Charmast Mini 10000mAh Power Bank, 20W Fast Charging USB-C Portable Charger

Amazing powerbank, can charge my phone up to three times, very small and easy to store. Extremely portable. I very rarely leave the house without it.

Great power bank - charges we'll and recharge fast. But definitely not that small or the pain holding it has enormous hands!

This is my second power bank , one is a spare one . Nice and light, easy to use.

I did a lot of research before buying this. I wanted one that will keep my Quest 3 charged whilst playing, as a lot dont have the power wattage to keep up with the devices demands. Happy to say that this device perform the job perfectly, it even charges the Quest 3 slightly while I use it. Its small and lightweight - I barely notice it in my pocket whilst playing. It has a nice indicator on the front to show the charge. It has multiple ports of different sizes which you can charge it from too, so if you are going abroad and just want to take a lightning cable to charge your phone AND recharge the power bank itself - you can. This is also the smallest dimension 10,000mAh power bank that (that delivers 20w) I could find which is another reason why I went this one. So happy to say it can be smallest AND deliver everything you expect.

I can't recommend this little power bank enough, especially if you're looking for a compact, slim and relatively lightweight powerbank that will slip inside a pocket or handbag, etc. I have two other Charmast powerbanks which have been absolutely excellent over the last two years of ownership. But they are the larger sized units, and I was looking for one as as sort of EDC carry item. I tested the capacity of this unit and it came out at 43 watt hours! At 3.7 volts nominal battery voltage that's practically 12,000mAh. And this is the first charge, so it will likely creep up over 12,000mAh on the second charge. So it exceeds it's rating by 20%... The first powerbank to do so in my tests. Fast charges perfectly fine and recharging took around 4 hours at 18-19 watts. Feels very nicely built too, 28th a handmade battery percentage display. Very happy!

Purchased 8th December 2025. Already dead and hasn't been used more than about 30 times at most. Very disappointing, especially as it's a nice compact, pocket-friendly unit.

Bought this very compact power bank to power an ageing Garmin cycle computer for long rides. Have an up front Garmin mount that allows access to the charging socket and secured the p/bank to my bike top bag. Charging cable needs to be long enough so it doesn't restrict steering. Worked a treat over a 6hr ride. At end, Garmin showed zero charge, power bank still showing 100% It's 164g

Have bought a couple of these now. Absolutely perfect for keeping things charged whilst out and about. Fits in your pocket or handbag. I’ve got one in my work bag and handbag. Also great for hikers as it’s super lightweight yet packs a punch powerwise. Would definitely recommend it.