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Anker PowerCore+ 20100 review: A top-performing USB-C battery pack

If you need a high-capacity battery that can fully charge a 12-inch MacBook, this is your best bet.

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Glenn Fleishman’s most recent books include Take Control of iOS & iPadOS Privacy and Security, Second Edition (covering iOS 15/iPadOS 15), Take Control of Your M-Series Mac, and Take Control of Securing Your Mac. In his spare time, he makes Tiny Type Museums. He’s a senior contributor to Macworld, where he writes Mac 911.