HTC One (M8): Quick Charge 2.0

[Mooncatt]

Re: M8 Quick Charge 2.0

Not true , it is actually better for you to charge batteries faster. BUT any aftermarket charger you buy, that isn't issued from the company who makes the product or phone you have can ruin your phone over time when you go to a store and buy any old random charger , it may be compatible with your phone but if it's not bought directly from the manufacturer it will have a negative effect on your battery life and your phone will start to loose juice much quicker. But one reason HTC is using quick charge 2.0 is because it will extend battery life and charge your phone quicker.

Where are you getting your information from? Everything I've read from Battery University and other places about Lipo batteries say that they can be harmed if charged too fast, but that charge rates up to 1C (sometimes more, only if the battery is rated for it) have the least effect. I just purchased a QC2.0 car charger and have actually seen a possible issue with the technology that can harm the battery life, which I'll talk about in my next post.

I've also seen no real evidence of aftermarket chargers hurting anything. I've used them almost exclusively and the only issues I've found may be they don't last long or are too weak for modern phones and can't charge fast enough. I haven't seen one harm my phones or seen any posts linking them directly to harming one. I think it's mostly marketing put out by the OEM's to get you to buy their accessories.

 

[Mooncatt]

I purchased this QC2.0 charger:

http://www.amazon.com/gp/aw/d/B00LJ...ag=hawk-future-20&ascsubtag=UUacUvbUpU4495571

It works fine with only a minor issue with the casing design. As far as the charging itself goes, QC2.0 is quite fast, with Gsam showing upwards around 2.2A input at times, but it does heat the phone up more than expected. It's no secret that the faster you charge a battery, the more it will heat up, but I didn't think it'd be this much. It doesn't take much to put the temp over 40°C, which is the danger point of causing battery damage and loss of capacity.

If the phone is sitting idle, QC2.0 charging seems ok. Even relatively simple tasks like web browsing we're pushing temps close to that 40°C mark. Once temps get around 37°C, I noticed charge throttling that dropped to 200-250mA. Because of this, charge times are on par with a standard charger with high temps. So if you get a QC2.0 charger, my suggestion is to keep the phone cool, don't use a case that could insulate the phone, and try not to use it while charging.

With prices becoming comparable to standard chargers, I'm not saying QC2.0 is a waste of money. What I am saying is if you do get one, to know its limitations and how to make it charge effectively. And for what it's worth, I won't be reporting any battery life/capacity results over time. I have a warranty roulette replacement M8 now that I think had an abused battery from the former owner. Out of the box, it already had less life than my original one and I think it's been getting worse. So any results on battery life from using QC2.0 from me would be flawed.

 

[mfreeland]

Re: M8 Quick Charge 2.0

it may be compatible with your phone but if it's not bought directly from the manufacturer it will have a negative effect on your battery life and your phone will start to loose juice much quicker.
Completely wrong and misleading. Pay attention to the specs of what your OEM charger was, (1.5amp, etc) and you'll be fine without adverse affect on your battery. Quick charge 2.0 is great....

 

[ItsMikeE]

Re: M8 Quick Charge 2.0

Generally the advice is to not leave your phone on the charger once it is fully charged.
QC 2.0 charges quickly at the beginning, and much more slowly for the last few percent.
Does anyone know if leaving a phone plugged into a QC2 charger after fully charged is less harmful than a standard charger?

 

[Mooncatt]

It'll be the same. The reason it's not good to leave a phone plugged in once full is because lipo batteries don't like being in a high charge state and it speeds up the chemical reactions that cause it to loose capacity. It doesn't matter if it's plugged in, what kind of charger, or even fully charging it and then shutting the phone off and letting it sit on a shelf for months (which is why they are shipped with a partial charge).

 

[JustFlames]

****

 

[JustFlames]

It'll be the same. The reason it's not good to leave a phone plugged in once full is because lipo batteries don't like being in a high charge state and it speeds up the chemical reactions that cause it to loose capacity. It doesn't matter if it's plugged in, what kind of charger, or even fully charging it and then shutting the phone off and letting it sit on a shelf for months (which is why they are shipped with a partial charge).

Can you help me out? I have the same phone and charger as you (aukey), I was wondering whether you are using the HTC OEM Cable or an aftermarket cable if so which one? I bought the charger and it looks like quick charging isn't work it took around 2 hours for a full charge.

 

[badelhas]

Can you help me out? I have the same phone and charger as you (aukey), I was wondering whether you are using the HTC OEM Cable or an aftermarket cable if so which one? I bought the charger and it looks like quick charging isn't work it took around 2 hours for a full charge.

There's strange. I also have the aukey quickcharge 2.0 wall and car charger and I use the HTC cable and some aukey cables I bought separately and the charging is very fast

 

[JustFlames]

I bought the wall charger off Amazon and it came with an Aukey Cable, there's something wrong with my htc one cable think it needs re soldering because it keeps disconnecting depending on angle and charges slow. But I would have expected the supplied cable to charge it sufficiently.

 

[Mooncatt]

I'm currently using these cables.

http://www.amazon.com/gp/aw/d/B00T3...ag=hawk-future-20&ascsubtag=UUacUvbUpU4741191

They seem nice, but the caveat is I don't like micro USB charging in general. I've never had good luck with cables (OEM, cheapy, or premium didn't seem to matter), but these seem to still be doing ok after a month's use. I used to think it didn't really matter what cable you got and that they would all perform about the same when working correctly. That changed when I bought a couple from Dollar Tree. They must have used some seriously small power wires because they wouldn't do much more than trickle charge on both standard and QC2.0 chargers. Those are the only ones I've tried where the cable couldn't let enough power through by design.

And about a month ago my USB port went bad for the second time on this phone. The first one replaced with warranty roulette, the second going bad in less time but out of warranty at that point. So I'm starting to wonder if it's a bad port design as well causing some of these issues that are typically associated with bad cables. I'm on a backup phone I had now and going to cut my losses with the M8.

 

[attcbf]

I received my M8 in late December 2014. The charger on it died and I just received this one:

The one that broke is this one:
I think T-Mobile ripped me off by sending an older 1.5A model instead of the 2.0. Am I correct?
Thanks.

 

[Mooncatt]

I received my M8 in late December 2014. The charger on it died and I just received this one:
View attachment 203546
The one that broke is this one:View attachment 203547
I think T-Mobile ripped me off by sending an older 1.5A model instead of the 2.0. Am I correct?
Thanks.

As far as I know, the M8 only ever came out with a standard 1.5A charger, not a QC2.0. The CQ2.0 was an optional purchase.

 

[badelhas]

As far as I know, the M8 only ever came out with a standard 1.5A charger, not a QC2.0. The CQ2.0 was an optional purchase.

It was not a "standard" 1.5amp charger but a quick-charge 1.0 one. But your correct saying that it wasn't 2.0.

 

[Mooncatt]

It was not a "standard" 1.5amp charger but a quick-charge 1.0 one. But your correct saying that it wasn't 2.0.

True enough, but QC1.0 is more or less the current standard.

 

[badelhas]

Not true. Qualcomm says it's 40% faster than the ones without quick-charge 1.0, you can check it on their site

 

[mfreeland]

I received my M8 in late December 2014. The charger on it died and I just received this one:
View attachment 203546
The one that broke is this one:View attachment 203547
I think T-Mobile ripped me off by sending an older 1.5A model instead of the 2.0. Am I correct?
Thanks.

Read the fine print on the charger. It will say what the amperage is. It's probably a 1.5A. If it doesn't say Qualcomm 2.0 on it, it isn't. The current standard is QC 2.0 The new phones will work with QC 3.0 when it comes out this year. QC is a LOT faster than the old stock 1.5A charger.....

 

[DJ Grand Theft Audio]

Can these rapid chargers that charge so quickly effect the longevity of the battery as there's much more amps going through.

 

[mfreeland]

Can these rapid chargers that charge so quickly effect the longevity of the battery as there's much more amps going through.

I've been using these QC 2.0 chargers on my M8 both in the car and at home, and haven't seen any difference in my battery life.....so far. Doubt I will see much before I upgrade in May.

 

[Mooncatt]

The faster charge rate in and of itself isn't much to worry about because it's not even charging at 1C. For standard Lipos, this is fine. The bigger issue here is heat. A higher charge rate generates more heat, so you'll want to keep your phone in a cool place if possible to limit heat related stress.

 

[mostafa samy 007]

can i use fast charging adapter in htc one m8 without problem in affecting battery life time after time of using it