What you're actually getting for the money
Let's be clear: at under a tenner, you're not getting a Anker or a Baseus. No premium finish, no fancy branding. What you do get is a genuinely large 20000mAh cell, a PD3.0 port that'll fast-charge most modern phones, and a QC4.0 output that plays nicely with Samsungs and plenty of Android devices. That LCD screen showing remaining charge is a small but proper useful touch. Most cheap banks skip it entirely.
Personally, I'd think of this as a festival charger, a car boot charger, a keep-it-in-your-bag-and-forget-about-it charger. My mate stuck one in his work bag last summer and it charged his phone twice daily for a four-day trip without breaking a sweat. That's the use case here.
Where it gets a bit wobbly
Honestly, no-brand Chinese power banks at this price point do raise a question or two about long-term reliability. The 20000mAh claim should probably be taken with a mild pinch of salt, actual usable capacity tends to be closer to 13,000-14,000mAh once you account for conversion losses. Still plenty, but worth knowing.
Also, it's not going to be the most compact thing in your bag. 20000mAh means bulk, full stop.
Who should actually buy this
If you want a cheap top-up bank for travel, camping, or emergencies, this is spot on. If you're after a sleek daily driver to sit on your desk at work, maybe spend a bit more. For under £9 though, it's not half bad at all.
