We're hooked on our smartphones like never before, and battery life, charging and staying powered up still remains a huge concern. Learn everything you need to know about Quick Charge 3.0! Read more: www.androidauth...
I honestly don't get the hate towards this guy. I find his videos very educational. I couldn't care less about the sound. It isn't any near as bad as some other videos I see.
Good summary. Just one thing I'd like to correct, Watts is a measure of power, not energy. Energy is measured in Joules (J). Watts are Joules/second. Voltage is energy per unit of charge (Coulomb). Current is units of charge per second. Hence voltage*current = (energy/charge) * (charge/second). The charge term cancels out and you get energy/second or Watts.
+Ridho Hidayaturrochman Doze doesn't necessarily increase battery life while using the device. You will still get the same SOT. All Doze does is decreases the amount of battery that drains while the device is not in use so in theory, your device should easily last as long as an iPad lasts when not in use.
+ANTHONY SCAGLIONE and thats what matter when people choose a smartphone, you want to spend 500-700 on a smart phone that stutter or lag when you use it?
Old but still actual video! One thing - the cable quality is not so important for Qualcomm's Quick Charge, because it maxes out at 2A(even 1,67A in higher voltages, as you pointed out). And most cables support that kind of current. Huawei's SuperCharge uses 5A of current, so if the cable is not original(and VERY thick) it can't work.
It would be nice if you guys made a weekly technical video about phones. Not enough info is given to the normal consumers about the engineering and research that goes into making these products.
to be honest, i never worry about my battery life anymore. i no longer charge over night. I charge my Xperia Z3 Compact about 2-4 hours a day while im at work. It lasts until the next day with 40% or more left.
it is years late but in order this "quickcharge" to works we need : 1.) A Smartphone capable of certain quickcharge (2.0/3.0) 2.) A Powerbank capable to deliver quickcharge 3.) A cable that also supports certain quickcharge
+Berto Lodge that's not the issue here, I'm assuming people disliked it because trickle charge doesn't start at 80%, before 60-80% it is the constant current mode and after that it is the constant voltage mode and when it reaches at 97-100% trickle stage starts. So there was a bit of wrong information there. Another thing is he said you can use a high current rated charger with a phone that has a battery with lower ratings which well you can use it but it is not 100% safe, the internal battery charging circuit that takes in the 5V and converts it to about 4.2V often provide 2A or more, and if your battery is like 1500mAhr then you can overheat it.
Awesome and informative! Can I ask, is there a diff between the supplied Samsung quick charger (note 4) and other 3rd party quick chargers? Since when I plug in 3rd party chargers it never saya quick charging
Good, informative video on Qualcomm Quick Charge 3.0. I would also expect the compatible USB cables are explained alongwith in terms of AWG, so that the viewers can benefit more. Nevertheless, very well explained Garry Sims. Thumbs up for sure.
The reason why batteries have a super fast initial charge and then a slow trickle charge is less to do with the inherent physics behind the battery and rather is an intentional restriction put in place by manufacturers. This restriction is in place only due to the lithium ion technology used in the batteries most common today. Lithium ion batteries do not handle fully charging/discharging as well as older battery technologies and if overcharged they tend to experience a decrease in battery life (not severe but noticeable over a few years). The trickle charge phase is implemented to mitigate this.
Well my wife and I overcame this problem years ago. I used the information I was learned growing up and soled the problem. So I will tell you how we did it.
..another small thing, when Garry, you say '5 volts and 0.5 amps' in your own way - five volts and O point five amps, it becomes difficult to understand by many because most like us have learnt '0' to be said as zero and not 'O'. Just a thought. I did like your video however.
Helpful video. Does the actual cable matter much currently? I have a wireless charger that only seems to like a single cable, out of the 10+ micro USB cables I have everywhere, and it's a fairly short and pretty cheap looking cable. Any other cable it flashes to indicate that it's under 2amps
In preparation of the video, a few rehearsals should have been done. The contents need addition or modification. He mentions much later that a common method to lengthen battery life is having larger batteries. No mention of replacement batteries. Graduated shutdown technologies (OLED B-W screen & dimming, bare-boned background processes) are used on my Samsung Galaxy s6). There are other methods & technology used in existing phones that he did not mention.
amazing video as usual Gary. very well derailed and very clearly explained with lots of depth. thanks for your hard work. only issue was audio very loud but I read you are trying different set ups so don't worry about it hope you do find the sweet spot.
Very nice video. The charger that came with my phone indicates three different outputs, 5V/2,5a , 9V/2A and 12V/1,5A. I assume for the latter two the wattage is the same, but I am wondering if there is a quality difference, regarding for example the performance of my battery over time.
Quick question... is there a QC-capable battery pack? I know they many support QC as an output standard. But is there one that supports it both for input and for output? I'm looking at the HTC VIVE wireless adapter and I'd love to be able to buy two batteries and swap between quick charge capable batteries instead of having to rotate through 4 slow charging batteries.
You waited till the end to say 3.0 charging phones won't be out till 2016 and it is now 2019? I have a Galaxy S9 plus. Does it have Quick Charge 3.0? Also, you mentioned needing to buy a quality cable to use 3.0, but you didn't say what qualifies as a quality cable for 3.0 charging!
12v is not a current, it is a voltage and you can't say that it flows through the cable. A cable can only give problems if the current(the amps) is to high, it as resistance so there will be a voltage drop across it. The higher the voltage, the lower the current that is necessary to provide a certain amount of power. Also if a cable drops 1v out of 3.2v it will be relevant, if it drops 1v out of 20v it doesn't really matter.
I have a LG G5, will it use a quick charge 2.0 battery for charging? I bought a aukey 20000mah quick charge 2.0 powerbank that is taking ages to charge up before first use.... almost 24 hours now ... I have tried all the chargers (LG is 1.8A, HTC was 1.5A) and am using the one from my Galaxy Tab E 9.6 tablet which is a 2A. I hope the battery charges as I would like to use it with the G5 for when I am out and about and need a quick boost.
At 4:39 minutes there is the power comparison combining voltage and current. But the speed that makes the battery recharged is the amount of current that is drained through the recharger and not the combined power, is not it ?!
@Android Authority: Does it matter if one end of the cable is USB A or C? Or refrased: Do i need a C to C cable to charge at full speed or is all of the high quality A to C cables good enough? Like the Anker Power Link :)
Does quickcharge 3.0 work on a micro b phone? Micro b is basically the standard for old phones, and only semi newer ones are using the micro C. Do I need a special cord?
Thanks for the vid, very informative as always! Just a side note at 0:36 another solution would be to have a removable battery (and yes, you can have that and at least an IPX7 rating for the wild pool/beach parties or shower singing sessions that everyone seems to suddenly love these days when they are willing to forgo removable batteries so easily for an ~$800 flagship that can easily last for 4 years before getting hardware-outdated [just recently switched out my old trusty GS4 daily driver for a V20]). You can throw a couple of removable batteries in a charging hub by your night stand and throw them in your backpack/briefcase/jean pockets when commuting, etc. and problem solved! I can go without a single charge or cable for a whole week at a time; 0% to a 100% in less than 2 minutes with my LG V20 (and I can quickly pop in my waterproof case whenever needed of course). Just adding my two cents on the matter of finding an easy practical solution to an expensive issue
The talk about a good cable at 7:59-8:01 is OK, but "volts of current" indicates no concept of how electricity even works. Amps alone pushed through a wire is what determines the diameter of the conductor needed. USB is 5 volts. The reason it QuickCharge needs to find a charger that is 3.0, is because it wants to supply the same amps or less across the same cable at voltages that are far above normal USB. If they find each other, the smart charger needs to be able to shift to supply it. If there is not request from the phone or response from the charger, it doesn't happen, and everything stays at 5 volts. If it does find it, it can take the same current across, and then if taken across at 20v, multiply the current times 4 to charge the battery with. Version 3.0 can indeed ask for down to 3.2 volts, but a normally charged Li-Ion battery is 3.7 volts. With intelligence like that, it MAY also be better at keeping your battery from overcharging overnight and shortening the battery life but I have not found anywhere where Qualcomm has committed to this. It also adjust based on battery temperature. Not of this matters today because the newer phones now come with USB-PD (USB Power Delivery) Google/Android didn't want to favor Qualcomm or any other vendor. USB-PD is very much like Qualcomm 3.0 except it is implemented at the USB hardware level. This means it doesn't matter which processor the phone uses, making the same technology work across any processor on any phone it is implemented on. I have found no place where USB-PD commits to not overcharging either. So, it may be that fast charging does theoretically reduce battery life to some degree, but intelligent charging probably makes that up and more. If these intelligent charging systems are intelligent enough to cut it off when the phone is fully charged after you plug it in at night, it is far more likely that it extends battery life due to its intelligence. Your phone knows when to tell you to disconnect the charging with a regular charger, so IMO it would make sense they could inform an intelligent charging system to stop charging until the voltage bleeds down from 4.2 to 4.0 before it allowed a trickle again. The scenario affecting battery life the most is charging after the battery is at 100% because unused energy turns into gassing, metal-plating, and heat.
Hello so I have a question so i just got a HTC 10 and I have a 5V - 2.1a external battery i would use with my htc m9 and I want to see if its ok to use with the htc m10. Also i am reading all kinds of different responses to using anything that is not HTC's 3.0 quick-charger. that it will damage your phone if you use anything else but HTC's. I want to know what is safe to use with this phone. Thank you
Very good explanation, thanks! I really like Anker chargers/cables for QC3.0. Anybody else disappointed that the Note 7 isn't QC3.0 despite being a SD820?
You should do a update and talk about another very important thing. You didn't talk about down side of fast charging a lithium battery. Especially for users who may replace battery with non OEM battery as quality and capability matters as well. This is all safety issues, as electric RC users know, lit him batteries can be dangerous when charged at high C rating.
My zte axon 7 has quickcharge 3.0 and it heats quite a bit. Shall I worry about this? Is my battery gonna get damaged by the heat it produces while charging?
I know this video was maybe 15 months ago but I do hope you will use manual settings on the microphone in the future. Good video though but kept making jump when the auto microphone sound jumped in. Okay when it settled down though but just made me jump a bit a few times :-)
innovation on processors, camera, screen, RAM, charging, etc but nothing on battery endurance. years later we're still using lithium ion and/or polymer.
Ok so I have a generic power pack 24000mah [91.7wh] . I want to be able to charge this pack as quick as possible. I have a wall charger that says 9.0v 1.67 or 5.0v 2.0a and just a generic standard cable. So what do I need to charge this pack asap . Thank you
Great vid! Though I think I caught a few small mistakes, 4:40, "you can get up to 20W of energy into the phone" and at 7:55, "12V, or even 20V of current" (I think you meant power and voltage respectively lol) No biggy though! For the longest time I wished phones went back to the old days where there was a separate charge cable and data cable, where the data cable would be a small barrel connector or similar. Those can handle a wide variety of voltages and currents, depending on the manufacture, but still offer normal speed charging through the universal microUSB. I suppose that is not necessary anymore due to more intelligent methods used to set the adjust the voltage and current.
Actually I have a Quick Charge 2.0 charger from Aukey. It has 1 QC 2.0 output and 2 Aukey adaptive outputs. The QC port only charges my iPhone at 5v 1a - whereas the other non QC ports (Aukey Adaptive) charge it at 5v 2a - quick charge can be SLOWER on iPhone. Also cables make a HUGE difference - some allow 9v 2a into my quick chargeable Anker battery - other cables take that down to 5v 0.3a. Similar slow downs apply to all cables. Aukey authorised iPhone cables actually charge the iPhone FASTER than Apple's own (totally safe btw). The only way to ever really know is buy a USB volt meter and test *everything* yourself.
So a phone that can only charge at one amp can use a charger capable of delivering two amps because the phone will only pull the one amp it needs? And qc3 works by communicating with a qc3 compatible phone so the charger can know exactly how much power the phone needs and thereby avoid delivering excess power that would cause the phone to overheat? So Qualcomm invented qc to create a problem that didn't exist previously (phones overheating by chargers delivering too much power,) while simultaneously using the same technology to solve the problem they just created? I'm currently using the first qc compatible phone I've ever had, and it is a nice feature that it doubles as a hot plate. Thanks, Qualcomm! Fortunately linus tech tips has a video about water-cooling phones.
I'm convinced right now,,, If I wanna to know if this charger has high speed do I look for Amh or watt ( volt * Amh)! Another q plz Which one is faster 2.4 Amh and 5 V Or 1.67 Amh and 9 V???? - 2.4 Amh * 5 V = 12 does that mean it supports quick charging or it should have QC chip? Thanks a lot.. You helped me🌺
What is the difference in charging a phone (Qualcomm QC 3.0 supported) and a phone (fast charge supported) and a phone (without fast charge support) using a Qualcomm QC 3.0 Technology enabled smart charger ?? Would you please explain...
Hey Gary, do you think that the current crop of Qc 3.0 devices are charging to their full potential? It seems as though the charge times could be faster .
i noticed this on my phone it has a 4000Mah battery bundled with 2.0A charger it charges pretty quickly from 15 - 99% in less than 2hrs but it always need to trickle charge by 30 mins. before it reaches a 100%, Thank you for the brief explanation! now I understand why 😀😀
This is great. But we shouldn't forget that a lot of other things that aren't phones require USB charging. For example, my wallet has a USB battery charger built in (Its from Nomad and it's really useful!) Can I plug my wallet into a QC 3.0 port? We mention it's ok to plug any phone into any port because the phone will only take as much power as it needs, but I doubt my wallet can dictate how much power input it can handle!
"12V even 20V of current" .. You are mixing your voltage and current. A cable that can pass 1.5A will do so even at higher voltages (that is the reason why power stations use high voltage output to the grid, for example). At such values, even sparking isn't an issue, since it is too low a voltage for that.
+Jerome Yudiet No, it's a built-in thing. Your phone has to come with fast charge 2.0 to be able to use fast charge. Most of the new phones of this year all have fast charge, but phones of previous years do not. Fast charge basically lets you charge your phone much faster. But if your phone doesn't have the capability built-in, then it will always charge at a normal rate like the guy said in the video.
+Talal Siddiqui okay thanks.. I was hoping I could use it on my nexus 7 2nd gen to charge it faster but I guess it won't work on my device... tnx anyway
Question: My Mate 20 phone uses Huawei's SuperCharge quickcharging format and the stock charger says it will push out 5V 4.5a max. Now if I use a Qualcomm QC3.0 charger, will I get 5V 4.5a into my phone? Another thing to point out is that not all USB microUSB and Type C cables are made equal. Although they all look the same, different microUSB cables seem to have different amp ratings. Some will do 2a, others can do 2.4a. Type C ones even got those purple ones, heaven knows what that means.
Here's the tricky answer. 1. Your Mate 20 won't charge fast if you use Qualcomm QC3.0 charger, simply because your phone is not supporting to this standard. 2. Yes, not all USB cable are made the same. But here are some facts: i. Qualcomm Quick Charge actually works regardless of cable price and brand. If the cheap cable, even just $1 dollar tested can perform quick charge, then the cable will just work without any issue, meaning the $1 dollar cable is good in quality. It works the same on Micro USB and type C cable, micro USB can do the same 18W fast charging as type C, without any degrade or slow down. ii. Comes to the part where Huawei cheated, Huawei's Super Charge is 22.5W, and on Mate 20 Pro is 40W. These only can be achieve with special "proprietary" cable. Yes, proprietary type C cable that has extra pin made into the cable that only works on Super Charge compatible phone and charger, which actually does not conform to USB standard. This is similar to how OPPO VOOC and Super VOOC works. It doesn't means their cable is the best in quality, but simply just means their cable are proprietary cable that only works on their devices. Then, fun fact, I tested a type C cable from one smartphone on Huawei Mate 20 Pro with the Huawei 40W charger, the Huawei Mate 20 Pro actually charge at 15W up to 18W, meaning the basic Huawei fast charging actually does not pick cable (much like how the Qualcomm QC works), it works on any type C cable. But for achieving 22.5W up to 40W, you need Huawei proprietary type C cable.
As far as using any charger with any phone, it's important to note that you should still be using chargers from recognized, reputable companies. The job of a phone charger is to transform the high voltage AC from your house to a low voltage DC to feed to the phone, and to regulate the current. Generic, cheap chargers have cheap hardware, which can have poor power regulation and damage or degrade the phone over time.
hey got a good knowledge from ur video thanks for it ! I have doubt will Xiaomi Mi 4 get the 3.0 charging speed ? I knw v cn use d adapter bt then will v get tht speed ?
