Instruction: Answer the given question using the supporting document.

Input:
Question: charging time for HDX
Document: Fast charging. Great product. Ended up getting a set for my mom too! Great to have in the car on those long trips.
Fast charging, durable product, love the long cord, and an awesome price!! Charges better than the original charger that came with my kindle and WAY faster
It was painful to charge the Fire HD before I received this product. I would never get to 100% charge and it would take hours to re-charge. This is definitely a quick charge and the cord is long enough to use while charging.Worth every penny.
With this particular charger I am able to charge my Kindle and iPhone at the same time. Well worth it.
The shipping was right on time and the rapid charge is a blessing. No longer I am constantly checking to see if it's done.
The connecting wire to the blug into the Kindle broke through to the wire even with careful handling and short time of use. Car charger no trouble.
It's so quick. I have not tried the car charger at this time, but I love the charger that plugs in the electricity. I wish I had it my recent trip.
I have been using the rapid charger for my Kindle Fire for several weeks. It is a great charger and I wish this type of a charger had been included in the original package. I haven't time it but the speed of this charger is really noticeable. I have even used it occasionally to quickly charge my cell phone.
This is an excellent fast charger that I use frequently. I use it daily to charge my windows phone as well as my Kindle HD.Car charger is a fast charger as well. When I forget to charge my phone or Kindle at night it only takes a short time on each to bring to a quick charge. The cable is a nice length . I would recommend this charger .
it doesn't piss me off to use this. Buy it if you have no patience. If you can wait, use the charger that came with the Kindle.
Answer: Pwr+ Rapid Charger charges HD Fire in under 2 hours. Don't have HDX so can't answer that one.