NTonPower Direct via Amazon offers its NTonPower 34-watt 6.8-amp 4-Port USB Wall Charger with Travel Plug Adapters in Black for $15.99. Coupon code "2L8FATNM" cuts that to $9.91. Plus, Prime members receive free shipping. (Non-members can check out via Subscribe & Save to bag free shipping.) That's $10 off and the lowest price we could find. It features four smart-charging USB ports, a foldable US plug, and three travel plug adapters (Europe, UK, and Australia). Deal ends December 1.

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