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A comment on The iOS option to charge battery to "80% Limit" shouldn't just be for iPhone 15. Parent comment

Re:The iOS option to charge battery to "80% Limit" shouldn't... by Reason077 on Wednesday October 18, 2023 @11:33PM (#37938019)
This is just an optional feature, nobody is forcing you to turn it on, or to care about it. Personally I rarely need a 100% charge: my iPhone 13 easily gets through a typical day with 40% remaining. But I do get annoyed when a phone is 2 or 3 years old and the battery is already worn out. Genuine iPhone batteries are expensive, and limiting charging to 80% will significantly extend their life.

Worn out batteries don't just have limited capacity, they charge slower and create more heat while charging due to internal resistance. I'd much rather charge to 80% for my typical day, but have the option to 100% charge on those rare occasions when I know I might need it (long day travelling, etc).

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Re:The iOS option to charge battery to "80% Limit" shouldn't... by Scoundreller on Thursday October 19, 2023 @12:30AM (#37938422)
While not ideal, maybe we could have more trickle chargers? My worry is that the battery actually gets used often but for short periods and that could effect long-term wear.

Personally, I have a Shortcut to put my phone into "low power mode" once it hits 90% (why not?).

Maybe a Shortcut could do the same and turn off power once it hits 80% on your overnight charging dock and then use a small amount of power while the screen is off.

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Re:The iOS option to charge battery to "80% Limit" shouldn't... by gnicholas on Thursday October 19, 2023 @12:55AM (#37938626)
> Personally, I have a Shortcut to put my phone into "low power mode" once it hits 90% (why not?).

Isn't low power mode for when your phone has very little battery left? I don't understand why one would put a phone in low power mode when it's charging and hits 90%.

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Re:The iOS option to charge battery to "80% Limit" shouldn't... by Casteil on Thursday October 19, 2023 @01:14AM (#37938760)
That's the original intent, but there's nothing stopping you from enabling it whenever to try to get the absolute max possible out of your battery. Low power mode does sacrifice quite a bit of functionality by default though.

Personally, my 15 pro can do >72 hours on a single charge WITHOUT doing stuff like this, even starting at 80% (note: mostly standby, no always on display, with ~3h screen on time total). The 80% limit is definitely something I'll be using virtually all the time.

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Re:The iOS option to charge battery to "80% Limit" shouldn't... by gnicholas on Thursday October 19, 2023 @01:18AM (#37938786)
Oh sure, I put my phone in LPM sometimes when I know it's going to be a very long day. But why would someone put it in LPM when it hits 90%? Is that referring to when it charges up to 90%, or when it's in use, unplugged, and is "down to 90%"?
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Re:The iOS option to charge battery to "80% Limit" shouldn't... by Scoundreller on Thursday October 19, 2023 @02:50AM (#37939402)
The latter.

For me, I find the performance/lost functionality fine: https://support.apple.com/en-ca/HT205234

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Re:The iOS option to charge battery to "80% Limit" shouldn't... by wrboyce on Thursday October 19, 2023 @03:59AM (#37939853)
On the other hand, I’ve pretty much stopped using LPM after getting a 14 Pro and getting used to the higher refresh rate of the ProMotion display; I find the slower refresh rate really jarring (I also have a non-Pro 14 which I don’t like using for the same reason).
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