Ugreen has introduced a new magnetic wireless power bank that aims to solve one of the most stubborn problems in mobile charging: heat. The MagFlow Pro Magnetic Power Bank comes with a 10,000mAh battery and what Ugreen describes as the world's first liquid-cooling system in a power bank with wireless charging. It is not just a hidden pump and tubes; the front of the device includes a transparent circular "Cyber Window" so users can watch the coolant circulate as the charger works. The product is debuting during IFA 2026 in Berlin and is available starting today for $149.99.
The price immediately places it above many flagship portable chargers from competing brands. Most 10,000mAh magnetic power banks sell in the $30 to $80 range, and even premium Qi2 models with folding stands or bright displays rarely approach $100. Ugreen is asking for more because the MagFlow Pro brings active liquid cooling to a product category where thermal management has usually been passive. The company also has to cover the cost of a small micro-pump, a sealed coolant channel, and the transparent window that makes the technology visible.
Why heat is the enemy of wireless charging
Heat is a long-standing issue in wireless charging. Because charging coils transfer power through electromagnetic induction, some energy is always lost as heat. The amount of heat increases when charging is fast, when the phone is slightly misaligned, or when the wireless charging coil is positioned close to the power management circuitry. Lithium-ion batteries degrade more quickly at elevated temperatures, and sustained heat can also make a phone's software reduce charging speeds or trigger thermal warnings.
Power banks face an even tougher challenge than wall chargers because the battery, charging controller, and wireless coil are all contained in a small, flat enclosure. When a power bank magnetically attaches to a phone, waste heat from both devices can accumulate in the metal and plastic shell. The result is often a pack that feels hot to the touch, charges at slower speeds than expected, or slowly loses capacity with repeated use. Many manufacturers mitigate this problem with large graphene pads, ceramic plates, or ventilation openings, but those are still passive solutions.
Ugreen says it designed the MagFlow Pro to address these issues head-on. The company's thermal management strategy relies on a liquid cooling loop that actively moves heat away from the internal components. In a paper-thin power bank, that is a difficult engineering task because liquid paths need to be sealed, silent, and power-efficient enough not to drain the battery while the charger is idle.
A closer look at the liquid-cooling system
Ugreen calls the internal technology CryoPulse. At the heart of the system is a micro-pump that circulates coolant through a tiny closed loop. The coolant travels the path and passes over the areas where heat builds up near the wireless charging coil and the battery's power delivery circuitry. The heat is then carried to surfaces where it can dissipate more easily. Because the cooling loop is completely sealed, users do not need to refill or maintain a reservoir.
The most distinctive part of the MagFlow Pro is the Cyber Window, a circular opening on the front shell that reveals the pump and the flowing coolant. Ugreen may be using this transparent window as a way to differentiate the product. It also provides useful feedback: if the charger's pump is running, the user can see the liquid move through the slot. If the coolant ever stops moving, the issue is visible immediately, although that is an unlikely failure mode in a sealed consumer product.
Ugreen says the liquid cooling works together with copper foil and a component separation strategy to minimize heat buildup. Copper foil is a common heat spreader with high thermal conductivity. By pressing the foil against the battery or coil, heat can travel away from hot spots and toward a larger surface area. The power bank's internal layout also keeps the phone charging coil, battery cells, and USB-C power circuitry physically separated so that heat from one source does not feed into another.
According to Ugreen, the benefit is threefold. The power bank's battery itself should degrade more slowly. A cooler-running charging surface may also help the phone's battery stay healthy. Finally, with less thermal throttling, the MagFlow Pro can maintain up to 25W of wireless charging output for longer periods of time before slowing down.
Charging specifications and output capability
The MagFlow Pro has a 10,000mAh capacity, which makes it roughly adequate for one full charge for most phones and about two charges for smaller devices. It attaches to phones using a built-in magnetic alignment ring, and the wireless coil supports Ugreen's claim of 25W charging with Qi2.2-compatible devices. Qi2.2 is an updated version of the wireless charging standard that allows magnetic attachment and more efficient power transfer. In practice, the charging speed also depends on the phone model and whether it has the proper firmware to accept faster charging.
For users who prefer a wired connection, the device includes a built-in USB-C cable that doubles as a lanyard. This is a clever design choice: when no external cable is needed, the cable runs through a loop so it can be wrapped around a wrist or bag. The power bank also has an additional USB-C port, bringing the total number of USB-C interfaces to two. The built-in cable and the port can each deliver up to 45W when a single wired device is connected. That is enough for fast charging many laptops, tablets, and phones, though the power bank's capacity is relatively modest for larger notebooks.
There is a catch: 45W is the maximum total output of the MagFlow Pro across all outputs. If a user connects a phone on the wireless pad and also uses the USB-C cable, the available power is shared. For example, wireless 25W charging plus a 45W wired connection would exceed the total output, so the power bank has to balance the load and often reduce speeds to fit within its limits. The exact distribution depends on the devices and the power bank's internal software.
The 10,000mAh capacity may also be a point of debate. Many users expect a $150 power bank to have a larger battery, such as 12,000mAh or 15,000mAh. Ugreen is instead investing in cooling and portability. The inclusion of liquid cooling components may explain why the capacity is not larger; a bigger cell would add weight and make it harder to keep the device slim enough for comfortable magnetic use.
A premium price tag in a competitive market
The $149.99 asking price puts the MagFlow Pro far beyond many popular magnetic power banks, which typically cost less than $100. Ugreen is trying to establish a new category of "cooling-capable" power banks. The company has a strong history in charging accessories, including GaN wall chargers, USB-C hubs, and power banks, so it has engineering credibility. But the liquid cooling feature needs to be useful in real-world daily use, not just as a visual gimmick.
Wireless charging at 25W already creates less heat than some older 15W chargers because newer power transfer protocols are more efficient. Still, managing heat is especially important for power banks because they charge phones in a closed system, often while being carried in a bag or placed on a nightstand. A cooler power bank not only protects the battery, but it also makes the device more comfortable to hold. Watching the coolant flow through the Cyber Window could provide a degree of confidence that the technology is working.
Ugreen says the MagFlow Pro is available starting today. At IFA 2026, the company is showing the product alongside its other announcements and expects it to become one of the highlights of its booth. Whether liquid cooling becomes a standard feature in future power banks or remains a niche selling point, the MagFlow Pro is one of the first credible attempts to make thermal management visible and active in the portable charging space. As wireless charging speeds continue to increase, more manufacturers may follow Ugreen's lead to keep their batteries and phones cool.
Source: The Verge News