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The Charmast 10,000mAh Ultra Slim is a pocket-sized power bank with USB-C, USB-A and Micro USB ports. It charges phones and earbuds through a standard 5V output, so it tops up slowly compared with USB-C PD banks. Its slim body slips into a jacket pocket, which is its main selling point. Owners like the size and the built-in cables on some versions, but reviewers note the modest output and the slow recharge through Micro USB.
In stock
Lowest price we've seen: $27.99 on Nov 11 at Charmast. Tracked across 1 store since Nov 11.
Owner feedback centers on the slim size and the convenience of the three ports. Many say it does the job for a phone top-up, while others complain that charging is slow and the pack takes hours to refill.
The Charmast Ultra Slim Power Bank is a portable battery with a 10,000mAh capacity. It has three ports: USB-C, USB-A and Micro USB.
The power bank supports fast charging. Its maximum output is 5 volts.
