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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

#41

Post by whycome »

xyzzy123 wrote: post #35
Izkata wrote: post #10

Earlier quoted context omitted.

It's for people who only use like 40-50% each day. Going from 50% to 100% puts more strain on the battery than going from 30% to 80%, so limiting the total charge allows the maximum capacity to last longer (in terms of years) than otherwise. And if you do ever need all 100%, just turn off the limit the day before. For me it's a no-brainer: 85% on my current (brand-new) Android phone lasts around 50-55 hours.

I wish they made the batteries slightly larger, then made 100% on the battery meter secretly be 80% of the increased capacity so I could have my cake and eat it.

I'm pretty sure Samsung does a fake-out like this to display your 80% charge as 100. (Samsung.tablet at least)

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

#42

Post by lazycouchpotato »

mistyvales wrote: post #29
metadat wrote: post #2

I have an iPhone 13 mini as my "work phone "and it's indisputably a fantastic, efficient, small phone. However, I am kind of OCD about keeping it between 40-80% charged, which is a lot of manual toil. Conversely, I also have an Android Galaxy S22+ for my personal phone. The "Battery Protect" feature limits charging to 85%. Life is easy with this device and it causes me a lot less anxiety. Really now, why can't Apple…

My Pixel 6 doesn't seem to have this option.. I never looked into third-party apps for it though.

I don't think there's a way to manually limit it to 80% within Pixel's settings. If you turn on Adaptive Charging, it'll charge it to 80% overnight and bump it to 100% just before you unplug your phone in the morning.

https://support.google.com/pixelphone/answer/7106961

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

#44

Post by whycome »

HWR_14 wrote: post #9
em-bee wrote: post #4

i barely get through the day with a fully charged phone, and i don't get enough runtime if my laptop is not fully charged. so i'd like to know more about the science behind this. how much does the battery life actually improve by doing this. is the trade off worth the inconvenience of a shorter runtime before i need to recharge?

How is that possible? Even charging my phone to 80%, I can still use it for at least a day. Although my laptop does get a lot more use.

Full brightness screen is your biggest killer

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

#45

Post by hedora »

On my 13 mini, I just set a shortcut to turn on power save mode when power save mode is turned off.

I also set a geofence around the cell dead spot at my house to enable airplane mode.

The latter spams notifications due to an (anti-stalking?) “feature” of shortcuts that doesn’t let you disable geofence notifications.

That bug can then be fixed by exploiting another bug by enabling screen time, the creating a custom app shortcut that produces a notification. Run the custom app a bunch and screen time will decide it is spam, and force-enable the “disable notifications” toggle for the shortcuts app. (Apparently this doesn’t work on some of the newer/higher end iPhones. My guess is they copy pasted the policy logic for each model, and forgot to backport a bugfix).

The above greatly increased battery life and did so transparently.

Now, all I need to do is buy a smart plug and have it toggle the power on a low-speed charger when the iPhone battery is above 80% or below 60%.

After that, I’ll do the same for my watch and iPad.

Couldn’t be simpler.

/s

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

#46

Post by blackoil »

xyzzy123 wrote: post #35
Izkata wrote: post #10

Earlier quoted context omitted.

It's for people who only use like 40-50% each day. Going from 50% to 100% puts more strain on the battery than going from 30% to 80%, so limiting the total charge allows the maximum capacity to last longer (in terms of years) than otherwise. And if you do ever need all 100%, just turn off the limit the day before. For me it's a no-brainer: 85% on my current (brand-new) Android phone lasts around 50-55 hours.

I wish they made the batteries slightly larger, then made 100% on the battery meter secretly be 80% of the increased capacity so I could have my cake and eat it.

I would be unhappy if my phone has 20% battery left but I can't make a call or check map/WhatsApp.

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

#47

Post by Panzer04 »

jostmey wrote: post #39

Could the decision to support the 80% charging limit for only iPhone 15 be related to changes in battery chemistry? Does the iPhone 15 use a different battery chemistry? I ask because I have noticed my iPhone 15 charges to 80% way faster than my other phones and devices

Unlikely. Virtually all lithium batteries display similar characteristics with respect to charging.

Charging faster is something that can be variable between chemistries, but typically batteries are fine with charging quite quickly in the first 80% regardless, and can be made to tolerate fast charging (though usually you sacrifice a little bit of lifespan or total capacity to increase that tolerance)

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

#48

Post by [deleted] »

blackoil wrote: post #46
xyzzy123 wrote: post #35

Earlier quoted context omitted.

I wish they made the batteries slightly larger, then made 100% on the battery meter secretly be 80% of the increased capacity so I could have my cake and eat it.

I would be unhappy if my phone has 20% battery left but I can't make a call or check map/WhatsApp.

[deleted]

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

#49

Post by Dylan16807 »

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…

> That’s not how the Optimized Battery feature works

Please say what the difference is, then?

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