I agree, but what you said about people wasting battery life for nothing kind of got to me, it implied way to much about others than just yourself. "Do people really burn through their batteries for no reason?"
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iPhone 15 Models Feature New Setting to Strictly Prevent Charging Beyond 80%
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So what you’re saying is that after all your use your phone still has 9% more than this feature…. This is a dumb idea folks
I don't understand why so many don't get this at all.
If you always charge from 0-100 you'll get 500 cycles before the capacity drops to 80%. So that's 100x500=50000%
If you charge from 30-80% you'll get 5000 cycles before the capacity drops to 80%. So that's 50x5000=250000%!
If you always charge from 0-100 you'll get 500 cycles before the capacity drops to 80%. So that's 100x500=50000%
If you charge from 30-80% you'll get 5000 cycles before the capacity drops to 80%. So that's 50x5000=250000%!
I have a 12 Pro Max purchased on launch day and have used LP mode since day one. I don't have a 120Hz screen so it doesn't affect me as much, but my battery capacity is at 93% being at minimum a year older than your phone.
This is going to be so useful for things like standby mode where I definitely do not want the battery to sit at 100% for 6+ hours, or long car rides where the car cradle is also a wireless charger.
If most of us think about how we go about our day, I think we’d find we’re rarely in scenarios where it’s essential to have a 100% charge. Most of us are not out and away from any charging options all day. For those of you who are, then don’t activate this setting.
And it’s not like once we turn this on we’re stuck at 80% forever. If I’m at Disneyland for the weekend or on vacation and I know I’m in a situation where I’m going to both use the phone more and have fewer charging opportunities, then I’d let the phone get to 100 before I went out. Otherwise 80% and a few top offs here and there is totally fine for my use case. YMMV
If most of us think about how we go about our day, I think we’d find we’re rarely in scenarios where it’s essential to have a 100% charge. Most of us are not out and away from any charging options all day. For those of you who are, then don’t activate this setting.
And it’s not like once we turn this on we’re stuck at 80% forever. If I’m at Disneyland for the weekend or on vacation and I know I’m in a situation where I’m going to both use the phone more and have fewer charging opportunities, then I’d let the phone get to 100 before I went out. Otherwise 80% and a few top offs here and there is totally fine for my use case. YMMV
Yes, but an MFi brick also has the same capacitors and onboard controller. Without it, the phone can't always regulate directly from the wall and is having to continuously control the voltage. In American power grid, that's relatively stable in most major cities at 220/2 or 110v. The phone only needs .1 Amps or so to get the 20W, but the phone may get more without the brick regulating the channel. Also, a damaged or subpar quality cord may cause the amperage to fluctuate wildly, thus further decreasing the amperage and making the phone consistently phase change
Because that’s the limitation with lithium based batteries. It’s not an Apple issue, it’s an every-device-that-has-battery issue.
Why would setting your own battery limit, the way I can do with my Tesla, cause any issues? The closer you can get to 50/60%, the better. Especially for people that work from home. I spend days at a time at home, only going out to do groceries, lunch and the gym, but then I have days where I’m on the road or stuck in airports and working exclusively off my phone.
Why don’t they just go back to making it ez to replace the battery! In the Ultra watch 4 screws hold the bottom in place and it can be removed easily. Unfortunately, the battery is on top of everything accessible from this bottom opening. And that’s what its like to be trapped by smart, Possibly greedy folks...
With Tesla, you just use an app. You plug in your car at home, then you schedule the car to begin charging at X time (usually off peak hours), and end at X percentage, suggested at 80%. Done and done. I don't see why phone and laptop makers can't do the same.
I think you misunderstood my intent.
Only Apple is going to these lengths to "prolong" battery lifespan and device battery life. Not really sure as to Apple's strategy. Let's say that the result to date has been less than "optimal".
Besides my Apple stuff, I currently have 5 (3 mine and 2 I gifted to family) Android devices active, some with better battery life/health than my 13PM, some worse. All kinds of charging / use styles. What has Apple so concerned? Or is this just another marketing point.
This feels like an Apple battery iteration of "hypermiling".
There is very little difference between battery wear at 50% charge and at 80% charge. The wear curve is non-linear and begins to go up much faster after around 80%. Sure you could charge to 50% but then you are getting much less charge for a minimal reduction in wear. Apple chose 80% as likely to be the best balance between wear and charge.
If you prefer to limit charging to 50%, that’s fine.
On Macs, you can install AlDente and choose exactly what charge limit you want. on the iPhones, Apple tends to choose a preset that will satisfy most of its customers.
I was replying to someone else who was talking about ”people burning through their batteries”. When there are so many comments back and forth it can be easy to misconstrue the context of a comment.
The problem points are the extremes near 0% and 100%. Phones rarely are allowed to go down to close to 0%, but are frequently (almost always) charged to 100%. So this change solves that point. It is the amount of time sitting near the extremes that is the issue. There is some theoretical advantage to maintaining the batter storage close to 50% more often. But the gains in battery degradation are going to be so minor that it is not worth any of your time and effort to do this. Most of the gains are getting rid of time near the extremes. I'd actually slightly pref this mechanism if it was set up to cap charging at 90%.
Yeah, I have a 12 Pro mini (yes, it had mediocre battery life). I got the battery replaced in November of last year by Apple. I'm at 89% battery capacity as of today. Basically your milage may vary. But I'm pretty sure that if I had had this feature, and charged only to 80% overnight at home and then to 80% at some point during the work day, that would have saved my battery quite a bit.
And for many people who don’t use 100% of their battery charge every day, that will be just fine. If you do, this is not for you.
Kind of pointless, I mean I pay for apple care, so apple pays for the battery changes, so why should I limit my charge, so they don't have to change the battery as often, and save them money, when apple care + will cost me the same, whither I enable this, or not. I mean it's on the mag charger at night, in stand by mode, and in my car, during apple car play. And I am calling them when it gets to 84% no matter when it is. And why save them Money, they wouldn't even let me finance the phone for 24 Months, unless I activated with one of the three big carries, with their apple card, (No love for Cricket)
You totally mis the point. My post is about 50% cycles. That isn't strictly daily. Could also be twica a day. Or even three times.
I must be doing something right. Why would my 7 month old iPad Air 5th still be at 102% and my 3,5 years old iPhone SE 2nd at 91% capacity. My iPhone has a lot more cycles than my wifes iPhone 11 Pro and still my capacity is bigger.
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I will re-post the very nice battery university article with tons of proof for the people still not getting this.
The science is firmly established. Denying it is like trying to argue the sun isn’t bright.
For those of you that disagree with the science, nobody’s forcing you to use this.
FYI, for batteries that are to be used in adverse conditions, even lower charging is recommended - satellites go to 60% for example but think how long they’re expected to last.
For a mobile device, charging to the voltage equivalent of 80% is a good middle ground.
Some laptops have a special BIOS setting to prolong battery life that replaces the 100% battery charge level with 80%. So, the OS thinks the battery is really at 100% when it’s really at 80%.
All this is absolutely trivial to implement and simply relies on voltage sensors.
Those sensors are on everything - limiting this to iPhone 15 is so insulting.
The science is firmly established. Denying it is like trying to argue the sun isn’t bright.
For those of you that disagree with the science, nobody’s forcing you to use this.
FYI, for batteries that are to be used in adverse conditions, even lower charging is recommended - satellites go to 60% for example but think how long they’re expected to last.
For a mobile device, charging to the voltage equivalent of 80% is a good middle ground.
Some laptops have a special BIOS setting to prolong battery life that replaces the 100% battery charge level with 80%. So, the OS thinks the battery is really at 100% when it’s really at 80%.
All this is absolutely trivial to implement and simply relies on voltage sensors.
Those sensors are on everything - limiting this to iPhone 15 is so insulting.
While they could add a BIOS setting to lie about the maximum charge level, that would be a hard value and would prevent you from ever using 100% of your batteries capacity. This new charging mode is an option feature that gives the user control over whether they are charging to 80% or 100% depending on their need. Embedding it as a hard coded value in the BIOS would just mess everyone up.I will re-post the very nice battery university article with tons of proof for the people still not getting this.
The science is firmly established. Denying it is like trying to argue the sun isn’t bright.
For those of you that disagree with the science, nobody’s forcing you to use this.
FYI, for batteries that are to be used in adverse conditions, even lower charging is recommended - satellites go to 60% for example but think how long they’re expected to last.
For a mobile device, charging to the voltage equivalent of 80% is a good middle ground.
Some laptops have a special BIOS setting to prolong battery life that replaces the 100% battery charge level with 80%. So, the OS thinks the battery is really at 100% when it’s really at 80%.
All this is absolutely trivial to implement and simply relies on voltage sensors.
Those sensors are on everything - limiting this to iPhone 15 is so insulting.
TLDR: The (far) largest factor in battery degradation is going to be one you can’t control: luck (i.e., “battery lottery”).
If you have a monitoring obsession, recalibrate every month or so:
help.ifixit.com
www.analog.com
If there’s a control compulsion:
If you have a monitoring obsession, recalibrate every month or so:
Battery Calibration - iFixit Support
All newly-installed smart batteries should be calibrated as soon as possible. This helps your system get an accurate reading on the battery’s state of charge. W
help.ifixit.com
Battery Fuel Gauges: Accurately Measuring Charge Level | Analog Devices
Battery fuel gauges determine the amount of charge remaining in a secondary battery, and how much longer (under specific operating conditions) the battery can continue providing power. Such indication is useful only if it offers both accuracy and rel
If there’s a control compulsion:
Apple said:
Batteries - Maximizing Performance
Maximize the life and lifespan of the rechargeable lithium-ion batteries in your MacBook, iPod, iPhone, and iPad.
www.apple.com
I was just providing an example of other approaches using a BIOS. I use that on my laptop because it’s plugged in a LOT of the time and if I kept the battery at 100% constantly it would kill it.
Same goes for an iPhone used for long CarPlay drives.
The combination of heat and staying at 100% for hours is not good for batteries.
Again - it’s just part of the battery chemistry we have to deal with.
Having options for those situations is a good thing.
If you don’t like the option don’t use it.
But it’s really convenient to have.
And for those that think longevity is just battery lottery - to a small extent there are variations, sure. But at the end it’s all chemistry. You won’t ever have a battery that will last 3x vs the average. Plus or minus a few percentage points, sure.
Good battery management is the #1 way to preserve battery life for when you want to have really long runtimes
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So limit your runtime to get longer runtimes, yeah, that makes sense.Good battery management is the #1 way to preserve battery life for when you want to have really long runtimes
To say what you meant more accurately, cut down your charging so your watch battery lasts longer over its lifetime. Doesn't make sense for me, I wont keep a watch that long and longer runtimes (daily) is what works.
Got mw new AW2 today! It's heavy compared to me AW6, and it doesn't really look that goofy on me, even with small wrists. Love the bigger screen!
But 2lbs for the packaging -- that's a bit much!
The watch is a bit different since it’s far less likely to be on a charger during a long, hot drive for 10 hours, for example.
Keeping a battery at 100% in those conditions for that long isn’t good for it.
It is what it is, that’s the chemistry and the only cure is to NOT keep it at 100% for long
Like I said - if you don’t like doing that then don’t do it, but not providing the option is stupid.