coil interface. A phone that is lying flat on a power bank does not get much airflow. The charger has to fit its electronics into a compact package while also carrying a battery. Under sustained load, temperature climbs. At a certain point, the power delivery controller lowers output to protect the internal cells. This is why many power banks advertise high wattage but only provide maximum speed for the first few minutes of charging. In tests, a 20W wireless charger can drop to 10W or less after a few minutes. For fast wireless charging to be useful, the charger must keep temperatures low enough to avoid throttling. That is exactly the problem Ugreen is trying to solve.

Inside the MagFlow Pro

The MagFlow Pro is not radically larger than a standard 10,000mAh power bank. It has to fit a pump, a separate battery, a wireless charging coil, and power electronics inside a slim frame. Most 10,000mAh magnetic banks are about 105 to 110 millimeters in height and weigh roughly 220 grams. The MagFlow Pro’s added cooling hardware likely puts it at the upper end of that range, although Ugreen has not published a full spec sheet. However, the extra weight is a worthwhile trade-off for users who plan to use the power bank to charge flagship smartphones that support Qi2.2. The new wireless charging standard brings magnetic alignment and better power profiles. Qi2.2 is the standard used by the MagFlow Pro, and it permits output up to 25W. That is much faster than the older 15W limit that was common in earlier Qi generations.

By maintaining a lower internal temperature, the MagFlow Pro can preserve its battery capacity for more charge cycles. High heat is known to accelerate lithium-ion degradation. Power bank users often notice that after a year of


Source: The Verge News


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