Chinese accessory maker UGREEN launched a new MagSafe-compatible battery pack for i Phone last month, featuring a unique liquid cooling system. The 10,000mAh power bank supports Qi2.2 wireless charging at up to 25 watts, targeting users who need faster portable charging without excessive heat buildup.
The standout feature isn't raw capacity or speed alone. A transparent window on the back reveals coolant fluid circulating inside the device. This active cooling system aims to maintain lower temperatures during high-speed wireless charging sessions, potentially extending battery lifespan and preventing performance throttling.
The visible coolant moves through internal channels when the battery is in use, absorbing heat generated during wireless power transfer. Unlike traditional passive cooling methods that rely on metal casings or air gaps, this approach actively distributes thermal energy across a larger surface area. Early testing suggests the unit stays several degrees cooler than comparable MagSafe banks during sustained 25W charging.
Industry experts note that heat remains the primary enemy of lithium-ion batteries, accelerating degradation over time. By keeping operating temperatures lower, the cooling system may help preserve both the power bank's internal cells and connected devices like i Phones. However, real-world benefits will depend on usage patterns and environmental conditions.
The battery pack joins UGREEN's expanding lineup of MagSafe accessories, priced competitively against similar 25W offerings from Anker and Belkin. Its unusual cooling design sets it apart in a crowded market where most manufacturers focus solely on capacity and charging speed improvements.
Does the liquid cooling system require maintenance? No, the sealed coolant loop is designed to be maintenance-free throughout the product's lifespan, similar to closed-loop systems in gaming PCs.
Will it work with non-iPhone devices? Yes, the Qi2.2 standard supports Android phones and other compatible devices, though magnetic alignment works best with i Phone 12 and newer models.
Is 25W fast enough for modern smartphones? For most users, 25W wireless charging provides a meaningful boost, though it still trails wired charging speeds of 30W and above found in many flagship devices.