I will also write my review for this product.

I have owned this particular powerbank since August 2025 and bought it mainly for use during trips, where charging my phone was not always easy/possible. What attracted me was the very good price in relation to its capacity as well as the high charging Wattage, since most powerbanks in this category offer up to 22.5W charging. It is small in size and relatively lightweight (364 grams) for a powerbank of such capacity, which makes it ideal for carrying and portability (though it is slightly thick). The fact that it comes from Baseus, a company with proven reliability, quality, and good support, made me proceed with the purchase. Additionally, its use has been based on charging mobile phones, wireless headphones, and laptops (it has also been used as a power supply/for powering various projects with Arduino and ESP without any problem). Note: it was purchased for about 30 euros (€30). (Also, it passes through airport checks without any problem)

Its technical specifications are as follows:

1) Nominal Capacity: 20,000 mAh
2) Weight: 364 grams
3) Dimensions (approx.): 12cm (height) x 6.5cm (width) x 2.5cm (thickness), fits comfortably in the palm of the hand
4) 2x built-in USB-C cables, 1x USB-C port, 1x USB-A port (cable 1 and the USB-C port can also be used for charging the powerbank)
5) Screen for battery percentage indication and fast charging indicator
6) Detailed Volts and Amps for each cable/port for output and input:
USB-C Cable 1/Cable 2/USB-C Port Output: 5V-3A, 9V-3A, 12V-2.5A, 15V-2A, 20V-1.5A, 10V-2.25A(scp)
USB-A Output: 5V-3A, 9V-2A, 12V-1.5A, 10V-2.25A(scp)
USB-C Cable 1/USB-C Port Input (for charging): 5V-3A, 9V-3A, 12V-2.5A, 15V-2A, 20V-1.5A

Now, for the Positives, I will include the following:

1) Excellent value for money for its category and size.
2) 30W Fast Charge, much higher than the usual 22.5W in other powerbanks.
2) 2x built-in USB-C cables which are very practical for use without extra cables.
3) Simultaneous charging on all 4 ports for charging multiple devices.
4) Good autonomy offering about 3.5 full charges to a phone with a 5000mAh battery (absolutely reasonable due to losses).
5) Can even charge a laptop (charges slowly, but it does).
6) Low operating temperatures (gets slightly warm under heavy use, which is perfectly normal).
7) Generally reliable and stable operation. Overall very good build quality, as is usual with Baseus.
8) The powerbank itself supports fast charging for its own charging.
9) The battery percentage shown on the screen seems to be accurate compared to other powerbanks.

Now, for the Negatives, I will include the following:

1) Durability of built-in cables: I do not know how durable they are in the long term, so some care is needed in use.
2) I would have preferred an additional USB-C or USB-A port for even greater flexibility.
3) The black color I have, and because its material is matte, know that it will get dirty and acquire scratches and marks relatively easily. Also, I have not dropped it so far to see its durability, so I would not risk commenting on its durability. Generally, it needs care, as do all electronic devices.

Conclusion

The Baseus QPow 2 is an excellent powerbank for its category: fast charging, good autonomy, practical built-in cables, and reliable operation. With Baseus's reputation for quality support and expertise, it is a purchase worth making. Despite its small drawbacks, I am overall absolutely satisfied with the purchase. A very good companion for travel and everyday use.
We just have to see its real durability.

UPDATE: June 1, 2026 (almost 1 year of use, 10 months)

After almost 1 year of use, and after having dropped it a couple of times, it continues to work perfectly (it has acquired some scratches, nothing special, and because of the black color they are hidden).

Its built-in cables are in excellent condition and ultimately seem quite durable, they are very convenient and I really do not need to carry a charger or extra cables with me.
Additionally, the powerbank does not seem to have lost any performance. It works flawlessly. Note, it is used almost daily.

Thank you for reading my review. I hope it was helpful.