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

This has a footprint a bit larger than a credit card (obviously a lot thicker) and so is easy to put in a pocket. The capacity should give almost 2 phone charges allowing for internal losses and with fast charging protocols and a choice of USB A & C it's easy to live with. The capacity indicator is useful and presumably the low charge mode helps although the manual included doesn't seem to cover it. (2 secs on power button and 2nd digit rotates on & off). For my use of camping and motorbike use, it's a good weight (actually 168g) and supports charge into the bank and out to a device simultaneously. I can charge the bank up on the handlebars and also charge a headtorch, so when I get to camp all good to go. Happy with purchase and would recommend.

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.

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.

excellent

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.

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!

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