In the meanwhile, there's https://chargie.org/
The iOS option to charge battery to "80% Limit" shouldn't just be for iPhone 15
11–20 of 173 posts
Re: The iOS option to charge battery to "80% Limit" shouldn't just be for iPhone 15
#12i 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?
Going from 85%-25% instead of 100%-25% can increase the capacity by ~25%: https://batteryuniversity.com/img/content/capacity-retention... [0]
https://batteryuniversity.com/article/bu-808-how-to-prolong-...
Re: The iOS option to charge battery to "80% Limit" shouldn't just be for iPhone 15
#13[flagged]
Re: The iOS option to charge battery to "80% Limit" shouldn't just be for iPhone 15
#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 this article.
Re: The iOS option to charge battery to "80% Limit" shouldn't just be for iPhone 15
#15i 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.
it depends on how you use your phone. when i am outside all day running errands, checking messages, calls, web searches... by the time i get home my phone is usually on the last % before shutting off.
i tend to buy cheaper older models of phones though, that may not have the strongest battery to begin with.
Re: The iOS option to charge battery to "80% Limit" shouldn't just be for iPhone 15
#16That's the point. Apple wants other models' batteries to degrade fast so that the users can upgrade to 15
My X (bought new phone in December when it was released) was at 85+% on the battery.
I replace it with a 15 because it was dropping off the OS bandwagon, needed more storage, battery life, lightning port getting fiddly.
The OS support was the stake in the heart. If not for that I would have looked into getting the phone serviced with a new battery and port, and cleaned up some storage.
Re: The iOS option to charge battery to "80% Limit" shouldn't just be for iPhone 15
#17[flagged]
[deleted]
Re: The iOS option to charge battery to "80% Limit" shouldn't just be for iPhone 15
#18i 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?
Going from 85%-25% instead of 100%-25% can increase the capacity by ~25%: https://batteryuniversity.com/img/content/capacity-retention... [0] https://batteryuniversity.com/article/bu-808-how-to-prolong-...
> Going from 85%-25% instead of 100%-25% can increase the capacity by ~25%
Capacity or longevity?
Re: The iOS option to charge battery to "80% Limit" shouldn't just be for iPhone 15
#19i 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?
Going from 85%-25% instead of 100%-25% can increase the capacity by ~25%: https://batteryuniversity.com/img/content/capacity-retention... [0] https://batteryuniversity.com/article/bu-808-how-to-prolong-...
That's degradation rate in capacity, not overall capacity. But trading off 40% of the energy for a 25% lifetime increase is not a great trade for everyone.
You would then consume almost 2x of those cycles just recharging to make up for the lost capacity.
Re: The iOS option to charge battery to "80% Limit" shouldn't just be for iPhone 15
#20> 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…
Edit: Ah, I can see how you thought my wording was confusing. The feature "kicking in" is that it is not charging (when it typically would be charging). But it could sound like I meant that it's charging when idle. Rephrased to be clearer, thanks. --------
Author here, I think my Optimized Charging description is a fine description of how it works in practice. To borrow from another publication: "Optimized battery charging is a feature on iOS 13 or newer that limits overnight charging to protect your phone's battery in the long term." [0] With it, iOS learns your habits and will try to keep your phone charged under 80% until soon before it thinks you will take the phone off the charger, when it tops it off to 100%. "The algorithm aims to ensure that your iPhone is still fully charged when unplugged." [1] I have also used the feature personally since it came out, and this is how it works. What do you take issue with specifically?
[0] - https://www.pocket-lint.com/what-is-optimised-battery-chargi... [1] - https://support.apple.com/en-us/HT210512