If you have a large, power-hungry laptop (for gaming or video and photo editing, for instance) and want to charge it while running lots of programs, the ZMI PowerPack 20K Pro is better suited to your needs than the PowerPack 20000.
Maximum measured output: 40 watts Maximum measured input: 60 watts Capacity rating: 20,000 mAh Weight: 0.9 pound To top it all, the PowerPack 20000 has a sleek, sophisticated look compared with most power banks-it’s not much bigger than a Hershey’s chocolate bar, and it weighs less than a pound. And while some laptops need more power to charge at maximum speeds, the PowerPack 20000’s 40-watt-rated output is powerful enough to work with a wide range of models, charging smaller Chromebooks at their maximum speeds and larger MacBooks at respectable rates. If you have a laptop that has only USB-C ports, this means you don’t need separate adapters to use USB-A devices such as wired mice or keyboards.Ĭharging efficiency always varies depending on the age of your devices and the number of programs you’re running, but the PowerPack 20000 has enough battery capacity to fully charge laptops such as the 13-inch MacBook Air or Dell XPS 13 at least once, the Nintendo Switch at least twice, or a smartphone like the iPhone 13 or Samsung Galaxy S21 about three times. Its hub functionality-an uncommon feature that we insisted on for the laptop-focused power banks in this guide because we think it’s particularly useful-lets you recharge a laptop over the USB-C port while also powering or transferring data to your other devices over its two USB-A ports.
The ZMI PowerPack 20000 is the total package.
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