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Apple Says It Slows Older iPhones to Save Their Battery Life

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Re: Apple Says It Slows Older iPhones to Save Their Battery Life

#71
post #10

Earlier quoted context omitted.

It does say in iOS that your battery needs to be replaced [1]. Everyone keeps saying they never told anyone about this but they basically announced it to the press with a statement (as well as the notice in iOS) when iOS 10.2.1 was released [2]. [1] https://support.apple.com/en-us/HT207453 [2] https://techcrunch.com/2017/02/23/apple-says-ios-10-2-1-has-...

My wife's iPhone has been running slow ever since she upgraded to iOS 11. Literally the day she upgraded, she's regretted. I'll run the speed test later to confirm. But there is absolutely NO warning in iOS that I can see that says it's been put into low-speed mode.

That's because there is no low-speed mode. It changes based on a variety of conditions including how degraded the battery is (the OS tells you when it needs to be serviced once it's near the end of its life, 500 cycles), cold or hot temperatures, and the remaining battery life (low power mode decreases performance).

Re: Apple Says It Slows Older iPhones to Save Their Battery Life

#72
post #29
post #3

It's not only to make them run longer - they're reducing the peak demand on the batteries to avoid spontaneous shutdown when the aged battery can't handle the load. This seems like a good idea, and it appears to be well executed (ie it's not apparently based just on age or milage like a crappy car maintenance reminder), but Apple should probably have something in iOS that tells people their phone is running slow beca…

This comment deserves more attention. And, in fact, means the headline is wrong. Apple is not slowing down devices to extend battery life. Apple is slowing down devices to prevent the thing from crapping out entirely ("unexpectedly shutting down"). Arguably, this does more to prevent obsolescence than plan it. Agreed with @djrogers suggestion to alert the user to the situation. It should not be a user choice. "Last y…

If that's true, why was Apple being so cagey about it for so long? Why didn't they advertise it as a feature?

Re: Apple Says It Slows Older iPhones to Save Their Battery Life

#73

Had the battery in my iPhone SE replaced about an hour ago to test this out Geekbench 4 benchmark before https://twitter.com/invisiblea/status/943439761066397696 And after https://twitter.com/invisiblea/status/943891561661812736

What app or site are you using to test that?

It looks like Geekbench 4.

Re: Apple Says It Slows Older iPhones to Save Their Battery Life

#74

Had the battery in my iPhone SE replaced about an hour ago to test this out Geekbench 4 benchmark before https://twitter.com/invisiblea/status/943439761066397696 And after https://twitter.com/invisiblea/status/943891561661812736

What app or site are you using to test that?

Geekbench https://itunes.apple.com/ca/app/geekbench-4/id1130770356

Re: Apple Says It Slows Older iPhones to Save Their Battery Life

#75
post #16

Earlier quoted context omitted.

The whole problem is that the batteries can't deliver that performance. They can throttle the chip to what the battery can deliver or it will crash. Maybe Apple's more conservative on the throttling, and some amount of performance could still be achieved without a crash, but there's zero chance Apple's putting a "make my phone unstable" switch in Settings.

That doesn't pass the sniff test. The available voltage from a lithium ion battery will decrease as it is discharged. When your phone turns off, that does not mean there is no more energy in the battery. It means there is no longer enough voltage to power the phone. Over the course of many discharge cycles, the battery will lose capacity, and the point when the voltage is no longer sufficient to power the phone will…

Wrong. The peak demand from the phone can exceed the available voltage even if you're at 30%, causing an immediate shutdown. That's what we saw a year ago. Now they no longer shut down unexpectedly, but the performance of the phone sucks, even with a battery that holds 87% of its original capacity.

Re: Apple Says It Slows Older iPhones to Save Their Battery Life

#76
post #3

It's not only to make them run longer - they're reducing the peak demand on the batteries to avoid spontaneous shutdown when the aged battery can't handle the load. This seems like a good idea, and it appears to be well executed (ie it's not apparently based just on age or milage like a crappy car maintenance reminder), but Apple should probably have something in iOS that tells people their phone is running slow beca…

> It's not only to make them run longer - they're reducing the peak demand on the batteries to avoid spontaneous shutdown when the aged battery can't handle the load.

Yes. I used to have spontaneous shutdowns on my iPhone 6 in cold weather when the fuel gauge indicated a number like 20% and it was this sort of problem that was meant to be fixed: the CPU using too much current, causing the battery voltage to drop enough to trigger the low-voltage/brownout detector, causing the phone to die. The battery would last long enough (from last full charge to needing to recharge) -- it wasn't inadequate in the energy department -- it just couldn't deliver enough power in cold conditions.

Throttling the CPU in those cases (when the aged battery can't deliver enough current) is sensical and extends the life of the phone -- the only serious issue is that the user might think that there is a problem with the CPU or the software (and replace the whole phone) when the problem can be adequately fixed with a new battery (far less expensive than a new phone).

The feature is good but Apple's software should be far more proactive in notifying users that this is happening, if only because users jump to a conclusion of "my old phone can't handle this new iOS update, damn Apple making me buy a new phone" rather than "my battery is too old to reliably deliver whatever current the SOC wants".

Re: Apple Says It Slows Older iPhones to Save Their Battery Life

#77
post #62
post #45

Earlier quoted context omitted.

It is replaceable (by Apple, authorized and unauthorized third parties). User replaceable batteries could increase waste by being less reliable overall. I know every TV remote I've owned with a battery door eventually ends up with a rubber band around it, and I think that's pretty much a universal experience. Also we've had this debate for years already when Apple went to unibody Macbooks. The reliability and battery…

It is not easily replaceable as with any other phone. The issue is not creating waste, but wasting one's money on middle-men for replacing one's phone batteries. >I know every TV remote I've owned with a battery door eventually ends up with a rubber band around it, and I think that's pretty much a universal experience. You're relating a supposedly personal story to make your spin claims more relatable. Maybe you're l…

> The issue is not creating waste, but wasting one's money on middle-men for replacing one's phone batteries.

Well I could say I'm spending that money on having a nicer phone that's sealed and seamless, rather than wasting it.

Re: Apple Says It Slows Older iPhones to Save Their Battery Life

#78
post #20

How come that the MASSIVE slowdown of my iPhone 6s occurred after upgrading to iOS11? TBH the spin that Apple is sending out to make us believe that this was all a clever implementation (which it still might be) does not match with the reality that iOS 11 was creating the slowdown of a device that was working 'fine' before. And yes - this 6s is eligible for the battery replacement program and the Geekbench scores als…

You can see that a LOT more devices were affected on iOS 11. I assume they tweaked the algorithm as to when it's triggered.

https://www.geekbench.com/blog/2017/12/iphone-performance-an...

Re: Apple Says It Slows Older iPhones to Save Their Battery Life

#79
post #29
post #3

It's not only to make them run longer - they're reducing the peak demand on the batteries to avoid spontaneous shutdown when the aged battery can't handle the load. This seems like a good idea, and it appears to be well executed (ie it's not apparently based just on age or milage like a crappy car maintenance reminder), but Apple should probably have something in iOS that tells people their phone is running slow beca…

This comment deserves more attention. And, in fact, means the headline is wrong. Apple is not slowing down devices to extend battery life. Apple is slowing down devices to prevent the thing from crapping out entirely ("unexpectedly shutting down"). Arguably, this does more to prevent obsolescence than plan it. Agreed with @djrogers suggestion to alert the user to the situation. It should not be a user choice. "Last y…

> Arguably, this does more to prevent obsolescence than plan it.

Why not simply make the battery replacable?

Re: Apple Says It Slows Older iPhones to Save Their Battery Life

#80

My wife had a phone replaced off Apple about 6 months back because it was shutting down for no reason about 40% battery life. She’s recently upgraded from 10.x to latest version. She’s noticed an actual decrease in performance to the point where she’s nearly punching the phone. It just locks up for no reason. I’d like to blame this on the battery or age of the phone but I can’t. It is an iPhone 6 but it is only half…

Run the benchmark test and see if performance is way below expectation.

Just because Apple replaced the phone doesn't mean the battery isn't deficient.

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