Does the S8/S8+ Use Qualcomm's Quick Charge 3.0 or 4.0

[kckrol89]

The ability to use Quick Charge technology is software related, the HTC One A9 was able to use it after a software update (HTC One A9 Quick Charge 3.0 support finally lands | Pocketnow).

I assume Samsung just isn't going to update their software to allow this feature which sucks but I'm sure they have their reasons.

Please can someone answer this question!!? I called Samsung and there people don't know ****. It's the most important damn feature!

Any updates?

 

[ABarret]

The Galaxy S8 and S8+ will most likely have the same quick charging features as the S7.
This video: https://www.youtube.com/watch?v=EhnMuV0V6JU shows that the S8 adapter has the same output as the S7.

 

[josenrique95]

Sorry I don't know if this question was already asked...

The Samsung Galaxy S8/S8+ both use Qualcomm's 835 Snapdragon Processor which is their first mobile processor that can use their new Quick Charge 4.0 technology (https://www.qualcomm.com/news/snapd...five-minutes-charging-five-hours-battery-life). I haven't seen any information about if these phones will actually use this technology?

If the S8/S8+ don't use the 4.0 Quick Charge technology do they at least use the 3.0 Quick Charge technology this time because I know the S7, S7 Edge and Note 7 don't use it.

Also Qulacomm doesn't show the S8/S8+ as being compatible with their 3.0 Quick Charge technology (https://www.qualcomm.com/products/features/quick-charge) but I'm wondering if that's because they aren't official released yet?

https://www.cnet.com/products/samsung-galaxy-s8-preview/

Here, gentlemen. Quickcharge 2.0.

 

[D13H4RD2L1V3]

https://www.cnet.com/products/samsung-galaxy-s8-preview/

Here, gentlemen. Quickcharge 2.0.

That's a serious disappointment if that's the case.....

 

[bhatech]

That's a serious disappointment if that's the case.....

Agreed, even budget phones are having QC 3

 

[D13H4RD2L1V3]

Agreed, even budget phones are having QC 3

It's not really the case of QC3 or QC2.

It's how Samsung has not bothered to update their charging standard at all since 2014, when it was introduced on the Galaxy Note 4.

USB-C specifications require that quick charging should be accomplished by non-proprietary means. Basically, to maintain specs, USB Power Delivery needs to be used as the base. Qualcomm Quick Charge 4.0 uses Power Delivery as its base, making it compatible with USB-C specs. But QC3 and QC2 are not. They weren't even designed for USB-C in the first place.

Samsung basically hacked on a Quick Charge 2.0-based standard for use with a new port type, which has a number of implications if that turns out to be the case.

 

[ClintRo]

I really think they are just limiting it software based because of the battery mishaps on the Note. Maybe they will continue to test and push it out as an update at a later date.

 

[ThrottleJohnny]

I really think they are just limiting it software based because of the battery mishaps on the Note. Maybe they will continue to test and push it out as an update at a later date.

I agree with you.

 

[afh3]

I really think they are just limiting it software based because of the battery mishaps on the Note. Maybe they will continue to test and push it out as an update at a later date.

So they stuck with QC 2, instead of QC 4, when one of the features of QC 4 is that it reduces battery charging temperatures by 5 degrees C compared to QC 2/3?

Interesting strategy.

 

[ClintRo]

None of us really know what or why. I didn't know QC 4 reduced temp, still just feels like they are playing it safe.

What they need is for other manufactures to get the 835 chip and offer QC4. Competition is key, manufacturers have to be pushed otherwise innovation dies.

 

[afh3]

None of us really know what or why. I didn't know QC 4 reduced temp, still just feels like they are playing it safe.

What they need is for other manufactures to get the 835 chip and offer QC4. Competition is key, manufacturers have to be pushed otherwise innovation dies.

Maybe it's just me, but a hotter battery does not seem like playing it safe(r).

Besides the cooler battery charging temperatures, here is a list of the other QC 4 features we won't be getting on our 2017 SD835-equipped flagship phone should it use QC 2...

https://www.qualcomm.com/news/snapd...five-minutes-charging-five-hours-battery-life

 

[ClintRo]

I could come with the flip of a switch... or a build prop edit

 

[ClintRo]

Just because Qualcomm says it is cooler doesn't mean that is the case. Sammy said the New Note 7s wouldn't catch fire... but we see how that turned out.

For the most part manufactures have an idea of how QC 2.0 will work and moving to a new tech always has risks. Sammy escaped the Note 7 debacle relatively unscathed. Imagine the damage if the S8 series had the same issue.

QC 2.0 = lots of data points.

QC 4.0 = some risk.

 

[afh3]

Just because Qualcomm says it is cooler doesn't mean that is the case. Sammy said the New Note 7s wouldn't catch fire... but we see how that turned out.

For the most part manufactures have an idea of how QC 2.0 will work and moving to a new tech always has risks. Sammy escaped the Note 7 debacle relatively unscathed. Imagine the damage if the S8 series had the same issue.

QC 2.0 = lots of data points.

QC 4.0 = some risk.

I was unaware that the Note 7 battery failures had been ascribed to charging issues. Since that Note 7 used QC 2, perhaps a roll back to QC 1, or standard-only charging is in order then.

Less risk that way.

 

[D13H4RD2L1V3]

None of us really know what or why. I didn't know QC 4 reduced temp, still just feels like they are playing it safe.

What they need is for other manufactures to get the 835 chip and offer QC4. Competition is key, manufacturers have to be pushed otherwise innovation dies.

That's not even close to playing it safe, unfortunately.

Yes, it has been tried and tested, but that was on microUSB. On USB-C, it's a totally different ball-game.

USB-C is designed for use other than just power and storage. It's a multipurpose standard, designed for all types of usage and can handle varying degrees of power, whether it's small or large. USB Power Deliver should be used as the base in order to guarantee compatibility with USB-C specs as it was designed by the USB-IF and is made to work specifically for USB-C. Because other USB-C power supplies need to follow that spec for compliance, it also makes it safer should you plug in a charger/cable that is not the one supplied with the device.

Qualcomm Quick Charge 3.0 and especially 2.0 were not designed for USB-C in the first place. While Qualcomm states that it is compatible with USB-C, it does so in a way that violates Section 4.8.2, in which proprietary forms of modifying Vbus voltage cannot be used (basically, don't use proprietary forms of fast charging).

Samsung's QC 2.0-based AFC may be tried and tested, but when it comes to USB-C, I think that's actually a problem.

 

[ClintRo]

Well then if they do actually leave it out, it makes no sense. They have to have a reason it is not supported, the chip and the standard support it and Sammy most like wouldn't do it just because. So either the reports that it is only QC 2.0 are wrong or there has to be a reason.

Maybe they want everyone to use wireless, but I doubt that as that method in my experience creates more heat.

 

[D13H4RD2L1V3]

Well then if they do actually leave it out, it makes no sense. They have to have a reason it is not supported, the chip and the standard support it and Sammy most like wouldn't do it just because. So either the reports that it is only QC 2.0 are wrong or there has to be a reason.

Maybe they want everyone to use wireless, but I doubt that as that method in my experience creates more heat.

There's no good reason in my mind on why Samsung chose not to utilize Quick Charge 4.0 and subsequently updating AFC to support USB-C.

If you're going to use USB-C, at least make sure it's compatible.

 

[ClintRo]

I guess we don't have all the facts then.

That is all I am saying, there has to be some reason, they wouldn't just give someone a competitive advantage for the fun of it.

 

[ClintRo]

Or maybe Qualcomm has not released it commercially yet.

Source: https://www.qualcomm.com/news/snapd...five-minutes-charging-five-hours-battery-life

 

[Soggly]

Maybe the phone does support it, but they just didn't include a 4.0 charger to be on the safe side? I still can't find a 4.0 charger so maybe when they're available you'll be able to use one?