CUKTECH 15 Ultra Power Bank, 20000mAh Portable Charger 3-Port with 165W Output Total, TFT Smart Digital Display Battery Pack Compatible with MacBook Pro/Air/iPad/iPhone 16/Samsung/Dell and More

This power bank is smaller than I expected, I got it for travel so I was pleased at the size. Very sleek and modern design, it has a digital display for seeing battery levels, and 165W output, which covers the vast majority of laptops, including my two screen ASUS zenbook. It charges quickly and doesn’t overheat, does warm up a little bit, which is normal.I found it to be lightweight, but my wife said it was heavy. I guess it depends what you carry it in. Overall, a reliable, fast charger, with good capacity for laptops, phones and speakers.

This is an really excellent powerful power bank. It has a larger than usual capacity which makes it ideal for charging up my laptops and higher draw devices.The build quality is top notch, it is much slicker looking than it needs to be. The big difference between this powerbank and others I have is the onboard screen that provides a lot of useful information about the status of the powering. There are three outputs on the unit, one USB A and two USB C's, the USB C's also act as the inputs. Each of these outputs have displays on the screen showing the power use in Watts and the voltage and current draw on each which is extremely helpful to know on many occasions.The internal battery is quite large and depending on the charger you are using it can take some time to recharge the unit. On the screen there is a readout for how long it will take the battery to be recharged under the charging conditions and when the bank is in use, the length of charge left is shown.There is only a single button on the unit which controls whether the unit acts as an input/output/both device and whether the screen remains on or off during use.At £90 this is not a cheap device but it exudes quality. It is a substantial lump so isnt really suitable for keeping in a pocket, but is small enough to pop into a laptop case or a rucksack. It comes in a velvety drawstring bag and the ubiquitous USB C cable and is airline safe.

Overall, this is a very impressive bit of kit.Positives:(1) Had no problem charging my work and casual laptops at full power, they draw about 60W-80W when in use. They also charged while I was using them and the battery was not plugged into the mains. It did charge my gaming laptop but it detected that it wasn't receiving it's full wattage, which is to be expected. That one comes with a giant power brick but good to get you out of a pinch.(2) it has no problem charging multiple devices at the same time and you can plug the battery into the mains simultaneously if needed.(3) The battery is very fast to charge off the mains.(4) The LCD display is really, really useful. It tells you exactly what voltage, current and energy is being charged/discharged across each 'port' in real time as well as the capacity, hours left on battery etc. If you're a nerd like me it's pretty to see how the power changes in real time.(5) It tells you on the LCD display what the device is when connected to the power bank.(6) They include a higher power rated USB-C cable and a storage bag.(7) It's well presented, packaged, boxed and looks like something you'd see on the shelf in a department store/Highstreet electrical store. It comes in branded packaging etc.(8) The product has a general 'well made', robust feel to it. The design seems to have been well thought through and made of quality materials. I would say it feels like a proper premium accessory.Negatives:(1) I'm not going to remove a star for this because I'm not sure if it's intentional or part of the technology. I did find that if the laptop was turned off, it wouldn't charge the battery at full power, it was charging at a rate of 10W-20W. This might be part of prolonging battery longevity so may actually be a feature but something to be aware of.Neutrals:(1) It's not small but not huge. You'd probably be fine getting this in a handbag.(2) Remember that not all USB cables are created equal. If you're charging a laptop, you'll likely need one rated for higher power than say your old phone cable.

This Cuktech Ultra powerbank came with me on a work trip where it has given me a full laptop backup as well as additional power for my phone. It's a heavy beast, but actually no heavier than another I have that's less powerful. It looks very sleek with a little screen that gives loads of useful information about the charging/discharging rates so it's easy to know exactly how much power is left and when it's going to run out. I carried it in hand luggage with no issues at the airport.

If you are looking for a battery for your phone, maybe keep looking because this is far more than you need - it's a very impressive bit of tech.Size wise it's a little bigger and heavier than some 20,000 mAh batteries but has a built in screen to help control / view what's going on. Materials are all decent quality and it feel solid.**Performance **This little battery has all sorts on modes and output is different depending what's is in which plus but when charging a single item it can support up to 140W of output from the USB-C port. That is insane. It can do up to 100W if 2 items are charging simultaneously. It can also charge from 2 inputs to speed up charging.This battery is overkill for most people but boy is it good. It has features you would only find on high end batteries like the newer V-mount batteries at a cheaper price. I can easily recommend this battery