25W wireless charging generates real heat, and without adequate cooling an iPhone can slow down or even stop charging. Ugreen’s approach to managing that heat is notably more aggressive than most with both a fan and liquid cooling.
Power bank specs
- Capacity: 39.2Wh (10,000mAh)
- Input charger: USB-C (30W)
- Output charger: Wireless (25W) & USB-C (45W)
- On test charged iPhone to: 208%
- Weight: 8.29oz (235g)
- Dimensions: 4.3 x 2.8 x 0.63 inches (108 x 71 x 16mm)
- Colors: Gray
Simon Jary
What is the exact battery capacity of the Ugreen MagFlow Pro?
10,000mAh (10K) remains the largest size you can comfortably clamp to a MagSafe iPhone without it feeling too bulky to pocket. If you want something more compact, a 5000mAh (5K) power bank is worth considering instead but you’ll get fewer recharges from the smaller portable charger. Read reviews of all the best magnetic power banks we’ve tested, both 5K and 10K.
It’s worth noting that not every “10K” power bank has the same actual capacity—watt hours (Wh) is a more precise measure. The Ugreen MagFlow Pro’s 39.2Wh is at the higher end of what we’ve tested and above the average 10K capacity of 38.2Wh.
How fast is the Ugreen MagFlow Pro?
For wireless output, the MagFlow Pro is rated at Qi2.2’s top 25W speed. Only iPhone 16 and later can draw the full 25W; older models, along with the 17e, are capped at 15W, and the iPhone Air at 20W. The difference between 25W and 15W wireless charging is about 15 minutes for the iPhone to reach 50%—30 minutes vs 45 minutes.
The MagFlow Pro’s standout feature is not just its 25W wireless speed. Its 45W USB-C port is matched only by the Anker MagGo Power Bank 2 Pro and Baseus PicoGo AM52 among the chargers we’ve tested. Unlike the Anker, though, the Ugreen includes a built-in USB-C cable (also 45W capable), so there’s no need to carry a separate one—a genuine convenience.
That integrated cable also gives you three simultaneous charging options: wireless, the built-in USB-C cable and the USB-C port. As with most multi-device chargers, though, the total output falls when more than one device is connected—in this case to just 15W. That can still be handy for topping up an Apple Watch or AirPods alongside your iPhone. You can also charge an AirPods case on the wireless charging surface when your iPhone isn’t attached.
