That's why my iPhone 14 Pro Max health is still at 100% (automation when battery = 80% play timer, or turn fibaro wall plug off)
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iPhone 15 Models Feature New Setting to Strictly Prevent Charging Beyond 80%
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To be fair, my iPhone’s battery only goes to 80% anyway… Just hang on to a phone for a couple years to unlock this.
is this actually healthy for the battery? I know for a fact that keeping the phone charged at 100% for a long time is definitely harmful to the battery but is it good to never charge past 80%? doesn't that kill the battery cells that are never gonna be used inside the battery? as far as I'm concerned batteries like to be constantly drained and charged on a loop.
It doesn’t fill up like a glass, all the cells get charged, but the closer it gets to 100% the harder it is to push in more charge. Going past 80% stresses the battery, going past 90% stresses it a lot more. But dipping below 30% is worse and charging from 10% to 20% causes more stress than going from 90% to 100%.
In the long run, it will be available to all iPhones ;-)
I would prefer a pop up when I connect a charging source that asks me whether to charge to 80 or 100%.
If I set it to hit 80% and stop for normal usage, on the occasions I know I will be away from power for a while I now have to navigate into the menu and remember to switch this feature off beforehand......
If the action button had a double tap option I could set a shortcut to open the menu to the correct page at least......
If I set it to hit 80% and stop for normal usage, on the occasions I know I will be away from power for a while I now have to navigate into the menu and remember to switch this feature off beforehand......
If the action button had a double tap option I could set a shortcut to open the menu to the correct page at least......
I always went with trying not to dip below 20%
So are you saying 30% is a better level?
Yes; modern batteries make sure each of its cells is used an equal number of times, thanks to clever battery controllers.
When discharging, they will first discharge the "oldest" cells, and when charging it'll fill up the cells that have been empty for the longest time.
So charging from 40% to 60%, then discharging back to 40%, and doing this five times for a total use and charge of 100%, your battery will have gone through exactly one "cycle", with each of its cells having been charged and discharged once. Hence why a charge limiter makes sense; most of your battery's wear comes from charging beyond ~75% and discharging below ~25%, as well as staying at those states. Want to kill a battery fast? Keep it at a 100% as much as possible, and when it's empty, leave it dead for a while, or charge it to 20% and then drain it back to 0%.
Take it from a guy whose primary work laptop, a 2 year old macbook air, is still at 97% capacity with heavy daily use and close to 170 cycles. Always kept it between 25% and 75% with a charge limiter, unless I'm about to travel somewhere.
I only ever use around 50-70% in total unless I'm travelling or there's some other exceptional case. Wireless chargers at home and at my workplace help me keep a steady level without requiring pretty much any brain power.
I've got an iPhone 14 Pro Max and it is days away from a full years use. I'm at 100% battery health. I enable Optimised the day I got it... and left it on. Seems to have helped for sure. And that's what is gonna happen when I pick up the new one on Friday! Set it, forget it.
You can still charge to 100% if you know you're going to need it (when travelling, for example). But limiting to 80% for your normal daily charge will preserve battery health. Worn batteries not only have less capacity - they charge slower as well.
Some EVs already have LFP (Lithium Iron Phosphate) battery technology which can charge routinely to 100% without causing extra wear. But those have a weight penalty, so are better suited to cars than phones.
Dumbest feature ever. So you voluntarily choose to have a battery degraded by 20%. ☠️
My iPhone 13 Pro without any safety measures is after 2 years at a 88% capacity. That’s still 8% more than you choose with this option. 😂
My iPhone 13 Pro without any safety measures is after 2 years at a 88% capacity. That’s still 8% more than you choose with this option. 😂
Simple solution: just make the battery 20% smaller to begin with! 🤷🏾♂️
No, hang on; waitasec … 🤔
Technically yes, 30-70% would be better, but 80-20% are a good enough compromise between convenience and battery health.
I'm not sure who else, but I know Tesla does this for their Model 3s; if you don't buy the "range upgrade", your battery is limited to 80% capacity, the upgrade removes this cap to allow charging to 100%.
As far as apple's devices go, based on what apple employees and other technical folk have said there is a small amount of extra battery that's used for extra headroom (an employee told me that every apple device starts out at >100% capacity, which only their diagnostics tools show), as well as the find my network once your battery is dead. So when your phone shuts off at 0%, it might actually still have a couple % left, but those are reserved to keep some core parts of the system running and to ping other apple devices.
I'm certain it's nowhere near 20% of the total capacity, though.
It's not degraded, you can toggle it off whenever you please. My 1yo iPhone 13 that I usually keep between 20 and 80% is still at 98% health with close to 300 cycles. If it ever drops low enough for me to notice the impact I'd eventually stop limiting its charge.
Partially true.
It seems that the consensus is to keep the charge between 20-80 most of the time. But then occasionally but regularly you should let it charge to 100%, preferably letting it sit on the charger for 24 hours.
With that said, I haven’t found any consistent claims as to how much this improves battery longevity over time.
For me, it isn’t worth the time and effort to follow a regimen like this. I’d much rather not have to (also) think about battery and just pay to have it replaced as I don’t keep my lithium powered consumer electronics for more than 2-5 years max.
On a meta level, I also think this news story is a giant nothing burger that’s just going to distract us from the real issue which is Apple’s overpriced batteries and artificial limitations for 3rd party battery replacements and parts.
Our iPhone batteries wearing down too fast is only a big concern for most of us because of how needlessly expensive Apple has made battery replacements.
It’s not all or nothing though. It’s just an option (probably one disabled by default) that you can enable or disable at will.
If you don’t have easy access to a charger and use your phone heavily during the day, then by all means, disable this option.
For me, on regular days enabling the 80% charging cap isn’t an issue since the phone’s connected to power anyway. At the end of the day, it will still be at 80% when I take it off the office charger.
I prefer to preserve battery health so on the days that I’m away from a charger and actually need it, the full 100% charge can give me 8 hours of use instead of just 6 hours.
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I’d be interested to know how intelligent this is… I have a hybrid working pattern which differs every week - it’s not the same days each week. If I’m working at home (3 days a week usually) I run my Mac and iPhone off batteries, and put the Mac on charge at lunchtime and overnight. The iPhone I generally only charge over night. On the 2 days in the office (I work in 4 different locations) I generally charge both all of the working day.
I use shortcuts to have me notified when charge levels raises above 75%. Almost the same thing
But, this option would give us the possibility to have the phone on the charger all day when at home.Then you don't use any cycles at all.
Exactly what I wanted to post - you never really discharge to 0% or charge to true 100%. It's kinda like hard disks/ssds - they have more sectors than they report to user, so you wouldn't panic every time one of it goes bad.
Anecdotally, my 11 months old 14Pro, charged by wire (20W charger) basically nightly, is still at 100% battery health (as for how much you can really trust that metric is another thing though).
BTW: what would be actually less healthy - going more often from 80 to 0, or from 20 to 100%?
For me that setting is pointless, as I don't intend to keep this phone for 5 years, and even if I would - battery replacement in the middle of it's lifespan would not cost fortune and probably be wise anyway. Not to mention - there are days when suddenly the sun is shining, screen goes super bright, photos are taken aplenty etc - you can't predict every occasion when you'll need the full capacity.
It basically means using max 80 percent of the battery all the time. I'd strongly prefer using it as a whole battery pack (100%) and then replace it when its health gets below 90-85 etc. The only problem is apple doesn't replace it if it's not below 80% even if you pay. I don't get it. I wanna pay and they don't accept it.