Ask AC: Can I use a Quick Charge 2.0 accessory on an older device?

If you've used Quick Charge 2.0 already, you know it's a pretty sweet new feature for your phone to have. We've been exploring all of the Quick Charge 2.0 options this week, and as a result came across a question that needed to be answered. As more devices are released with Quick Charge 2.0 support out of the box and third-party accessories for your home and car start filling the shelves of your local accessories section, it'd be nice to make absolutely sure you're able to use this new hardware with everything you already own. Can you plug any phone or tablet into a Quick Charge 2.0 power supply?

The short answer is yes, you can use a Quick Charge 2.0 accessory with anything you're already plugging a USB cable in to charge. What you'll find in doing so, however, is that your older tech isn't going to charge any faster than it currently is capable of charging.

Not familiar with Quick Charge 2.0? Check out our primer and get caught up quick.

Quick Charge Android

One of the things that makes Quick Charge 2.0 so useful is the way the power supply can crank up the juice based on the needs of the device connected to it. Qualcomm is using a proprietary set of tools to make these determinations and ensure your battery is charged very quickly, right up to about the 70 percent mark depending on the device. The only works for devices that have been licensed to work with Qualcomm's technology. Devices that either have not licensed this technology or were around before Quick Charge 2.0 existed will charge at a lower output level, most commonly 5-5.3 volts at 1-2.1 amps.

Turbo Charger UL

This same general rule applies to all chargers that have been certified by Underwriters Laboratories to work with an outlet and a USB port. It doesn't matter if you're using a Quick Charge 2.0 power supply, an iPad charger, or one of those little glowing chargers that look like the Android figurines, these accessories will charge your device at the highest output your smartphone will receive, with no risk of too much power going into your phone. You can always tell that your charger has been certified by Underwriters Laboratories by the UL logo inside of a circle that appears on all certified devices. As long as you have that logo, you're in the clear.

That said, it's always nice to know what rates your devices are capable of charging at, just in case you have a few older power supplies around that are charging at a lower rate than what your phone or tablet can handle. In these situations, your device will charge noticeably slower and the only fix is a more capable charger. Quick Charge 2.0 has the benefit of appearing mildly future proof, with the ability to charge things quickly at a higher than usual voltage. It may not be time to replace all of your existing hardware with Quick Charge 2.0, but it's probably not the worst idea to keep in the back of your mind either.

Russell is a Contributing Editor at Android Central. He's a former server admin who has been using Android since the HTC G1, and quite literally wrote the book on Android tablets. You can usually find him chasing the next tech trend, much to the pain of his wallet. Find him on Facebook and Twitter

  • Okay great info. I have an S3 and I was considering plugging a turbo charger to it but I was concerned "something" would happen. Posted via the Android Central App
  • Qualcomm Rapid Charge 2.0 is one of the must have new capabilities I'm looking forward to on the New HTC One M9. Sprint Spark is another.
  • The M8 has both. But cool story, bro.
  • Thanks man you're really awesome! Posted via the Android Central App
  • That's telling him! Wait, can be not still look forward to this in the M9? Btw your a turd... A very shiny turd. Next-us
  • "Your" or "You're?
  • Yes, the M8 has both and that's also wonderful. I neglected to indicate I would be upgrading from my HTC One M7.
  • So what's on the horizon with Samsung and its Exynos SOC? Does it have a similar quick charge capability?
  • Does the note 4 exynos version have quick charge?
  • If its true that the S6 will only come with an Exynos processor then yes the Exynos going forward from the S6 will support quick charging as Samsung has given a hint of quick charging in their last commercial for the S6. How you ask, well they show the same lightning bolt at the end of the commercial that is on the Note 4's quick charging AC Wall plug. Posted via the Android Central App
  • I was wondering this too. Makes me wonder if Samsung is doing this so they don't have to pay royalties to Qualcomm, being they are the Largest Android oem, and 10's of millions of devices every quarter is a chunk of change to pay from their own profit margins
  • Does the nexus 5 support quick charge 2.0? D:
  • Please, someone answer the man!
  • Nope.
  • My Note II charges in 3 hours or 10 hours, depending on which charger I'm using. And those are ALL old tech chargers. Posted via Android Central App
  • My Note 4 charges in just over an hour with its quick charger Posted via the Android Central App
  • If they can go from 5V to 9V and 12V why not have also 24V and 48V? (like VoIP phones use in PoE) and a Gigabit ethernet port... that way you'd plug the phone to LAN and it power up and backup everything faster.... Maybe Quickcrarge 3.0 will support it ;)
  • It probably would make your phone charge faster, but only because it'd provide higher amps than the stock charger. Posted via the Android Central App
  • what you expected? make the battery smaller would also charge it faster without a higher amps.. you want that?
  • Actually it is quite different. More Amps isn't enough anymore. Quick Charge actually increases the *voltage* (all the way to 12 volts)... that's why both charger and phone must be certified.
  • I believe the Sony Xperia Z3 will not charge at all with the Motorola Turbo Charger.
  • Why do you believe this? the Z3 is listed as QC 2.0 compliant.
  • What about the Galaxy S5's charger isn't it a quick charge charger? Posted via the Android Central App
  • I don't think it does but I could be wrong as I don't have one with me. Check the wall plug and see if it has a lightning bolt and fast charge printed on the side of it, if it doesn't then it doesn't have it. Posted via the Android Central App
  • I was thinking of getting a Motorola turbo charger for my Moto X 2nd Gen but they are quite expensive. I later noticed that on this website that you can get a universal 2 amp charger for a third of the price, would it function the same as the Motorola one?
  • No I have a Innergie 2.1 amp charger (which charges faster than 3 other 2.1 amp chargers I've tested) and it doesn't charge as fast as my quick charger that came with my Note 4. Posted via the Android Central App
  • No because it will never give more than 5Volts. The turbo chargers will ramp up to 9 volts or 12 volts which at the same amps gives more juice.
  • Thanks for the info, its just a shame that no Quick charge 2.0 chargers are available in the UK. Typical.
  • Ambiguous article. Power (or wattage) is a factor of voltage and current. What's increasing with "quick charge 2", the voltage or the current, or both?
  • Voltage. Current actually goes down at the highest voltage. Here are the output specs of the Motorola Turbo Charger: Standard Output 5V, 1.6 Amps
    Turbo 1 Output 9V, 1.6 Amps
    Turbo 2 Output 12V, 1.2 Amps
  • That sounds scary. I forsee a lot of broken (pre-QC2.0) phones, headsets, and mp3 players as people plug their 12v "turbo" charger and blow out the 5v USB circuitry.
  • My Note 3 came with a Samsung 3.0 USB charger out of the box.
    It can charge my phone in less than 1 hour.
    It also has a Qualcomm processor.
    Does anyone know if the quick charge 2.0 will be of any benefit to me? Posted via Android Central App from my Rose Gold Samsung Galaxy Note 3
  • Is the galaxy tab S2 supports samsung adaptive fast charging / qualcomm quick charge 2.0? Posted via the Android Central App