Your Qi charger will soon support 15W fast charging

An update to the Qi charging spec has been announced by the Wireless Power Consortium, and it's all about more power and backwards compatibility. Qi chargers will soon be able to fully utilize 15W charging device, more commonly known as Quick Charge 2.0 chargers. Qi platters will be able to pass the power to devices that support this new wireless fast charging spec, which will effectively make it so wireless charging will be just as capable of getting your device from 0 to 60 in 30 minutes as your regular charger.

Fast charging Qi platters is an exciting development in the wireless charging conversation, and backwards compatibility means all of your existing Qi hardware will support this new capability as soon as your have a device that supports the new feature. While many Android phones already support a variant of Quick Charge 2.0, it's not yet clear when we'll see a device support this updated spec. It's unlikely this is something that can be activated with a firmware update, rather something you'll be able to look forward to on your next smartphone.

It also means now is the best time to start researching the costs associated with updating all of the chargers in your personal network to 15W chargers, since that is clearly going to be the standard within the next year or two. You can be sure we'll be following this one as closely as possible, so stay tuned.

Source: WPC

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

  • Now this is good news!
  • And in other news, cell phone batteries only last 8 months now before losing 50% of their capacity... Oh, most of them are not user replaceable anymore as we have all seen.
  • Not worried. Why? I have a phone that still have a replaceable battery.
  • Fear mongering with no facts. Funny.
  • That logic is slightly flawed. While it is true that wireless charging produces heat, it doesn't produce as much as wired quick-charging (although, I'm sure that wireless quick-charging will). What's more, it doesn't produce as much heat as actually using your phone on a sunny day! The reality is that these devices are designed with these heat cycles in mind. Does that mean it doesn't matter? No, but it does mean that the heat cycles are already factored into the 2-3 year lifespan rating of batteries. Saying that heat caused by charging cycles will reduce battery life is effectively counting it twice.
  • Forget what the specs say, we're talking about observable real world battery life over time.
    It's as simple as this , the more often you heat up the phone, the quicker the battery will degrade.
    their are a number of things that can heat up your phone but assuming all other usage is eqaul I have a quick charger for my device, but I only use it during the day when I need a quick top up, not for my normal overnight charging Now let's say someone else has the same device, but they use a wireless quick charger every night.
    So you have the quick charging heat + the wireless charging heat getting that thing toasty each day. In the real world my battery is probably going to be in slightly better shape in a year and will hold out a little longer.
    Wireless charging and quick charging are great in a pinch, a quick top up at starbucks when you don't have your power cord or a quick charge at 4:30 when you know your phone isn't going to last all day.
    But people who use them every day for every charge are kidding themselves that it isn't decreasing the life of their battery somewhat.
  • Not sure where you get your evidence, since you don't site any, but my phone gets much, much hotter when charging wirelessly than when plugged in. And far hotter than when I use my phone normally on a hot day. Your claim that using a phone on a hot day make it hotter than wireless charging is simply not supported by empirical evidence. And I don't care what heat cycles a phone is "designed for." The hotter the battery gets, and the more often it gets hot, the shorter the battery is going to last. Period. It's simple physics, and no "design" can get around it. "Counting it twice" is semantics. Facts are facts, and you're trying to spin them.
  • I've been using a Qi charger with my Nexus 4 since day 1 (nov 2012), and it still easily gets me through a full day...
  • #LGG4 Just kidding, sort of, whomp whomp. On a more serious note, does this mean that if you already have a 2.0 capable device that as of right now you should be able to get quick charge speeds from QI? Unless I'm missing somethign I'm not sure how this will be a "coming soon" type of thing unless there's some sort of firmware update capability for the QI mats that will need to take place for this to start working on a device that already has 2.0
  • The impression I got from the article was that most likely current QC + Qi devices won't be able to "upgrade" to the fast Qi charging, as it will require a new version of Qi hardware. Posted via the AC App on my Nexus 6
  • This is not true. Li-ions drop about 10% per year.
  • Have a Nexus 5 here from well over a year ago. Still works as great as day one, if not better now with fixes and bug improvements over a few updates. Sometimes there are apps at fault draining your battery. Your argument states no facts and from personal experience. I don't agree with you at all. I'm pretty sure I'm not the only one thinking you made up the news yourself.
  • Awesome! This is great news
  • wow, a new way to fry eggs!
  • You guys know quick charge kills your battery faster than if you didn't use it Posted via the Android Central App
  • There's absolutely no scientific evidence at this point to prove that. The techs only just recently been included in phones . To the contrary there's actually been evidence through research that lithium-ion batteries don't fair any better charged slowly than they do quickly.
  • When he says "evidence" I'm sure he means a verifiable study of some sort, not your bald assertions, assumptions, and inferences. Posted via the Android Central App
  • That's not what I said. Research has shown that we were not sure how they charged at all. Sure heat can dmg a li-ion battery, hence the regulators, but read below: When scientists measured the effects of charging a li-ion battery at a nanoparticle level slowly over time...
    Want lithium-ion batteries to last? Slow charging may not be the answer "Rather than electrical current being evenly distributed so that all particles gradually get charged, it actually gets absorbed by single particles or small groups of particles for a short period of time until each is charged, then moves on to the next one. The battery is effectively charged particle-by-particle through a series of very fast charges. That surprised researchers, because rapid charging was also thought to be damaging to batteries." Essentially, on a nano particle level the individual particles are charging just as quickly whether slowly over time or "quick charging".
  • What the assertions about heat fail to take into account, at least when it comes to quick charging (and if qi or one of the other 2 specs ever get off their butt and actually implement faster wireless charging, it will apply to those as well) are these things: 1) Most people leave their phones plugged in way too long on slow chargers, even if those phones handle trickle charging well, the slow chargers end up producing a lot of unneeded heat. 2) Fast charging best practice (and slow charging for that matter but even fewer follow it there) is to not try to reach a full 100% charge. 80-90% is the optimal charge level except for every few weeks to maintain battery stats. It takes much more energy to go from 80% to 100% than it takes to charge any other 20% range. Quick charging is actually designed to not try to get you to 100% but to let you QUICKLY get to 80% multiple times throughout the day. 3) While you produce more heat during those few minutes to get to 80-90%, you are on the charger for far less time. And because you can fast charge a few hours later you don't need to reach a full 100% to last out the day. So yes, the max heat reached via both wireless and fast charging is higher than the max reached when slow charging, the amount of time spent at the higher temperature is MUCH less (assuming you disconnect after you've reached 80% ... and since you reach it quickly ... you're much more likely to do so). Therefor battery wear can actually be significantly reduced if you follow the instructions. And for a real-world anecdote: I have a Nexus 5 that is about 15 months old. I routinely recharge during the day (I'm a heavy user) at 2.1a until I'm around 90% and I also wireless charge via my qi charger a few times a week when I'm away from a USB charger. I've done on average 2 full charges on my phone every day since purchasing it. My battery still retains 2276 out of 2300mah capacity. Batteries can be handled properly and last MUCH longer that way.
  • Smartphones of this day and age have regulators that stop allowing as much energy into the phone at a certain amount of heat. They also regulate to slow down the charge as it tops off, and completely shut off at full charge, thus killing the myth that leaving a phone on charge all night will hurt the battery. Thanks Stanley, that's exactly what I meant. Currently the only study done points towards the opposite being true. Again it's pretty new tech so, not much to go off yet.
  • I'm going to let you guys fight this out while I charge my phone.
  • I don't think anyone here's fighting...
  • If this was a knife fight, the opposition basically showed up with a spoon.
  • You're right. Other guy is wrong. Later Posted via the Android Central App
  • Ah, the typical "Cole" contribution. So glad you could grace us with you're presence Posted via the Android Central App
  • I'm sure using a case generates more heat within the phone as well, but I haven't heard people clamoring to not use cases because of it, or batteries dying because of it. Posted via the Android Central App
  • This sounds great. however, after reading more closely I am confused about the "backward compatibility" ... So I have Qi chargers now. i have QuickCharge 2.0 outlet chargers. I plug 1 into the other now , and it doesn't fast charge. What exactly is going to change in the future to make that work? Are there NEW QuickCharge 2.0 chargers in the future from which this will work?
  • This is exactly my confusion as well.
  • Apparently according to the article it needs to have a device that supports Qi QuickCharge 2.0 which is currently not a thing, I guess.. Maybe with QuickCharge 3.0? Also, a bit off topic. Whatever happened to Qi 1.2? The spec was released almost a year ago. They said Qi 1.2 chargers would go on market by the end of 2014. Yet I haven't read anything about it ever since, and it seems like noone else cares.
  • You're correct. New qi chargers will be able to utilize the 9V and 12V functions of your quick-charge adapter. Current ones can only use the 5V function.. Backwards compatibility will mean that future qi Quick-Charge chargers will still be able to safely charge older non-quick-charging qi devices.
  • Thanks! that makes it much clearer for me. Appreciate it!
  • Nothing confusing about it..The new Qi chargers (in the future) will work with quick charge tech (current quick charge standard) to charge new phones faster. You can't make you your current Qi charger charge faster but the future ones will be backwards compatible with the older slower (current) Qi products, the same way I can plug in my Bluetooth headset into my quickcharge charger..
  • Thanks, I get it now. Not confusing though? " ...and backwards compatibility means all of your existing Qi hardware will support this new capability as soon as your have a device that supports the new feature" "All of my Qi hardware" to me meant my Qi chargers, which is NOT what is meant here apparently.
  • I agree with you. Sounds like the phones are going to have to support this feature to work on our existing QI PADS.
  • You'll need to buy a new Qi charger designed to the new standard. And probably a new Qi back, or coil, for your phone (or a new phone). It's unlikely any phone designed to the Qi 1.0 spec will support 2.-, and certain no 1.0 charger is going to ever output more than it does now. The article is poorly written by someone who doesn't understand the technology very well, and didn't bother to do any research to learn it.
  • I recently purchased Aukey 5 Port USB Desktop Charger with Quick Charge 2.0. It charge my devices faster than the charger that comes with their boxes especially one of my devices has QC 2.0 compatibility, the BlackBerry Passport. Stick to topic, I wonder if it will also work with Qi chargers so I tried it with a friend's smartwatch that comes with it. I'm not familiar how Qi chargers charges their devices but as the owner's experience it is faster than he ever seen! So there we go, I think it all might be possible not likely the wired one but at least it should work.
  • Now that is very interesting. I never cared for wireless charging g even though my phone is capable of it, S6, buy why would I sacrifice fast charge just to charge wirelessly (if that's a word...). This is interesting Posted via the Android Central App
  • 0 to 60 in 30 mins? Now I know the g4 didn't really have qc. Takes over 50 minutes to go from 0 to 60 with fast charger :(
  • Not sure how you're managing that given the following: "The manufacturer says that while it did not do anything to have its new flagship support Quick Charge 2.0, the functionality is built into the Snapdragon 808 SoC. But that is only half the game. Quick Charge 2.0 requires a special adapter that supports the technology. LG does not offer this in the box with the phone. If an LG G4 owner buys a Quick Charge 2.0 capable adapter, the phone will indeed recharge up to 60% in just 30 minutes. If you go to Qualcomm's website, you can see that yes indeed, the LG G4 does come with Quick Charge 2.0."
  • Hopefully the Note 5 will support quick charge 2.0 qi charging. The current qi charging is so slow that it's almost not even worth using. Posted via my Note 4...(AC App)
  • that was my issue, there was no point in QI until this comes about.
  • Is this related to Freescale's Qi that was announced back in December? Posted via the Android Central App
  • No extra costs here.. I already have two quick chargers from two Samsung devices. Plus a third I got for almost nothing from Samsung (with discount code). Pretty much all I need as the battery in my main phone (Note 4) lasts all day and then some plus I have spares for emergencies.. Not to mention I still have plenty of 5V/2A chargers plugged in everywhere that still charge my phone plenty fast as well.
    By the time I upgrade my devices I'll have more quick chargers to add to my collection lol
  • Glad I waited to start getting Qi chargers all over my house, car, work
  • I don't understand the backward compatibility thing? How did the charger get updated? Posted via the Android Central App
  • It says devices that support quick charging. So since my S5 doesn't support it, even if I get a Qi back, it will still only charge slow?
  • Correct, this will only work for Devices that support QuickCharge 2.0
  • So example the s6 will work right. Article not super clear as it suggest newer devices will be needed. Posted via the Android Central App
  • Correct, given what we have to go off currently from Russel and the WPC any device that supports QuickCharge 2.0 such as the S6 or LG G4 Should be able to do this once it's released.
  • I'm confused by this issue. It sounds like current phone options do not support it, according to this article. "It's unlikely this is something that can be activated with a firmware update, rather something you'll be able to look forward to on your next smartphone."
  • I'm confused as well, some verbiage points to any device with QC 2.0 getting to use this, other verbiage points to only new hardware yet to come out will use it....I guess we shall see!
  • This is what I've been waiting for in wireless charging. I wonder if illiterate people get the full effect of alphabet soup
  • excellent news, I'll get more use out of my maligned Nexus Charging Orb
  • My old Blackberries had a form of wireless charging years ago. It was a stand you simply set your phone on and the BB had sensors on each side of the phone that made contact with the stand. Easy to just set phone on stand w.o. having to plug in a wire.
    Our toothbrushes have had inductive (wireless) charging for years. Why are cell phones so late w. this technology? Stll can't figure out if I get a G4 if it will have wireless charging or whether it "may" have that feature with an OS update.
  • Can I buy now this charging tech QI version 1.2?
    Fore example for under a table, desk etc..