Auskang 3500mAh Mini Power Bank, USB C Portable Charger with Built-in Cable, Small External Battery Pack Compatible with Samsung, Xiaomi, Huawei,Tablets and More

Works well. It is very small and light, so easy to carry around in your bag or even in your pocket. It does charge the phone pretty slowly, and the power bank takes a while to charge back up, but I guess that is the exchange for it being small and light. If you are actively using the phone while charging, the % doesn't go up, but it is maintained. If you're not using the phone, the % increases about 5% in 10 minutes. I haven't been in a situation to use the whole pack yet, so not sure if it'll get the phone to 100% on just one charge. If left unused, the charge does slowly dissipate (or at least it shows only 3 out of 4 LEDs, and the 4th flashes a good while when connected to mains, indicating it is charging), so I make sure to charge it completely just before if I know I'm going to need it. It has never gone below the 3 LEDs even when left a long while, so I don't think this is a problem. It is easy to use, and USB-C charging port means I can use the phone charger for the power bank and don't have to bring two different chargers for holidays etc.

I wanted a pocketable powerbank to top up my phone's aging battery that sometimes fails to get through a full day. This powerbank gives my phone a 50% top-up which is about 5 hours of HD video watching. More than enough for my needs. The metal build quality seems excellent. I am a little worried that the built-in USB C cable may be a weak point, but there is a separate USB C socket that can be used if it fails. It's a few millimetres larger than a credit card and easily fits in my wallet. Negatives: It is a little slow to charge from a 5V wall charger (about 3 hours from 0 to 100%). It also doesn't quick charge my phone. Neither of the above is an issue for me, as I will be using it on a bus, train or in a pub at the end of the day. Don't buy this if you want it to quickly fully charge a tablet or a phone. For me, it's the perfect powerbank to get a topup until I get home to recharge. Anything bigger and heavier is overkill.

Bought as a power bank to take around with me on holiday that wasn't bulky. Absolutely amazed at the compactness. Enough to charge my phone to around 60% which is all I wanted. Metal case is good quality. Very useful when you're about to go on a night out on the town and realise your phone needs charging, easily charges your phone in your pocket. Doubles as a hand warmer when charging!

Very handy but a bit fragile, not sure how long it will last.

Will charge an iPhone 16 from empty to 30% full so I use mine as an emergency back-up. It's awesome that it comes with it's own cable. The small battery capacity means that it has a very slim form.

Don't bother wasting your money on this doesn't charge phone or keep charge with it plugged in

Highly recommend this item. Its compact and easy to carry and has a built in plug, so you don't need any spare leads. I have already bought one for a friend and recommended it to others. It won't fully charge my Samsung, but it gives around 65% or more, which is enough to get you some charge for emergency use. I wouldn't want a bigger one as this is just a slimline credit card size and only slightly thicker, perfect for your purse or pocket.

Great slim line power pack. Sits discretely in my jacket pocket and (with the integral USB C charging lead) has come to the aid of my mobile phone on several occassions. Has a separate lead for changing. I would suggest being gentle delatching and restowing the integral charging cable (so far so good on that front) Could argue it was a little pricey compared to other power packs, but I wanted a slim / discrete unit and on that score I am happy with the overall performance / cost.