UGREEN’s Power Bank Uses Liquid Cooling, and You Can Actually Watch It
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UGREEN’s MagFlow Pro treats overheating as a design problem worth solving with actual engineering, not just a bigger heat sink. This 10,000mAh magnetic power bank borrows liquid cooling from gaming PCs and squeezes it into a pocket-sized charger, aiming to keep wireless charging fast without turning your phone into a hand warmer along the way.
Qi2 charging has always had a dirty secret hiding under its magnetic convenience. Wireless systems lose up to 30% of their power as heat during transfer, which means a phone sitting at 25W often throttles down within minutes to avoid overheating. UGREEN built the MagFlow Pro around fixing that exact bottleneck rather than just chasing a bigger battery number.
Designer: UGREEN
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Inside sits CryoPulse, a cooling system built around a micro-pump that circulates liquid coolant past the charging coil and other heat-generating components. Copper foil spreads that heat further, while a layout that physically separates key parts keeps warmth from concentrating in one spot. It is a scaled-down version of what keeps a gaming rig from throttling under load, just built to survive inside a phone charger.
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A transparent panel on the front turns that entire process into something you can actually watch, showing coolant moving through the internal channels while your phone charges. It is an odd, almost theatrical touch for a power bank, but it doubles as reassurance that the system is doing its job. UGREEN calls it the Cyber Window, and it is hard to look away from once it is running.
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That cooling translates into real numbers, too. UGREEN claims the system keeps peak surface temperatures on a phone up to 18°F below its own reference benchmark, letting a device hold onto higher wattage for longer instead of stepping down early. In practice, that means someone topping up before a flight or during a commute gets closer to advertised charging speeds instead of a slow crawl once things heat up.
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A small display embedded in the shell keeps track of charging wattage, remaining battery percentage, cycle count, and cooling status, turning what used to be a guessing game into actual visible data. Paired with a built-in USB-C cable capable of 30W and a combined output of up to 45W, the MagFlow Pro can charge a phone, tablet, and another accessory simultaneously without demanding a bag full of extra cables.
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If the battery degraded quickly, all of those fancy features would be pointless, so UGREEN built the cell around Dymondcell 2.0 protection, retaining more than 80% of its capacity after 800 charge cycles. It also survived seven hours of continuous overcharge testing without failure, a detail aimed squarely at anyone who leaves their charger plugged in overnight out of habit rather than necessity.
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At $149.99, the MagFlow Pro costs considerably more than other 10,000mAh power banks on the market, and that price tag puts real weight behind its cooling claims. It is a bet that people charging phones daily care as much about consistent performance and battery longevity as they do about raw capacity, and that a bit of visible engineering can justify paying extra for it.
The post UGREEN’s Power Bank Uses Liquid Cooling, and You Can Actually Watch It first appeared on Yanko Design.











