Anker PowerCore II Slim 10000, $28 with code SLIMQUIK

Anker’s PowerCore line has long been our readers’ favorite brand of USB battery packs, and you can save a few bucks on the newest model, while supplies last.

The PowerCore II Slim appears to be the first PowerCore battery pack to include Anker’s new chipset, which delivers the fastest possible charging speeds to every USB device you own, including Quick Charge 3.0. That said, you’ll notice it’s not actually a Qualcomm-certified Quick Charge 3.0 product; it just replicates the tech on Anker’s own chip. That means less internal circuitry, and more room for battery, resulting in one of the thinnest 10,000mAh battery packs ever made.

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