I'm surprised there is not more talk about this. I suppose it's because the phone did not ship with a 2.0 charger. However, I bought one on Amazon and Wow is it amazingly fast!!
Quick Charge 2.0
- Thread starter CollegePartyBoy
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chowdog13
Well-known member
I didn't know they began selling them. Roughly how much faster would you say it charged, or have you not compared them?
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Posted via Android Central App
csleverette
Well-known member
Skyway
Well-known member
HTC hasn't released them yet, but you can use any 2a wall charger and the phone will charge with quickcharge 2.0
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Posted via Android Central App
Can you affirm whether the block or USB portion is what makes the charger quickcharge 2.0 compatible?
Posted via the One successor to the One
Posted via the One successor to the One
mhunter6378
Well-known member
The M8 supports Quick Charge 2.0, it's a combination of the processor chip and charger that makes it work.
New HTC One supports Qualcomm Quick Charge 2.0 | Android Central
Qualcomm? Quick Charge | Qualcomm
Skyway
Well-known member
It's the processor that chooses either quickcharge 1.0 or 2.0. You have to have a wall unit that outputs at 2a and your processor will enable the quickcharge. You might need a specific cable too, but I can't confirm this
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I have a 2 amp charger in my car and at home. The difference in charging speed while notcible isn't as fast as I thought.
Sent from my HTC One_M8 using Tapatalk
Sent from my HTC One_M8 using Tapatalk
Anyone have a link to the product (Amazon or otherwise)?
How much faster is it really? I mean, the battery life is already really good on this thing, but a quicker charge would serve me well.
How much faster is it really? I mean, the battery life is already really good on this thing, but a quicker charge would serve me well.
Thanks! I understand the processor is capable. Just curious about the accessories part because I need a new car charger and just want to ensure if I'm spending money it's on a setup that will provide quickcharge 2.0. I my opinion it will be most beneficial in a 10-20 min car ride when I will not be using my phone anyways.
Posted via the One successor to the One
Actually I believe the output 1.5A or 2A supports quickcharge 1.0 but the actual wall charger has to have quick charge "2.0" compatibility so that both the chip inside the phone and the chip inside the charger know to use "2.0" as the charging speed. The amps a charger outputs doesn't have to do with the quick charge technology. For example a phone that has 800 chip or higher will charge in "1.0" mode regardless of what amps the charger is because to charge in "1.0" only the phone chip is needed but for the phone to charge in "2.0" mode the phone and charger have to have the "2.0" mode compatibility chips inside of them.
http://www.qualcomm.com/media/blog/2013/02/20/qualcomm-quick-charge-20-less-time-charging-more-time-doing
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According to this press release:
Moreover, this other press release says that the standard supports up to 60 watts. This is pretty awesome. This means raising the voltage to 30V if you wanna stay at 2 Amps, or 20V if you raise it up to 3 Amps. I don't think they would dare to use 15V/4A - that would be too much current for the tiny cables.
Here it says about wall chargers to be released in early 2014. However, where I really need speed charging is in my car. I cannot find anything about car adapters.
So, looks like the trick is increasing wattage by raising the voltage beyond the 5.0 USB standard. This is reasonable, as going beyond 2 Amps is pretty harsh on those tiny USB cables. That same article says that their reference chip can output 5, 9 and 12 volts at max 2 Amps. 12x2=24 watts. This is nice.
Moreover, this other press release says that the standard supports up to 60 watts. This is pretty awesome. This means raising the voltage to 30V if you wanna stay at 2 Amps, or 20V if you raise it up to 3 Amps. I don't think they would dare to use 15V/4A - that would be too much current for the tiny cables.
Here it says about wall chargers to be released in early 2014. However, where I really need speed charging is in my car. I cannot find anything about car adapters.
badelhas
Well-known member
Wikipedia says usb 2.0 cables have a maximum current of 1.5 amp, how is it possible to pull 3 amp? Does the HTC rapid Charger or the Motorola turbo Charger come with special cables?
I bought the Incipio quick charge 2.0 car charger and it didn't come with a cable so I have no idea if I have to buy one (and which one to buy) to get the full potential of the technology.
They don't come with special cables, and they do provide much more rapid charging, so either the analysis above is wrong or the cables can handle much higher amperage.
Posted via the Android Central App
badelhas
Well-known member
Can you please install the App Charging Report and check at which current does your quick-charge 2.0 charger work?
Thank you
Thank you
Mooncatt
Ambassador
I have seen some micro USB cables for sale online that are spec'd with larger power cables to handle higher currents. They weren't advertised as QC2.0 compliant, just a more generic heavy duty or higher power capable type description.
But that's completely not required for the feature.
Posted via the Android Central App
There is a lot of philosophy in this thread.
If you are curious and lucky enough to have one these chargers, the only way to know the thruth is by finding a cheap microUSB cable, cutting it in the middle and using a multimeter to measure voltage (across the two wires and current (passing by one wire). Ask help from a friend if you don't know how to do it.
The measures should be taken when the charge of the phone is low (15%), medium (50%) and high (85%). If it works as usual you will notice peak power (current or voltage) at 50%. But this system is new, so it would not be scientific to make prior assumptions.
Be careful and do the test away from flammable objects. A tiny cable might get warm or hot.
If you are curious and lucky enough to have one these chargers, the only way to know the thruth is by finding a cheap microUSB cable, cutting it in the middle and using a multimeter to measure voltage (across the two wires and current (passing by one wire). Ask help from a friend if you don't know how to do it.
The measures should be taken when the charge of the phone is low (15%), medium (50%) and high (85%). If it works as usual you will notice peak power (current or voltage) at 50%. But this system is new, so it would not be scientific to make prior assumptions.
Be careful and do the test away from flammable objects. A tiny cable might get warm or hot.
Cutting it in the middle? What are you talking about? All I'm saying is that a SPECIAL cable is not required for QC2.0. A regular (high quality, uncut) USB cable works just fine.
Posted via the Android Central App
badelhas
Well-known member
I just tried the Incipio quick charge 2.0 car charger and the small micro usb cable (charging only) that came with an anker Bluetooth speaker that I bought a month ago and I checked the current with "charging report" app and it was pulling only 1. 3 amp.
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