Aukey Quick Charge 2.0
Aukey is another manufacturer that has a Qualcomm-certified Quick Charge 2.0 charger on Amazon, and it's also currently on sale for only $14.99 making it the cheapest we've seen yet. Chargers that are certified for Quick Charge 2.0 work just fine with the Galaxy S6, and still enable the "fast charging" which you'll see in the notification bar once you plug it in.
If it's a regular charger, you won't see the "fast charging" notification appear and instead it will only show that the device is charging, and you'll notice it takes much longer for your Galaxy S6 to get full.
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