It never hurts to have a spare wall charger or two around, especially if it's small enough to fit pretty much anywhere. Right now you can get the Anker PowerPort III Nano 18W USB-C wall charger for a low price of $14.44 at Amazon. Just be sure to clip the on-page coupon that takes 15% off the price. Without the coupoin, the charger is $17 and can go as high as $20. Even at that price, it's a relatively inexpensive item, but it's still nice to save a few bucks. Especially since this is the sort of thing you could buy more than one of just to have them around the house.
The PowerPort III is called Nano because it's so tiny. Despite the power behind it, it's roughly the same size as the default wall adapter that comes with a smartphone like the iPhone. It's only one-inch thick and designed to be ultra compact so you can keep it with you wherever you need it. Anker's latest design tech uses custom magnetic components to reduce the size, boost the efficiency, and improve the heat dissipation. I mean, just look at Anker's previous design for an 18W USB-C power adapter, or look at a competitor like RAVPower and you can see just from the image how much more compact this new version is.
The single USB-C Power Delivery port has 18W of power behind it to provide full-speed charging for phones, tablets, and other mobile devices. Thanks to Anker's new PowerIQ 3.0 tech, the adapter knows what device is being plugged in. It works flawlessly with any USB-C device and provides the most power it can.
You will also get an 18-month warranty from Anker for the adapter.
Inevitably, you're going to want to plug something into this adapter. That is its purpose after all. So you'll probably want to add a cable to this purchase. Get a USB-C to USB-C cable, USB-C to USB-A or a USB-C to Lightning based on what you need for the devices you plan to use this adpater with.
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J.D. Levite has been in the deals game since 2012. He has posted daily deals at Gizmodo, The Wirecutter, The Sweethome, and now covers deals for Android Central, iMore, and Windows Central. He was there for the first Prime Day and has braved the full force of Black Friday. If you cut him, he bleeds savings. But don't try it for real. That's a metaphor.