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iPhone Performance Degrades as Battery Ages

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Re: iPhone Performance Degrades as Battery Ages

#111

Post by freeflight »

Still does not really explain why my 4S suffered from both after an iOS update: Reduced screen-on time and degraded performance at the same time, that was a couple of years ago tho. As a user, it's just utterly baffling how apps that used to work fine suddenly became near impossible to use, like messaging apps taking ages to type a word, the phone felt like a computer with too much bloatware running in the background, struggling with the most mundane tasks.

Since that happened I've been putting off installing the iOS updates because this degradation in performance, after an iOS update, has been way too common of a theme over the years.

Re: iPhone Performance Degrades as Battery Ages

#112

Post by jmull »

fourthark wrote: post #105
briandear wrote: post #100

Earlier quoted context omitted.

It does do that.. it tells you your battery needs servicing.

Maybe it warns when the problem gets more severe. But the problem described here is when the battery still has as much as 80% capacity. Source: I have 6s+, noticed it was slow recently, after some updates but not right after. Read about this. Got GeekBench and battery test. It tests normal when the battery is full, slower when battery is less full.

Just because it’s interesting to compare: it was worse for me. My 6 Plus (three years old) ran at 600Mhz most of the time according to CPU DasherX, fully charged or not. Normal is 1400Mhz. I replaced the battery this morning and it’s back to the normal level and is quite noticeable in real-world usage doing practically anything.

(It wouldn’t surprise me if the GPU or something else in the rendering pipeline was even more affected than the CPU. There were previously long delays in things that just seem to be screen rendering. Those delays aren’t just faster now, but are completely gone.)

Re: iPhone Performance Degrades as Battery Ages

#113

Post by pfranz »

dmethvin wrote: post #92
MBCook wrote: post #62

Earlier quoted context omitted.

Another idea: Apple could pop up a dialog at a certain point saying your battery is sub-optimal (but not doomed) and you should replace it for the best experience. I’m sure that would go over GREAT.

That would cost Apple a lot if those people had Apple Care. Better for Apple if the minority people who perceive a problem come in and ask for a replacement/

That wouldn't be any different from now or what they do with laptops.

For laptops, as part of their hardware test they had a chart for the battery. The expected cycle count was listed in quite a few places (it was 200 for removable batteries and jumped to 1000 when they started making them non-removable). X was the cycle count and Y was the battery's maximum charge (I tried to find pics, but couldn't). The chart had a diagonal red line marked "defective." They replaced your battery if it was within the defective range, but not if your cycle count was too high.

Phones aren't any different, they're just more hand-wavy about the battery (they don't show or mention cycle-counts).

Re: iPhone Performance Degrades as Battery Ages

#115

Post by ohyes »

jamesrom wrote: post #107
ohyes wrote: post #96

Earlier quoted context omitted.

The solution is a battery you can replace, like every phone used to have. There aren’t only two solutions to this problem. (Technically you can still replace the iPhone battery, unfortunately it isn’t trivial like in the bad old days when phones didn’t have high def touch screens.)

This isn't a solution. It's a trade off like every other decision.

Yeah thats true it’s a tradeoff, but by that definition there are no solutions to anything.

So I’d argue it’s both a solution and a tradeoff.

Re: iPhone Performance Degrades as Battery Ages

#116

Post by turtlebits »

Xorlev wrote: post #10
Devagamster wrote: post #9

Earlier quoted context omitted.

I imagine most users would prefer their iphone to stay on for a reasonable period over being super zippy. And like the other commenters said, replacing the battery will fix the problem.

This was the final straw for me to move to Android. My 6S was unusably slow with iOS11. I'd rather this be something _I_ can control. At the very least, the performance should improve if you plug in the phone, and it doesn't. Edit: other thing I remember is that when I upgraded iOS10 at one point my battery _stopped_ being reliable. I was getting the unexpected shutdowns at Another weird thing I had experienced: afte…

My 6S+ was also literally unusable after the iOS11 update. 5 second hangs on some actions, jittery scrolling.

It improved after a few weeks. Not sure if it was an .x update that fixed it, or maybe it needed time to reindex (?) but it's fine now.

Re: iPhone Performance Degrades as Battery Ages

#118

Post by raz32dust »

Someone1234 wrote: post #6

I feel like more transparency would have been welcomed, but aside from that this is a "no win" situation, since you have to pick a winner: - Do you degrade performance but leave screen-on time relatively unchanged? - Do you degrade screen-on time but leave performance relatively unchanged? Most Android devices seem to do the opposite (lose screen-on time, but keep performance relatively unchanged). Different people w…

I am sure they could make an iPhone with replaceable batteries. I actually wouldn't mind paying $100 every 18-24 months for a genuine iPhone battery replacement if the perf and battery life is restored with that. But of course they won't.

If iPhone X lasted 5 years with the same perf and battery life with two $100 battery replacements, I would happily shell out $1200 for it. But I know it won't last more than 2 years (like almost every other phone at this point), and then the math doesn't work out for me.

Re: iPhone Performance Degrades as Battery Ages

#119

Post by [deleted] »

ohyes wrote: post #96
Someone1234 wrote: post #6

I feel like more transparency would have been welcomed, but aside from that this is a "no win" situation, since you have to pick a winner: - Do you degrade performance but leave screen-on time relatively unchanged? - Do you degrade screen-on time but leave performance relatively unchanged? Most Android devices seem to do the opposite (lose screen-on time, but keep performance relatively unchanged). Different people w…

The solution is a battery you can replace, like every phone used to have. There aren’t only two solutions to this problem. (Technically you can still replace the iPhone battery, unfortunately it isn’t trivial like in the bad old days when phones didn’t have high def touch screens.)

[deleted]

Re: iPhone Performance Degrades as Battery Ages

#120

Post by [deleted] »

raz32dust wrote: post #118
Someone1234 wrote: post #6

I feel like more transparency would have been welcomed, but aside from that this is a "no win" situation, since you have to pick a winner: - Do you degrade performance but leave screen-on time relatively unchanged? - Do you degrade screen-on time but leave performance relatively unchanged? Most Android devices seem to do the opposite (lose screen-on time, but keep performance relatively unchanged). Different people w…

I am sure they could make an iPhone with replaceable batteries. I actually wouldn't mind paying $100 every 18-24 months for a genuine iPhone battery replacement if the perf and battery life is restored with that. But of course they won't. If iPhone X lasted 5 years with the same perf and battery life with two $100 battery replacements, I would happily shell out $1200 for it. But I know it won't last more than 2 years…

[deleted]
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