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Fast charging can be a difficult topic to wrap your head around. There are a lot of competing standards, all with different cables and power adapters, but one of the most popular is Qualcomm's 'Quick Charge' technology. There are different versions with different charging speeds, but QC 2.0 and 3.0 are still common to find in today's phones and tablets.
There are a ton of phones that use Qualcomm's Quick Charge standard, including all recent Galaxy S and Note devices, most Xiaomi/Redmi phones, the Zenfone 6, all of LG's recent flagships, and many more. If you have a compatible phone, and you're looking for a fast charger for your car, one model from Unitek is extremely cheap right now.
I know QC 3.0 is the hot new tech on the market right now, but, in reality, it is only incrementally better than the QC 2.0 technology that it is replacing. If you don't mind a small downgrade in speed, you can pick up the older generation chargers for a fraction of what those sporting QC 3.0 cost.
Aukey just sent me the links to a few coupons it is offering on some of its 'old' QC 2.0 chargers. It has a couple for use in the house and one for the car and all of them are heavily discounted. Here are the descriptions and links.
The King Kong of wall chargers is on sale. Tronsmart's massive, and extremely powerful, wall charging station, the Titan, is on sale at Amazon for just $21.99 after applying coupon code TITANUSB at checkout. Yes, that's the code and link right there, you don't even have to finish reading the article!
Oh, you are still here? I guess I better tell you some more about the charger. The Titan sports 5 USB charging ports, and all five of them are QC 2.0 compatible with a total of 10A/90W of charging power. That's Jafar transformed into a genie kind of power.
Almost everybody knows by now what is good by having a device that supports Qualcomm's Quick Charge 2.0 standard. It will charge...quickly. The negative is that if you have amassed a stockpile of USB chargers over the years, none of your old ones can give you the speedy refuel. With Aukey's QC 2.0-compatible charger going for just $7.99, or half off of the full $15.99, after a coupon code on Amazon, you can grab one without feeling its toll on your wallet.
That's even cheaper than the deal we posted just days ago for $10 each, which was quite popular itself.