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  • 1 Post By BasicDroid
  1. Thread Author  Thread Author    #1  

    Default HTC One (M8): Quick Charge 2.0

    From what I understand the standard wall charger that comes with the M8 is a 1.5A charger, which doesn't support quick charge 2.0. If I buy a 2.1A wall charger from Amazon will this be powerful enough to take advantage of the faster charging or will it just be throttled down to what the standard charger is?
    Thanks for your help!

    Edit: Also, is it safe to use a more powerful wall charger than what came with the phone?
    Last edited by NotJustAPhone; 03-29-2014 at 12:22 AM.
  2. #2  

    Default Re: M8 Quick Charge 2.0

    I think there is supposed to be an update coming soon to enable quickcharge 2.0 and then it can be able to make use of those higher V chargers.
  3. #3  

    Default Re: M8 Quick Charge 2.0

    You can use whatever charger you want. I use an 8amp charger and the devices just takes what it needs. It depends on how htc programmed it but usually, devices won't charge any faster than the stock charger

    dpham00, Android Central Moderator
    Sent from my Verizon Samsung Galaxy Note 3 via Tapatalk Pro
  4. Thread Author  Thread Author    #4  

    Default Re: M8 Quick Charge 2.0

    Darn, I just spent 15 bucks for a 2.1A charger for nothing...

    Sent from my Nexus 7 using Tapatalk
  5. #5  

    Default Re: M8 Quick Charge 2.0

    Quote Originally Posted by lattemaker View Post
    Darn, I just spent 15 bucks for a 2.1A charger for nothing...

    Sent from my Nexus 7 using Tapatalk
    Not really. If you read my comment you'd see that an update is coming to enable it. So...at the moment it was a useless purchase but when the update is out it will become useful.
    Or I may be wrong and it actually already uses quickcharge 2.0. Either way, you didn't waste your money don't worry.
  6. #6  

    Default Re: M8 Quick Charge 2.0

    I can't remember where I read but I think it's enabled to use quick charge but for some reason htc didn't include a quick charge wall charger but they are suppose to release one at some point
  7. #7  

    Default Re: M8 Quick Charge 2.0

    Quote Originally Posted by jev425 View Post
    I can't remember where I read but I think it's enabled to use quick charge but for some reason htc didn't include a quick charge wall charger but they are suppose to release one at some point
    I think this is right. Can't fathom why they didn't include a better charger in the box though. Can somebody compare speeds of the stock to a higher Amp charger?

    Posted via Android Central App
  8. #8  

    Default Re: M8 Quick Charge 2.0

    From what I've read, this is correct.

    Let us know when you get it, I am curious to see if it works.
  9. #9  

    Default Re: M8 Quick Charge 2.0

    I have been doing some reading and I found that quick charge 1.0 is built into the phone chip so any charger that you use that's relatively newer will take advantage of that but I imagine the higher the amps the quicker it charges it. To take advantage of the quick charge 2.0 that this phone is capable of you need a "special" charger that has 2.0 capability built into it as well
    Last edited by jev425; 03-29-2014 at 04:21 AM.
  10. #10  

    Default Re: M8 Quick Charge 2.0

    Quote Originally Posted by Love Divine View Post
    I think this is right. Can't fathom why they didn't include a better charger in the box though. Can somebody compare speeds of the stock to a higher Amp charger?

    Posted via Android Central App
    Because the battery is non removable. The faster you charge a battery, the more it's going to degrade it. Lithium ion batteries have a very limited life, so instead of making it charge up really fast and not last as long, they opted to charge it a little slower so it well last a little longer

    Posted via Android Central App
    Quote Originally Posted by Ccota08 View Post
    I keep reading your posts in Bender's voice and it's amazing.
  11. Thread Author  Thread Author    #11  

    Default Re: M8 Quick Charge 2.0

    Quote Originally Posted by jev425 View Post
    I can't remember where I read but I think it's enabled to use quick charge but for some reason htc didn't include a quick charge wall charger but they are suppose to release one at some point
    I just read this as well. I'll report back when I get my 2.1A charger and let you guys know if it does in fact charge faster. Although I must say, last night was the first time I charged my M8(I got it mid-day yesterday) and I was surprised at how fast it charged with the stock charger and an aftermarket two meter usb cord.
  12. #12  

    Default Re: M8 Quick Charge 2.0

    Quote Originally Posted by Skyway View Post
    Because the battery is non removable. The faster you charge a battery, the more it's going to degrade it. Lithium ion batteries have a very limited life, so instead of making it charge up really fast and not last as long, they opted to charge it a little slower so it well last a little longer
    I believe you're wrong on that... Old-style batteries used to degrade in that manner. If you remember, that's why the manual always told you to do full charge/discharge cycles (and a 100% charge on first use). Newer style Li-Ion batteries perform well for a fixed number of charge cycles then degrade rapidly. That means you can charge/discharge as fast as you like. You also get no penalty for only charging to 25% all the time as it counts as a quarter cycle every time.

    Of course, the more power you use, the quicker the battery will die.

    I normally hate to quote Wikipedia but the article sums it up nicely...
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  13. #13  
    badelhas's Avatar

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    Default Re: HTC One (M8): Quick Charge 2.0

    Great news: Quick Charge 2.0 has FINALLY arrived (after more than one year afeter beeing announced)

    Quick Charge 2.0 has arrived | Qualcomm Snapdragon Processors

    No news on specific HTC One M8 accessories, though. Most of the examples given are from Asian Carriers and Pure Gear one dosent seem to be selling theirs quite yet... but I sure hope to see something from HTC soon.
  14. #14  

    Default Re: HTC One (M8): Quick Charge 2.0

    Some details in this article - Using a Quick Charge 2.0 charger will reduce the HTC One M8 charging times

    According to the article, fast charging is better for the battery (I always believed it was the opposite, but admittedly don't know a lot about current battery tech).

    Re: HTC shipping them with non quick charge 2.0 chargers, call me cynical but ,its probably due to cost!
  15. #15  
    badelhas's Avatar

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    Default Re: HTC One (M8): Quick Charge 2.0

    We already knew they were shipping it with quick charge 1.0 chargers and no one was making chargers with quick charge 2.0 technology yet, until now. Htc has to go through the certification process now, let's hope it dosent take too long...
  16. #16  

    Default Re: HTC One (M8): Quick Charge 2.0

    Quote Originally Posted by tryatt View Post
    Some details in this article - Using a Quick Charge 2.0 charger will reduce the HTC One M8 charging times

    According to the article, fast charging is better for the battery (I always believed it was the opposite, but admittedly don't know a lot about current battery tech).

    Re: HTC shipping them with non quick charge 2.0 chargers, call me cynical but ,its probably due to cost!
    I've read up a lot on Li-ion and Li-po (Lithium polymer, basically the same thing but different construction technique) batteries from getting into the r/c hobby, of which the M8 reportedly uses a Li-po from everything I've seen. Batteries can only be charged/discharged at a certain maximum rate known as the C rating. At 2000mAh, for example, a 1C rate would be 2000mA (a one to one ratio if you will) 2C would be 4000mA, etc. When it comes to charging, these batteries could typically be charged at a max 1C, regardless of the discharge rating. Just recently, at least in the r/c world, batteries have been coming out rated at 2C and 3C charge rates, greatly reducing charge times. This would have to be true in any battery in a Quick Charge 2.0 setup, meaning the M8 battery better be designed for the higher rates, or it could explode during charging at higher levels. I'm sure it is if they release OEM QC2 chargers for it.

    That being said, nothing in all the reading I've seen even suggests that a battery rated for faster charge rates will benefit from doing so, for longevity or otherwise. I've read that in some of the earlier design higher charging batteries, their life *may* be reduced, but that wasn't conclusive and I'm sure technology has advanced a fair bit since then. So I think as long as the battery is rated for higher charging rates, then doing so shouldn't impact the life of the battery either way as long as the battery itself is healthy.

    I'm by no means an expert on the subject, it's just battery care and charging are a huge part of the electric r/c hobbies. People will spend just as much or more on batteries and charging setups as they do on the model they are running in, both for longevity of the batteries and safety in using and charging them. Since the battery chemistry is the same as in phones, much of that advice translates to our batteries as well.
  17. #17  

    Default Re: HTC One (M8): Quick Charge 2.0

    Has anyone purchased a Quick Charge 2 capable charger and noticed a significant difference in charge time? Or are we still waiting on and update/product from HTC?
    Phone: HTC One (M8)
    Root Method: ....
    Recovery: ....
    Kernel: ....
    Rom: ....

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