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The iOS option to charge battery to "80% Limit" shouldn't just be for iPhone 15

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Re: The iOS option to charge battery to "80% Limit" shouldn't just be for iPhone 15

#151

Post by yjftsjthsd-h »

alphabettsy wrote: post #138
vachina wrote: post #96

Earlier quoted context omitted.

If iPhones have replaceable batteries (the kind you can slot in and out) then you’d be right. Replacing an iPhone battery at an Apple Store costs about 1/3 the price of the phone by the time you need it replaced, so ideally one would want the battery to last as long as the lifetime of the phone. One way to delay liion battery ageing is to shallow charge. Case in point I’ve a 6 year old dell laptop that is set to shal…

1/3 the price of the phone? An iPhone battery replacement is $49-99 at an Apple Store.

The rest of that was,

> about 1/3 the price of the phone by the time you need it replaced

So that sounds plausible if iPhones can be purchased for $150-300 at the age you'd replace the battery. (Though that does strike me as a little low, still? Depending on how long the battery lasts...)

Re: The iOS option to charge battery to "80% Limit" shouldn't just be for iPhone 15

#152

Post by jauco »

Dylan16807 wrote: post #140
adastra22 wrote: post #134

Earlier quoted context omitted.

Optimized Battery will charge your phone to 100%.

Right, once overnight is ending. It only optimizes overnight, with the battery limited the vast majority but not right at the end. I don't see the conflict.

It doesn’t work if I plug my phone in at 9am in the morning. It will charge my phone to 100% immediately in that case. Even if I leave it connected to power all day. Breaking my battery.

Optimized charging is based on learning and thus unpredictable and hard to influence. It only works if you have rigid habits.

Re: The iOS option to charge battery to "80% Limit" shouldn't just be for iPhone 15

#153

Post by dc3k »

rubatuga wrote: post #98
dc3k wrote: post #90

Earlier quoted context omitted.

Artificially limiting yourself to 40% of your battery’s capacity to extend its life seems like an enormous waste of effort My last phone spent like 8-10 hours a day on and off a wireless charger and had 88% battery health when I sold it over two years after I bought it

I'm pretty sure 88% health means like 80% original capacity since iPhones actually shut off at 20% real capacity to protect the cell.

Assuming that’s correct, by me not janitoring my battery for over 2 years I still have double the capacity of the guy who I originally replied to

I really do not understand how that’s worth “a lot of manual toil”

Re: The iOS option to charge battery to "80% Limit" shouldn't just be for iPhone 15

#154

Post by HnUser12 »

Dylan16807 wrote: post #140
adastra22 wrote: post #134

Earlier quoted context omitted.

Optimized Battery will charge your phone to 100%.

Right, once overnight is ending. It only optimizes overnight, with the battery limited the vast majority but not right at the end. I don't see the conflict.

No, it works any time of the day. It just depends on your charging habits. And it also depends on your location, if you’re away from your primary location, it still charges to 100% when plugged in during your normal charging times.

Re: The iOS option to charge battery to "80% Limit" shouldn't just be for iPhone 15

#155

Post by kccqzy »

gnicholas wrote: post #146
kccqzy wrote: post #131

Earlier quoted context omitted.

It's very different when you are dealing with a $1000 object versus a $40000 object, where the replacement of the battery could cost $300 and $20000 respectively.

Are we talking about phones and cars here? What phone costs $300 for a new battery? I assumed Apple would be on the high end, and they charge a fraction of this ($100ish, IIRC).

That was only an example. My argument is only strengthened when you use the actual cost of battery replacement.

Re: The iOS option to charge battery to "80% Limit" shouldn't just be for iPhone 15

#156

Post by adastra22 »

spenvo wrote: post #150
adastra22 wrote: post #14

> The difference is that Optimized Charging kicks in only when your iPhone is normally idle, typically overnight. The new 80% charging feature (that’s limited to iPhone 15 models) doesn’t try to be as smart, and simply works all day long. That’s not how the Optimized Battery feature works, according to the help text displayed right next to the feature in the Battery Health settings. I question the whole premise of th…

Author again, “I question the whole premise of the article” What? You got tripped up on my wording, sorry. But the article's premise is valid, and it's not cool that the top comment on this submission for its first three hours on HN has totally lacked curiosity and come to a sensationalist conclusion. Do you have any actual problems with the article? Could you list them? (You responded to others but not my previous c…

Do you have any evidence to back up your claim that there is no hardware or inaccessible firmware difference between the iPhone 15 and 14 which might suggest a different charging strategy and/or limit their ability to roll this out to earlier versions? Or are you just spitballing here?

Re: The iOS option to charge battery to "80% Limit" shouldn't just be for iPhone 15

#157

Post by spenvo »

adastra22 wrote: post #156
spenvo wrote: post #150

Earlier quoted context omitted.

Author again, “I question the whole premise of the article” What? You got tripped up on my wording, sorry. But the article's premise is valid, and it's not cool that the top comment on this submission for its first three hours on HN has totally lacked curiosity and come to a sensationalist conclusion. Do you have any actual problems with the article? Could you list them? (You responded to others but not my previous c…

Do you have any evidence to back up your claim that there is no hardware or inaccessible firmware difference between the iPhone 15 and 14 which might suggest a different charging strategy and/or limit their ability to roll this out to earlier versions? Or are you just spitballing here?

Hey! (thanks for expounding on your concerns).

The claim from the article is that a fixed 'charge to 80% feature' is "likely possible on earlier models". I asked Apple to comment and am curious what they say. We do have evidence for the article's claim: iPhones dating back to at least the iPhone 8 support a feature that limits charging to 80% for multiple hours per day already. It just only occurs during hours Apple chooses via its learning algorithm. I never claim that the hardware is/is-not different; you simply have to look at what is already supported to understand what the devices are capable of.

Re: The iOS option to charge battery to "80% Limit" shouldn't just be for iPhone 15

#158

Post by gnicholas »

kccqzy wrote: post #155
gnicholas wrote: post #146

Earlier quoted context omitted.

Are we talking about phones and cars here? What phone costs $300 for a new battery? I assumed Apple would be on the high end, and they charge a fraction of this ($100ish, IIRC).

That was only an example. My argument is only strengthened when you use the actual cost of battery replacement.

Gotcha — just making sure I wasn't missing the comparison.

Re: The iOS option to charge battery to "80% Limit" shouldn't just be for iPhone 15

#159

Post by stefandesu »

Cody_C wrote: post #126

These kinds of features being so limited annoys me. Like GoPro can only auto clear a video from your sd card that has been uploaded on the newest model. There is no way that is limited to those devices. But, it probably isn't profitable to even crack open the code for the older models so they don't even consider it. It makes it worse because I'm even paying a subscription for storage.

It's much worse in this particular case. They purposefully had to lock the feature behind a device flag to prevent older phones (that still support the newest OS) from using it. I'd expect that they could easily enable the feature for all phones that also support Optimize Battery Charging.

Re: The iOS option to charge battery to "80% Limit" shouldn't just be for iPhone 15

#160

Post by Dylan16807 »

HnUser12 wrote: post #154
Dylan16807 wrote: post #140

Earlier quoted context omitted.

Right, once overnight is ending. It only optimizes overnight, with the battery limited the vast majority but not right at the end. I don't see the conflict.

No, it works any time of the day. It just depends on your charging habits. And it also depends on your location, if you’re away from your primary location, it still charges to 100% when plugged in during your normal charging times.

The article says it only "kicks in" at certain times.

If your argument is that it "works" all the time even when it's not affecting charging, therefore the article is wrong, you are splitting hairs in the worst possible way. And if you're not arguing the article is wrong you might need to reread the comment thread.

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