Page 2 - Physical Look - Hardware
The UGREEN MagFlow Pro Magnetic Power Bank is, as its very core, a utilitarian product. I think most people looking for a power bank want something that prioritizes function over form, and the MagFlow Pro is no doubt practical. It comes in the form of a gray rectangular prism with rounded corners, measuring in at 10.85cm in depth, 7.06cm in width, and 1.63cm in thickness. The plastic enclosure with metal sides feels solid and tips the scales at 230g. This allows the portable charger to align well with MagSafe-compatible Apple devices, fitting neatly under your iPhone's camera while adding a reasonable amount of weight and thickness. However, it will stick out slightly at the bottom when attached to my Apple iPhone 15 Pro and iPhone 17.
Practical design does not mean the MagFlow Pro does not have its own design elements, however. This power bank uniquely has a screen -- not LCD, mind you -- that occupies approximately 40% of the space to show coolant flowing through. It looks pretty cool when it is running, as the liquid moves rather quickly. The pump can be manually activated by holding down the one and only button for two seconds. Do note the pump is audible with a buzzing noise in a quiet room. Otherwise, it will start or stop automatically based on load. The company promises 10c lower temperature than conventional chargers while only consuming 0.02W to operate its internal micro pump. I am not sure what conventional chargers they are referring to or how they arrived at the 10c differential, but the MagFlow Pro does run at a reasonable temperature during operation from my tests. At the very least, having active cooling is better than no active cooling.
Inside, the UGREEN MagFlow Pro Magnetic Power Bank has two 5000 mAh lithium-ion batteries made by ATL, or Amperex Technology Limited, a reputable battery manufacturer that supplies Apple and Samsung. The batteries are rated to retain over 80% capacity after 800 cycles and have a nominal voltage of 3.92V each, which is 39.2Wh capacity. This is clearly labeled on the device and under the 100Wh airline carry-on limit, so you can bring it on the plane without any issues.
UGREEN claims the batteries have a thirteen-layer shield that can survive a 2T crush, needle puncture, and 140c heat with no fires or explosions. I cannot say I have personally verified this, so we will have to take their word for it.
Flip the MagFlow Pro Magnetic Power Bank around, and you can see the magnetic charging pad. The portable charger is Qi2.2 25W wireless charging certified. UGREEN specifies seventeen N52H magnets inside that deliver 8N of gripping force to Apple MagSafe-compatible devices. If you have a case on your phone, do ensure it has a built-in magnet, otherwise it will not hold on. I tried it on my Apple iPhone 17 with the original Apple silicone case, and it held on snugly. You will have to shake your phone pretty hard for the power bank to fall off. I will test the charging performance on the next page.
If portable charging is not your thing, the MagFlow Pro has a built-in 45W USB Type-C cable. It is braided and has a hook to form a carrying strap loop. Having a cable always available is nice, as charging via USB Type-C is significantly faster and more efficient than wireless. However, the cable is not removable, so if anything goes wrong, you cannot replace it. UGREEN claims the cable is tested for 10,000 bends though.
There is also a USB Type-C port on the UGREEN MagFlow Pro Magnetic Power Bank in addition to the built-in USB Type-C cable. It works in the exact same way as the built-in USB Type-C cable -- this port can used for both charging another device and recharging the portable charger's internal battery. This is convenient, as there are times when you have a charger that you want to plug the power bank directly into, and there are times when you already have a USB Type-C cable connected. The MagFlow Pro can be recharged at up to 30W input power. I am surprised it can charge other devices at up to 45W, but not charge itself at the same speed.
In case you are wondering, you can use all three interfaces to charge three devices simultaneously, but with reduced power output per interface. if you only have one device connected, the MagFlow Pro can deliver up to 45W over USB Type-C or 25W over Qi2, depending on the compatibility and state of charge of the device you are charging. In the three-port charging configuration, all three interfaces are limited to just 5W. For two, Qi2 will be limited to 5W, while the USB Type-C will be capped at 10W. If both USB Type-C ports are in use, then the power output is throttled to 7.5W each. You cannot charge the portable charger using dual USB Type-C input.
Lastly, there is a small LED screen on the side, shown in the bottom left corner in the above photo. It is adjacent to the sole button next to the built-in USB Type-C cable. Clicking the button will cycle through internal battery percentage, input or output power, battery health, battery cycle count, and animated liquid cooling status. The user interface is intuitive to use.
With all this in mind, how well will the UGREEN MagFlow Pro Magnetic Power Bank perform? Let us find out on the next page.
Page Index
1. Introduction, Packaging, Specifications
2. Physical Look - Hardware
3. Test Results
4. Conclusion
