iPhone 15 Models Feature New Setting to Strictly Prevent Charging Beyond 80%

[awshucks]

It would make much more sense to automatically turn on Low Power Mode below 20%...
But you can do this in Shortcuts.

Personally, I keep my 86% battery health 13 Pro on low power mode all the time Does not affect anything but the display, which goes down to 60hz.

 

[telo123]

Wait, so, does this mean that you will only be using 80% of your battery's capacity instead of the full 100%? I'm confused.

No. Once you get to 80%, it stops charging. Help with longevity of the device.

 

[zorinlynx]

This is a great feature; the only time I need more than 80% of my battery capacity or a day is typically when I'm traveling. You can just flip the switch off during those times.

It's a bit annoying they're not offering it to everyone though. This can definitely be implemented on any model of iPhone.

 

[JRoDDz]

So you are basically throwing away 20% of your charge life for some extra charge cycles a few years down the road? I don't get it.

 

[G3Blue]

Nope. Charge to full, smash the battery, MagSafe in the car, upgrade after a year. It made no difference on the 13 pro. The 14 pro just had a **** battery.

 

[JPack]

Naw. The iPhone 15 and 15 Plus don't have the A17 Pro chip. It must be something built into the USB-C port... just like how iPhone 15 and 15 Plus can only transfer data at USB 2.0 speeds.

A17 Pro has more neural cores for the trillions of AI calculations needed to pause charging, while the new iPhone 15/Plus are all blessed by Cook himself. That's why older devices don't get this feature.

Right, Apple?

 

[anshuvorty]

No. Once you get to 80%, it stops charging. Help with longevity of the device.

I still don't understand. So, since it stops charging at 80%, that means that you only have 80% of your battery's capacity instead of the 100% capacity. So, as others have pointed out, you are losing out on 20% of your battery's capacity!

Is that correct?

 

[david.h]

iPads should have this too

 

[Michael Scrip]

No. Once you get to 80%, it stops charging. Help with longevity of the device.

So it will just be wearing down that same 80% of the battery? Is the other 20% never touched?

And does the other 20% get used eventually?

Like others here... I'm a little confused about how it works on a technical level.

Yes... I understand the phone will stop charging at 80%... I'm just wondering what it actually does to "improve an iPhone battery's lifespan"

🤔

 

[tgwaste]

It needs the new and revolutionary B(s)1 chip.

brilliant!

 

[newton4000]

So someone explain this to me...
After a year my battery is at 94%.
I am going to guess that it would it take it another 2-3 years to get down to 80%. And I guess in 4 years we might be at let's say 75%. While your carefully managed battery would still be getting 80%.
So basically, I would be trading off 3 years of less battery life to have potentially more battery life in about 4 years?
I'm confused....but I suppose if it suits your usage habits.
How much does a battery replacement cost these days?

 

[repoman016]

... how is this iPhone 15 only...

moneymoneymoneymoneymoney

I'm sure it will be more widely available after launch and sales slow

 

[Cloudyskies22]

Absolutely stupid. Yeah let me extremely negligibly save battery longevity only to cost myself more full depletions, and more charging. This is actually hilarious because it’s extremely detrimental to the end users who will knowingly turn it on but cost themselves massive user experience and ease-of-use.

You just don’t worry about battery…simple as that.

Next thing you know people will want a minimum limit of 20% so their phone automatically shuts off at 20% therein saving it from the lower detrimental charging percentages too.

Meanwhile EVERY single one of the people who use this feature are simultaneously people who complain that the battery life isn’t good and they want more battery added. Now they’re going in and literally artificially limiting a massive percentage of their battery capacity lmao. Priceless

 

[2540497]

Be good to know how much it actually extends the battery life so I can make an informed decision about whether it’s actually worth it.

Anyone actually know?

 

[sw1tcher]

How long before non-iPhone 15 users get together and file a class action lawsuit against Apple for allowing older iPhone batteries to degrade faster?

#iPhoneBatteryGate2

🤣

 

[JPack]

So it will just be wearing down that same 80% of the battery? Is the other 20% never touched?

And does the other 20% get used eventually?

Like others here... I'm a little confused how it works on a technical level.

Yes... I understand it stops charging at 80%... I'm just wondering what it actually does to "improve an iPhone battery's lifespan"

🤔

Extreme states of charge like 100% and 0% negatively affect battery health because the materials expand and contract.

 

[CygnusTC]

First setting I will turn OFF when I get my new phone. I want the max capacity always. I don't buy a car that can go 80 MPH to turn a switch to stop me going beyond 60 MPH. And this is from someone still using an iPhone 8 PLUS on the ORIGINAL battery. Doesn't last as long as it did but 6 years in and still getting almost a day battery is acceptable.

 

[rui no onna]

It would make much more sense to automatically turn on Low Power Mode below 20%...
But you can do this in Shortcuts.

Haven’t iPhones done this automatically for a long time even without shortcuts? It seems iPads, too, with more recent iOS versions (iirc, triggers at 10%).

 

[hans1972]

... how is this iPhone 15 only...

It will be available as a subscription for older iPhones for technical people.

Regular users will get it for free later.

 

[Bigkool2inSC]

maybe I don't get it with many agreeing to turn this on for the pro.
When i leave my home, i want my phone at 100%. Why would i want it to get 20% less life out of it every day?

so 23 hours (lets say video playback) instead of the actual 29 hours at 100% for the pro max.

I rather use it for it's full potential for the day and when the battery capacity is degraded to around 80% in about 1.5 years, get a new battery put in.

I think poeple are sometimes missing out because they are worried too much about battery life and battery health.
it's a battery........ in a phone..

I keep my lock screen on a good high brightness, got background app refresh on for all the apps I like for it to be on for.

you paid good money for a product so that you can maximize it's use, not worry about how to keep it pristine and try to make it last for 10 years..

use it like it's meant to be and get a new battery put in after about 1.5 - 2 years..

#F*ckBatteryAnxiety

 

[F23]

i would turn this on at home, and turn it off while out & about, preferably with a location triggered shortcut.
great quality of life improvement. although, typical AAPL fashion to restrict it to the new 15 models.
well played, Timmy.

 

[Macalicious2011]

Good to know. My launch day iPhone 14 Pro is now down to 89% after a mixture of wireless charging in the car and overnight charging (optimized) at night (with MagSafe mostly).

I'm probably going to try to forgo wireless charging altogether when my iPhone 15 Pro Max gets here and see how that affects battery health over the next year.

I have ordered a esr magsafe charger wirh cooling fans. This will hopefully minimise the risk of premature battery wear.

 

[Nozuka]

Calling it now: Will be available for all devices 17.1 the latest.

But lets all get upset

 

[2540497]

Extreme states of charge like 100% and 0% negatively affect battery health because the materials expand and contract.

By how much though?

If I go a year with this 20-80 cap, how much better is my battery going to be than someone who goes 0-100?

Answers on a postcard please?
Scientific sources only.

Many thanks!

 

[zapmymac]

Nice, hope this comes to macOS as well, where the OS will sometimes notice that you're constantly plugged in and stay at 80%, but it's really inconsistent. Just let me configure it!

I use a 3rd party app Al Dente to stop at x%….works great