If you prefer an upholstered exterior over the hard, plastic finishes of our picks, and you don’t mind sacrificing some power: Get the ZMI PowerPack 10K USB-C Power Bank (QB910). Like the three aforementioned chargers, the ZMI has a 10,000 mAh capacity rating and ergonomically rounded edges. It weighs 7.4 ounces, or about as much as an iPhone 13 Pro. It fell a bit short in our maximum-output testing, managing just 16 W from its USB-C PD port, though we measured an impressive 15.6 W from its USB-A port. In terms of input, we measured 16.9 W over USB-C PD and a measly 4 W over Micro-USB. The ZMI comes with a USB-C charging cable and a cloth bag (the SuperMini, Redux, and Slim do, too), and adds a handy two-in one cable (a Micro-USB cable with a USB-C adapter attached to the end by a short tether). Compared to most other fabric-covered gadgets we’ve tested, this one uses a more stylish and sophisticated-looking textile—a soft, tightly woven, marled-gray twill. It’s fairly durable, though not impervious to stains.
