Review: A Single Gadget to End Your Charging Headaches
The Zolt charger can power up a laptop including a MacBook and a smartphone and tablet; the Anker PowerPort 4 is the best choice for multiple phones, tablets and smartwatches.
http://www.wsj.com/articles/tech-review-a-single-gadget-to-end-your-charging-headaches-1447784847
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