iPhone 8 has wireless charging problems

[DrMacintosh]

4 hours ago, KOMTechAndGaming said:

ive had more issues charging my note 8 wirelessly than now my 8 plus.......................

That’s amazing ?

[DrMacintosh]

4 hours ago, RadiatingLight said:

Does their upcoming airpower mat use Qi or something else?

It’s their own technology. 

[DrMacintosh]

4 hours ago, ARikozuM said:

Also, that's one strong vibrator if it moves the phone a good half centimeter. 

Have you felt the TapticEngine in the latest iPhones? Look inside an iPhone 8, the Taptic Engine takes up so fricking much space!

 

My 6s Plus has the first iteration of the TapticEngine and it’s so powerful I can hear it go through my desk and thorough the floor when I’m downstairs. 

[RadiatingLight]

21 minutes ago, DrMacintosh said:

TapticEngine and it’s so powerful I can hear it go through my desk and thorough the floor when I’m downstairs

what the fuck hahaahahha

[MorganO]

4 hours ago, RadiatingLight said:

Does their upcoming airpower mat use Qi or something else?

afaik the iphone supports QI

[MorganO]

47 minutes ago, DrMacintosh said:

That’s amazing ?

in fact it is , and i use my samsung wireless fast charger

[79wjd]

33 minutes ago, KOMTechAndGaming said:

afaik the iphone supports QI

The iPhone supports QI, but Apple plans to release their own version -- Airpower Mat (2018~). It was marketed as enabling charging of multiple devices simultaneously in the Keynote (which isn't possible currently with QI).

[Hiitchy]

6 hours ago, NumLock21 said:

Wireless charging does not exist!

*puts on tin foil hat* Who's telling the truth?!

[NumLock21]

Just now, Hiitchy said:

*puts on tin foil hat* Who's telling the truth?!

*also puts on tin foil hat*

I am! Wireless charging is fake!

[Paradine Sage]

7 minutes ago, ImHyperstyle said:

personally i don't see the point in wireless charging.... is it so hard to plug a cable in  

It's probably two to four years away from being really relevant. By then numerous technologies that are just leaving the lab now will be in flagship products and it will be perfectly possible to make a phone that is, essentially, nothing more than a solid, sealed, crystal block.

 

Removing the need for wired charging is one step on the road to that end. 

[Curufinwe_wins]

I've been only using wireless charging for as long as I've had my s7. I know it varies case to case, but I have never had an issue with mine being picky. In fact I can move the phone quite a bit along the pad without any loss of charging capability.

 

I tend to get home quite late and don't feel like reaching to find a cord. I just set it on the pad and boom done.

[Nizkus]

2 hours ago, djdwosk97 said:

The iPhone supports QI, but Apple plans to release their own version -- Airpower Mat (2018~). It was marketed as enabling charging of multiple devices simultaneously in the Keynote (which isn't possible currently with QI).

It might just have more than one coil inside the same package 

[VagabondWraith]

Still waiting for the day I can charge my iPhone wirelessly throughout the entire house without having to place it on a mat. To me, that’s the definition of wireless.

[Drak3]

41 minutes ago, VagabondWraith said:

Still waiting for the day I can charge my iPhone wirelessly throughout the entire house without having to place it on a mat. To me, that’s the definition of wireless.

To me, the definition of wireless is "without wires," which'll never happen.

[Sniperfox47]

9 hours ago, Jrock said:

Considering everything else apple is proprietary they COULD have developed something that works. And better than any standard in other phones...

Not really. Inductive and resonant charging are inherently inefficient by their very nature. Unless they discovered some magical new physics principal that allows energy transfer they're not going to have a much better standard, and that's unlikely since they're not a research institute.

 

8 hours ago, VegetableStu said:

wasn't that the reason why they were hesitant to adopt Qi in the early years? o_o like why now if it's still as shit?

 

On a separate note, charging via magnetic induction is inherently highly inefficient isn't it

Probably because of the flack they've been getting for touting a "wireless future" while charging with a wire.

 

And yes. Yes it is.

 

4 hours ago, DrMacintosh said:

It’s their own technology. 

Where do you get this? Every source I've seen reporting on the Air Power Mat reports it as using Resonant Qi, and honestly it would make more sense for them to use Airfuel (Rezence+Powermat) before developing their own standard from the ground up, since designing a standard for wireless charging is *incredibly* complicated. Especially since Qi allows them to use a single sink device (coil in the phone) compatible with both Resonant and Inductive sources (chargers).

 

3 hours ago, djdwosk97 said:

The iPhone supports QI, but Apple plans to release their own version -- Airpower Mat (2018~). It was marketed as enabling charging of multiple devices simultaneously in the Keynote (which isn't possible currently with QI).

It is possible with resonant Qi chargers, just not with inductive Qi chargers.

 

http://www.powersquare.com/tango-wireless-charger/

 

There's an example of a resonant Qi charger capable of charging two phones with loose coupling, meaning you can have the devices anywhere on the mat and they'll charge.

 

3 hours ago, gabrielcarvfer said:

They should have used Rezence/WiTricity, not Qi. =/

Airfuel (The current Alliance championing Powermat for inductive and Rezence for resonant) isn't any higher efficiency than Qi, and is *much* more expensive for the control chips. Apple's normally pretty skimpy on their BOM and it wouldn't really improve anything.

[bob345]

9 hours ago, suicidalfranco said:

only because we haven't seen Apple's solution yet. Bet it's going to be closer to 100% efficiency than this Qi crap

I hope your joking. 100% efficiency or even close to that is impossible with em based wireless charging. The 60-70% efficiency is already close to what is theoretically feasible with a perfect system. Any time you couple energy from one medium to another there will always be significant loss.

[DrMacintosh]

Just now, bob345 said:

100% efficiency or even close to that is impossible with em based wireless charging.

It’s  not possible to be 100% efficient with anything dealing with electricity. 

[AnonymousGuy]

9 minutes ago, bob345 said:

I hope your joking. 100% efficiency or even close to that is impossible with em based wireless charging. The 60-70% efficiency is already close to what is theoretically feasible with a perfect system. Any time you couple energy from one medium to another there will always be significant loss.

Well I'm sure you *could* get 100% efficiency of you somehow managed to couple the coils with zero gap between them.  Oh wait that's a fucking wire!

[iamdarkyoshi]

I'm amazed honestly that this is an issue, since I hardmodded my zenfone to charge wirelessly for about 10$ including the charging pad, and it works perfectly fine.

 

Has anyone figured out if its the pad or the phone causing the issue?

[Sniperfox47]

4 minutes ago, AnonymousGuy said:

Well I'm sure you *could* get 100% efficiency of you somehow managed to couple the coils with zero gap between them.  Oh wait that's a fucking wire!

Wires aren't 100% efficient, they have resistance and generate heat.

1 minute ago, iamdarkyoshi said:

I'm amazed honestly that this is an issue, since I hardmodded my zenfone to charge wirelessly for about 10$ including the charging pad, and it works perfectly fine.

 

Has anyone figured out if its the pad or the phone causing the issue?

It's the phone's coil, since it happens across chargers, including with chargers that work fine with other Qi devices.

 

Honestly though it might not even be a "problem" and may be a way to drive people towards their air power mat since resonant solutions wouldn't have this problem (even if their efficiency is even more hot trash).

[79wjd]

1 hour ago, Sniperfox47 said:

It is possible with resonant Qi chargers, just not with inductive Qi chargers.

 

http://www.powersquare.com/tango-wireless-charger/

 

There's an example of a resonant Qi charger capable of charging two phones with loose coupling, meaning you can have the devices anywhere on the mat and they'll charge.

Interesting....Do resonant Qi chargers require anything more on the device end (I would assume not since my guess -- note I didn't look into it yet -- is that a resonant pad is effectively a giant, inefficient, coil)?

 

[vanished]

But, but, apple always waits a few years to make sure a technology is mature and works perfectly before implementing it, that's why it took several years for them to finally add it! /s

Why do people make this excuse...

they're not even consistent either, the same people who like to say that will turn around and talk about how apple leads the market and is first with things if you mention a different tech

[79wjd]

8 minutes ago, Ryan_Vickers said:

they're not even consistent either, the same people who like to say that will turn around and talk about apple leads the market and is fist with things if you mention a different tech

The two aren't necessarily mutually exclusive. You can be the first to do something and do it well at the same time. And of course, the opposite is also true -- you can be late to the party and still not have done a better job (although, I would argue that Apple's solution is the Airpower mat and not just the iPhone+standard Qi charger, which in theory should solve most of the wireless charging problems -- as would resonant Qi becoming more mainstream).

[vanished]

1 minute ago, djdwosk97 said:

The two aren't necessarily mutually exclusive. You can be the first to do something and do it well at the same time. 

That's not what I mean, I'm talking about the blind loyalty that will justify everything they do, talking about how they're always first to market one second, and then when you point out a counter example (wireless charging for example) the tune changes to "oh, they like to wait so when they do finally do it, it's perfect rather than rushing in with a janky solution like some companies".

 

Those things are mutually exclusive.  Come on people, let's not think in absolutes.  Yes, sometimes they're first, bu sometimes they're dreadfully behind.  And sometimes they do it right, but sometimes, even when they wait, there's issues.

[Sniperfox47]

1 hour ago, djdwosk97 said:

Interesting....Do resonant Qi chargers require anything more on the device end (I would assume not since my guess -- note I didn't look into it yet -- is that a resonant pad is effectively a giant, inefficient, coil)?

 

All Qi sinks support both modes.

 

Qi sources can support either mode or both. If they support both, they switch as the distance between the coils increases.

 

The coil size between a resonant and inductive Qi system is the same. It's a matter of how they tune the coil frequency, among other processing concerns. I'm no expert on the technical physics of either system, but that's the basic explanation.

 

And yes, inductive is more energy efficient than resonant in perfect situations(~80-90%), but it's also far more sensitive to distance and alignment issues. If the coils aren't decently aligned, or are more than a few millimeters apart, resonant will wind up significantly more efficient (~60-70% vs like 20-30% for a few cm of misalignment.).

 

And just to clarify things, all of my efficiencies are talking specifically about the 5v version. The 120/240v mains connected Qi and Rezence wireless chargers used for Electric vehicles are *far* more efficient, but they're also lower frequency, allowing for a larger airgap. [Edit: Afaict the home appliance version of Qi that the Wireless Power Consortium is planning, is using the same system as their vehicle chargers]