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iPhone 15 Might Support Charging Speeds Up to 35W

jz0309 said:
I am currently charging with MagSafe, my 13PM on average is above 50% at bedtime, I'd expect similar from a 15PM, but rather than charging at 35W I'd consider going back to the old 5W chargers --> lower charging speed, less heat (batteries don't like heat).
At the same token I do not care about battery health, for one "babying" your battery is far too time consuming/complex and takes the joy out of battery operated electronic devices (for me) and secondly I do get AC+ for my iPhones (I drop them occasionally and thus far have been lucky to not destroy one, but I'm not getting younger ...)
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You are aware that wireless charging (Magsafe) produces generally way more heat (it is inefficient) compared to charging via cable, right? You don't like 35W charging via cable but at the same time you are using induction charging via coils which generates heat not only from the battery but from the coils itself...
 
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When Macrumors members fast charge their phone

mobile-fire.gif
 
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33man said:
Hmm all these debates about fast charging and 20 or 30 W being bad for the battery…. I’m laughing.

The phone CAN regulate the curve and thus power depending of the battery level or temperature.

So basically the 30w charge is only when battery is very low and on my 13 pro max can last about 15 mins only, then the power reduce due to temperature and battery level, so it reduces to 15 then 8W and once reached 80% sleep until 2 hours before wake up and there charge at 5 or 2 W.

So 30W charger doesn’t mean 30W all along the charge time…

What I’m curious is how the concurrent are managing 100W charge for more than 1-2 mins without an active battery cooling
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The charging curve isn't optimized for maximum battery health. Apple optimized the curve so battery capacity doesn't fall below 80% within two years (AppleCare+). But that doesn't mean it's good.

The steepest part of the charging curve is the first 30-40 minutes. You really don't want 27W being pumped for that long if you care about health.
 
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hacky said:
You are aware that wireless charging (Magsafe) produces generally way more heat (it is inefficient) compared to charging via cable, right? You don't like 35W charging via cable but at the same time you are using induction charging via coils which generates heat not only from the battery but from the coils itself...
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You are aware that their entire 2nd paragraph was basically "I don't care"?
 
hacky said:
I hope EU will ban devices with charging speed limitations enforced by the MFi if Apple goes this way.
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The EU legislation requires USB C and USB PD support, which may not be hindered by other standards etc.

hacky said:
Edit: reaction to your edited message: there's not attack vector for charging. Charging cable is dumb and should not use data pins.
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USB PD isn’t dumb, actually, and does use data pins to negotiate voltage and current, as well as talk to the cable in case of higher charging rates. However, these are separate data pins, not the regular USB ones.

fatTribble said:
with USB-C can you even still use the old 5w charger?
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Maybe, with a USB C to A cable.

compwiz1202 said:
I was actually saying in the beginning they would do that to be spiteful.
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Charging at 1W wouldn’t even be compatible with the basic USB standard.
 
Lots of talk about the batteries, how about the "I bought this cable 5 for $5 on Temu" cables? Any risk to using cheap cables with cheap insulation/thin conductors?
 
hacky said:
I hope EU will ban devices with charging speed limitations enforced by the MFi if Apple goes this way.

I doubt my current MacBook USB-C cable and charger is equipped with MFi chip and it seems absurd not being able to fully use my MacBook original charger and cable (which works just fine with my iPad Pro) for the new iPhone.
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MFI is not a quality certification (i.e., amperage, impedance, bandwidth, whatevz) - its proof that you paid Apple, at every stage, to allow you to stay in their warm, fruity embrace. So, hypothetically, a laptop (or a suitably sophisticated charge brick) could send the expected signal to the phone, "Timmeh!", which should enable draining the sun to charge up for a day.

But why all the resistance to buying all new cables, plus spares. I'm getting a giant titanium steel iPhone, for Pete's sake that will cost more than tires for my Porsche. I already throw out cables when they get dirty, or the bright tidy white coating gets shiny from fingers (eewe!). And no gas station cables, or drug store cables, because those are Android wires, for their unworthy green message bubbles, yuck. And the old cables aren't a problem; trash gets picked up twice a week at my place.
 
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hacky said:
You are aware that wireless charging (Magsafe) produces generally way more heat (it is inefficient) compared to charging via cable, right? You don't like 35W charging via cable but at the same time you are using induction charging via coils which generates heat not only from the battery but from the coils itself...
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sure, wireless is not as efficient as wired, but MagSafe is probably somewhere around 90% ... and wired is 100% either, more like 96,96% ... whatever, 35W will produce more heat than wireless MagSafe ...
Thing is, all these manufacturers have the actual data (losses, heat etc etc) but its kept under the wraps, convenience (of wireless charging) outweighs the "waste" ...
 
JPack said:
The higher the wattage, the higher level of heat and battery degradation.

iPhone 12 Pro - 24W
iPhone 13 Pro - 27W
iPhone 14 Pro - 29W

It’s no coincidence some people with iPhone 14 Pro are reporting poor battery health after a year with 30W chargers.
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Oh buddy. I’m reporting bad battery health after used the 5w charger for a year on my 14 pro max…
 
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ant the ninja said:
I have no issue with the speed my 14P charges on the standard apple 30w charger, I think it’s extremely fast actually.

However my battery health is at 88% already and I almost exclusively wirelessly charge. Definitely ready to upgrade to the 15p based off how bad this battery has been.
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That’s really odd. My 14 Pro (from launch day) is still at 100%. It sits on a wireless charger every night, which I think is only 5w. Other than that it only charges with my car when doing CarPlay, which I think is also only around 5w.
 
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Dumb question. What charging wattage does the USB C /TB ports on a M1 Mac provide?
 
rjjacobson said:
My phones have been well with wireless MagSafe charging puck and optimized charging on for overnight finishing in morning before I get phone. Still at 97 percent health with this method
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I thought I would like this, but I had to disable this, my schedule means that 3 days a week I wake up earlier than than the other 4, and my phone would only be charged to like 70 % on those days. AI sucked at figure it out, it was always the same 3 days and always the same time, and I walkways had an alarm set. Should have been pretty easy to figure out. Had to disable it.
 
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The only Mag safe charging I use, lighting or USB-C is problematic. Broken ports are not things I wish on anyone.
 
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