Reddit reviews Anker Quick Charge 3.0 24W USB Car Charger, PowerDrive+ 1 for Galaxy S9/S8/Edge/Plus, Note 9/8/7 and PowerIQ for iPhone Xs/XS Max/XR/X/8/7/6/Plus, iPad Pro/Air 2/Mini, LG, Nexus, HTC and More

Although I don't use it much, I have this one:

https://www.amazon.com/Anker-Charge-Charger-PowerDrive-PowerIQ/dp/B016LOGVRE/ref=sr_1_5?ie=UTF8&qid=1511040289&sr=8-5&keywords=anker+quick+charge+3.0+car+charger&dpID=41ydJIcRCqL&preST=_SY300_QL70_&dpSrc=srch

It works great.

Basically anything with Quickcharge 2.0 or 3.0 should work. I have used this one, but anything similar should be fine.

If you want something truly good quality, Meanwell is the place to be. the PSD-30 would give you 5V@5A from 9 - 15VDC. It's adjustable up to 5.5VDC so you can compensate for wiring voltage losses if necessary. $15 from Mouser, roll your own case and wiring.

As far as pre-built USB power supplies, Anker is probably the best.

Just get one of these and it's problem solved.

Option A

Option B

used this for my S7 edge and now my s8+, works pretty well and it's cheap: https://www.amazon.com/dp/B016LOGVRE/ref=cm_sw_r_cp_apa_ck9gzbFQ22NWR

Doesn't the phone consider anything above standard USB to be "rapid charging?" I know that my N5x says it is when I use http://amzn.com/B016LOGVRE and http://amzn.com/B00VJDSMF2

Now I won't say that it's charging as fast as the included charger, but...

I have this, works great. Of course, in order to enable fast charging with any charger you need to have a capable cable. https://www.amazon.com/gp/product/B016LOGVRE/ref=oh_aui_detailpage_o04_s00?ie=UTF8&psc=1

I use it along with these cables: https://www.amazon.com/gp/product/B01HF0YGCK/ref=oh_aui_detailpage_o04_s01?ie=UTF8&psc=1

Did you check out the other models from the same brand? [This one] (https://www.amazon.com/dp/B016LOGVRE/ref=cm_sw_r_cp_awdb_u5ANzbXT5F5W7) only has a single port, but is also only $10.

Did you know Amazon will donate a portion of every purchase if you shop by going to smile.amazon.com instead? Over $50,000,000 has been raised for charity - all you need to do is change the URL!

Here are your smile-ified links:

https://smile.amazon.com/Anker-Charge-Charger-PowerDrive-PowerIQ/dp/B016LOGVRE/ref=sr_1_2

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I use this one, works great.

https://www.amazon.com/Anker-Charge-Charger-PowerDrive-PowerIQ/dp/B016LOGVRE/ref=sr_1_2?s=wireless&ie=UTF8&qid=1502322690&sr=1-2-spons&keywords=anker+quick+charge+3.0&psc=1

I have three of these and they work very well. Fast charge works now in each of the vehicles and no more dead notes.

Cigarette lighter adapter USB. Anker Quick Charge 3.0 24W USB Car Charger, PowerDrive+ 1 for Galaxy S7 / S6 / Edge / Plus, Note 5 / 4 and PowerIQ for iPhone 7 / 6s / Plus, iPad Pro https://www.amazon.com/dp/B016LOGVRE/ref=cm_sw_r_cp_apap_thWoW7vXU7yEN

I have this one https://www.amazon.com/dp/B016LOGVRE/ref=cm_sw_r_cp_apa_EVKvzbR3FRRP2 and I use it with the stock cable on my S7. I get about 1%/min with it.

Anker makes car chargers that support quick charge 3.0. With this, you'll get the "charging rapidly" prompt.

Anker Quick Charge 3.0 24W USB Car Charger, PowerDrive+ 1 for Galaxy S7 / S6 / Edge / Plus, Note 5 / 4 and PowerIQ for iPhone 7 / 6s / Plus, iPad Pro / Air 2 / mini, LG, Nexus, HTC and More https://www.amazon.com/dp/B016LOGVRE/ref=cm_sw_r_cp_apa_d4N.ybQAFGX1N

I think Anker is one of the best as far as cables an chargers go. I don't use a braided cable, but these look good.

You can use any Micro USB cable/car charger to charge your phone, but I'd recommend getting something like this to take advantage of the phone's quick charge capabilities. I have one in the car and it's great.

Would this one be good?
Anker Quick Charge 3.0 24W USB Car Charger
https://www.amazon.com/dp/B016LOGVRE/ref=cm_sw_r_cp_apa_0i7.zb5RAYSYD