Anker’s PowerCore line of external battery packs is a newly-minted Co-Op winner, and you can save $10 on one of the largest capacities today. While this model probably won’t fit in your pocket, it’s perfect for sharing on long flights, during conferences, or any other extended period where power outlets aren’t readily available. [Anker PowerCore 20100 Power Bank, $30 with code HAVKXACP. Also available in white.]
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