CUKTECH 10 Mini Power Bank
design
The CUKTECH 10 Mini certainly earns its name. At 9cm by just over 5cm and only 217g, it’s perfectly palm sized and feels much smaller than the slim rectangular slabs most power banks opt for. Rounded edges and a matte plastic finish make it comfortable to grab, and the whole thing slides into a jacket pocket or small bag compartment without complaint. For a day to day travel companion it’s a great size.
Build quality is impressive too for something at this price point. It’s plastic, but the shell has no flex or creak to it, there’s gentle texturing on a few surfaces, and there’s a reassuring density to the whole thing. It feels like one solid brick. The top panel houses two USB-C ports and a USB-A with a good-size LED display on the front, CUKTECH has done well to fit all of this into such a compact footprint. The CUKTECH 10 Mini comes in a single grey-and-black colourway that’s perfectly inoffensive if not exactly exciting.
That display is a highlight. It’s sharp, bright, and configurable between showing remaining capacity, live charging wattage, or switching off entirely. A single button press cycles through the modes, and double-pressing activates a low-current mode for charging earbuds, smartwatches, and other small devices without the power bank assuming they’ve disconnected. It’s a thoughtful inclusion.
In the box you get the power bank itself, a felt travel pouch, a wrist strap that threads through two small holes on the unit, and a 15cm USB-C cable. That cable length is almost embarrassingly small and realistically I’m not sure it was even worth including. I can’t imagine anyone actually using a cable of that length for anything. Just bring your own cables.
performance
The CUKTECH 10 Mini offers a headline 55W output, but that number is only achievable in certain conditions with specific Xiaomi devices. I tested it with an iPhone 17 Pro, a MacBook Air, and a Samsung Galaxy Book laptop rated for much higher wattages, but the display never showed more than 40W output on any device. Self-charging told the same story. Even using a 160W UGREEN charger, input was seemingly capped at 40W too rather than the advertised max of 55W.
The capacity situation is equally murky if you just look at the big marketing numbers. CUKTECH pushes this as a 10,000mAh power bank, but flip it over to read the fine print on the bottom and you’ll find the rated output capacity is actually 5600mAh at 5V. Now, the 10,000mAh figure refers to raw cell capacity before voltage conversion losses, so it’s technically accurate but the practical reality is so much lower. An iPhone 17 Pro’s battery is around 4000mAh, so the difference in stated and realworld capacity is worth more than a full 0-100 charge. Something to bear in mind.
In some stress testing the CUKTECH 10 Mini Power Bank drained 20% of its capacity and only added 1% to my Samsung laptop’s battery, not great. Though admittedly CUKTECH isn’t pushing the 10 Mini as a laptop charging bank, all its marketing is firmly pointed at mobile devices. It did perform better with my iPhone, actually delivering meaningful charge at a good speed, though it still drained the power bank rapidly in the process and that wonderful screen was showing percentage drops ticking away in front of my eyes. Thermal performance was acceptable and probably better than I expected for such a small unit. Under sustained charging load, the CUKTECH 10 Mini warmed noticeably around the display area, not alarming and not enough to be considered hot, but enough to be aware of if it’s in your pocket.
Where the CUKTECH 10 Mini really starts to struggle is with multi-device charging, or rather the lack of it. Three ports sounds generous, but in my testing, using both USB-C ports simultaneously caused connected devices to cycle endlessly between “charging” and “not charging” as if you’re repeatedly plugging and unplugging the cable. Whether both ports are outputting, or one is charging the power bank while the other charges a device, the result is the same. It simply doesn’t work.
Using USB-A for one device and USB-C for another does function, and you can even charge the power bank while outputting to both if you use this configuration, but both connected devices reported “slow charger” warnings due to the power split. In 2026, with virtually every portable device now using USB-C, forcing users onto USB-A as a workaround feels like a backwards step. Having two USB-C ports on the thing is essentially a false promise.
summed up
In the balance of size vs performance, the CUKTECH 10 Mini Power Bank firmly chooses size and lets performance slip in order to make it happen. On one hand, you’ve got a well-built, properly pocketable power bank from a manufacturer with serious credentials, and you’re getting it at a price point that undercuts the competition. On the other, you’ve got a marketing pack that bears only passing resemblance to real-world performance. The 55W charging, the 10,000mAh capacity, and the three-port flexibility all failed to deliver to their full potential under realworld testing.
What you’re really getting with the CUKTECH 10 Mini is a 40W, 5600mAh single-device charger. I don’t even say that as a criticism necessarily, even at those levels it’s still decent enough value given its low price point. With such a small footprint it’s still viable as a day-trip emergency backup for topping up your phone, something to throw in a jacket pocket just in case. Ask any more of it and you’ll be disappointed, though. If you need something with a bit more punch for holidays, work trips, or multi-device charging, spending a little more.
