The slowdown is related to battery health. For some devices, it starts happening after a year; for others it takes longer.
Replacing the battery restores normal performance. You don‘t need to go to an authorised repair shop.
Replacing the battery restores normal performance. You don‘t need to go to an authorised repair shop.
"In order to maintain the battery life you are used to, we had to introduce limits on your iPhone. This is because by time batteries unfortunately lose their capacity. Your phone will be just as new if you take it to our stores and get the battery replaced"
would be communicated, it would be nice. In my opinion. btw batteries usually also have a year of warranty, so there really should be a way to check it's performance.
I rather have shorter battery life with same performance so it's more noticeable that I need to replace the battery.
I would like to be informed of this "Your battery is starting to fail". Same way as SMART monitoring in disk drives tells you that it degraded too much and will break soon.
I don’t think this is about us having a better experience though. It looks like a strategy to sell new devices by making the old ones obsolete.
I hope we see a class action.
> I rather have shorter battery life with same performance so it's more noticeable that I need to replace the battery.
I agree, but something is odd about this whole situation.
I have an iPhone 6, iPhone 5, iPhone 4, a 2nd generation iPod Touch, and several Android phones.
The iPhone 6 is the first one I've seen randomly turn itself off when the battery level was below 30%, all of the others would run normally even when the battery condition was poor. I could continue using them normally while the battery indicator ticked down to 1%.
While my iPhone 6 no longer randomly turns itself off, it frequently doesn't respond for 15+ seconds when typing a letter on the keyboard or tapping a text field, it's essentially just as unusable as if it had turned itself off.
What makes me suspicious is that I have a 2nd iPhone 6 here at the moment with a similarly aged battery in fairly poor condition. It doesn't randomly turn off, and the performance difference is immediately noticeable, it's actually usable. The only real difference I can identify is that it is still running an older version of iOS.
Because iPhones don't really have user serviceable batteries, I wonder if an after market battery charging case would provide more speed with a new battery pack.
(That's from reading around on the internets. I only have direct knowledge of my own situation, where plugging my phone in did not help but replacing the battery did.)
My guess is that most of the billion iPhone users have no idea, and they really don't want to invest much time into figuring it out.
ETA: Point being, this doesn't appear to actually be limited to batteries that have seriously degraded.
If they are related (and perhaps they are, I wasn't thinking about the recall when I wrote my comment), do you think it's unreasonable for engineers at Apple to try to prevent unexpected shutdowns? I would think it would be unreasonable not to, once they saw the impact it was having on user experience. And that's besides improving the battery. The amount of engineering that goes on with respect to power and performance management is incredible, and attacking these types of problems from multiple angles is expected, particularly when you're looking to eek out even more performance in something that's already been through years of optimization iterations.
Apple knew the peak draw of their SoC (they designed it). And they knew the capabilities of the battery. Under sizing the battery is exactly what I would call a design flaw.
For extremely short duration peaks up to a few microseconds capacitors are a great workaround. They are necessary for pretty much every digital integrated circuit. A billion transistors all switching at the same time on the rising edge of a clock cycle has a massive instantaneous current draw.
Yes. And it does look like a case of undersized batteries. If I had to guess, I'd say it was because of too strict product design specifications meeting a lower than expected quality in manufacturing.
CPU power peaks usually last for a (large) fraction of a millisecond or more, because that's how the OS scheduler works. Added to that, peaks may not happen for entire minutes or hours. Both of those work against the usefulness of large capacitor banks.