Gadgetory

hey everybody my name's Gary Sims from Andhra thority now recently Qualcomm announced its latest iteration of its quick charging technology quick charge 3.0 and today I want to take a look at what is quick charging and specifically what is quick charging 3.0 so if you're ready let's go now one of the things that probably noise all of us is our battery life have you found yourself stuck somewhere away from a charge and your battery's down to 10% and you don't know whether you're going to have enough energy left in the battery till you get home and things like that well there are different ways that manufacturers are trying to solve this problem one of course is there's ongoing battery technology research and other ways we're trying the companies trying to build better phones better CPUs better displays another approach is to have a quick charge technology which allows the phone to be charged up very quickly therefore if we're about to dash out somewhere we can just plug the phone in and a few minutes later it's got enough charge to keep us going until we get home now we need to talk a little bit about charging technology before we go any further the modern smartphone when it charges it charges in two phases the first phase from zero to about 80% can be done with quite high levels of energy and the energy just pumped very quickly into the battery however there has to be a trickle charge at the end that last bit from 80% to 100% has to be done at a much lower level of energy that's just the way the batteries work now if you'll notice that when companies like Qualcomm and some some talk about quick charge what they all talk about is how quickly they can get to 80% we can charge it to 80% in 30 minutes or in 40 minutes or whatever the numbers they are quoting and that's because that first initial stage is very easy for them to pump in that energy however there isn't yet a technology that exists for that latter 20% and sometimes that 20% can be actually as long as the initial 80 percent or maybe even longer now on your computer you've got a USB port now USB ports used to be the standard way for charging up those users or plug your phone into the USB port and it charge up but of course USB has only five volt and not 0.5 amps now that was fine for phones of a few years ago with much smaller batteries much more displays however today we've got big 5 inch 6 inch phones that have massive 3000 4000 5000 million power batteries and they need a lot more energy to charge them up so a modern-day phone will come to this own charger that rated at 5 volts and probably something like 2 amps now that if you've worked no bit about physics that gives you a total of 10 watts energy 2 times 5 10 watts of energy that you can pump into your telephone now quick charge works with more wattage than that by using more than just fire bolts it might use 9 volts or even 12 volt now even if your phone has quick charge even if your phone uses its own charger at 5 volts in terms you still can actually plug it into a USB port and let me example my Galaxy s6 will charge using Samsung's charger in about 1 hour and 20 minutes however I can plug it into the USB port on my computer and charge it at 5 volts not 0.5 amps which is 2.5 watts compared to the 10 watts of a 5 volt 2 MB charge of 2.5 volts and actually that will take a 6 hours take 6 hours to charge it that way we're talking about 1 hour and 20 minutes if you use Samsung's charger now this is where quick charging comes in qualcomm invented this idea that it could charge at higher rates than just 10 watts now i'm going to read to now some of the numbers just so that you know what kind of different levels we're dealing with so a normal USB port is 5 volts no point 5 amps that's 2.5 watts a normal charger for a modern-day smartphone might be 5 out 5 volts and 2 amps which will give you 10 watts now quick charging will give you 9 volts at 1 point 6 7 amps it's less amps less less than 2 and so on point 6 7 amps and it will give you 15 watts of power that will get pumped into your battery and quick charge - in fact we'll even work at 12 volts and if you have 12 volts at one point six seven amps that gives you 20 watts of energy so what happened with quick charge 2.0 is that coal come invented a system where they could get up to 20 watts of energy into the phone quick charge 3.0 is basically the same idea but there's one important change with quick charge 2.0 there were those just set voltages nine volts 12 volts 5 volts 1.6 7 amps and all those numbers I just read you but now with quick charge 3.0 there's an intelligent system in terms of negotiation system that allows the phone the charge to talk to each other and ask for exactly the Volks that the battery requires exactly the amps at the battery requires for its current stage of its charging cycle that means that the phone won't be drawing more than necessary won't be taking more from the charger than it has to which means that that extra heating up effect won't happen and it tries to get rid of the energy it doesn't need now before I go on will tell you a quick slightly comical story that happened to me this summer friend of mine vey dear friend of mine was I was with him and he didn't have a charger for his phone and he found a child he didn't talk to me he's found a charger a USB charger he plugged it in and he came to me little while later I said my phone isn't charging what's wrong with it have I broken my phone I'm gonna have a look at it we checked the cables and then I thought to look at the reading on the actual charger and it was an old iPod charger and it was rated at something like naught point one amp or something it really was quite tiny and of course it wasn't enough energy to actually start charging his phone but there was another charger that he had that looked identical to that one but when you read the label you saw it had a great different output so it's always important to check what's on the label of your charger because they're not all the same one good thing is though is if you charge if you put in a phone into a charge of it's too big for it if it's like a 2 amp one but you're throwing needs one hand for example it doesn't matter it won't blow it up the phonee draw from the charger what it actually needs but conversely if you stick a bigger charge it won't any quicker the phone is the thing that draws the current from the charger the phone is a thing that asks for the current so that it can charge up its battery so you're pretty much safe to plug in just about any charge in fact I've even plugged in the quick charger charges into a normal phone that doesn't have a quick charging and it works absolutely fine and I've tried quick charges on Samsung products and Samsung charges on quick charge approach and they all work fine they're all basically interchange because the last thing these companies want is a story of someone plugging in their phone and blowing it up because they use their charge on it so it's all going to be okay so back to the Anur technology the thing about it is is now the phone and the charger can negotiate with each other and the phone is able to ask for anything from 3.2 volt upwards to 20 volt in increments of 200 milliamps okay so that means it has fine control over what is able to be drawn from the charger which means that we less heat going to the phone less heat means that we less heat dissipated because your bachelor won't heat up so much and of course it saves your electricity bill in fact Qualcomm are saying that this particular new technology is 38% more efficient than a court quick charge 2.0 now one thing to note is that you're going to need a really good USB cable for this a cheap USB cable isn't going to hack if you start if your phones are starting to draw 12 volts even 20 volts of current down them you're going to need a proper USB cable and probably the one just supplied with your phone be good enough but if you ever do buy a replacement make sure you buy a quality one because that's going to be an issue of course this is all in the future there are a couple of companies that were already released quick charge 3.0 charges though they're a bit worthless at the moment cuz there are no phones that are able to use it however in 2016 maybe even in early 2016 we might start to see some phones that appear with quick charge 3.0 technology built into them well my name is Gary Sims from Android authority I hope you enjoyed this video if you did please do give it a thumbs up also please use the links above to subscribe to androids youtube channel also hit you'll find links to our social media and my social media links also please use the comments below to tell me what you think about quick-charge 3.0 technology and if you want you can gripe in general about batteries and battery life that's absolutely fine and as for me I'll see you in my next video