Ugreen launches liquid-cooled 10,000mAh power bank with visible coolant flow for $149.99

Ugreen’s MagFlow Pro power bank introduces a liquid-cooling system to portable charging, a feature previously unseen in consumer power banks. The design uses a micro-pump to circulate coolant, which is visible through a transparent window on the device. This approach targets heat buildup during wireless charging, a known limitation in high-power portable chargers. The system is paired with copper foil and component separation to further mitigate thermal issues. While innovative, the implementation is constrained by the physical size of the power bank, which limits coolant volume and pump efficiency.

The thermal benefits of liquid cooling in this context are unproven at scale. The power bank’s 10,000mAh capacity is modest for its price, suggesting the cooling system adds cost without increasing energy storage. The 25W wireless charging output and 45W wired output are competitive, but the cooling system’s effectiveness in maintaining these rates under sustained load remains unclear. Engineers evaluating this for field use will need to weigh the theoretical lifespan benefits against the added complexity and failure points introduced by the pump and coolant loop.

The $149.99 price positions the MagFlow Pro as a premium product, far above typical 10,000mAh power banks. This cost may deter adoption in applications where bulk or cost efficiency is critical, such as embedded systems or industrial deployments. The built-in USB-C lanyard and additional port add convenience but do not offset the thermal trade-offs of multi-device charging. The liquid-cooling system’s long-term reliability, particularly in mobile or outdoor environments, is also untested. For now, this appears to be a proof-of-concept rather than a scalable solution for thermal management in portable power.