Mythbusting - Question considering Battery Health

[eScenCe]

Actually, I guess in the long run, it will make absolutly no difference.
But we had some nice conversation here ... and as always, so many wrong myths and old facts brought to the table, that I at least thinking about this one:


Newer iPhone, 80% Charge Limit at night. Check.
Assuming you keep your phone on and only use DND, you have battery drain arround 3-6% at night.
Now: Charge every night (!) no matter what from (50 to 80, 75 to 80...) and let the intelligence keep your phone at 80% over night...
OR
don't. Until you are arround 20% ... and charge than.


In Scenario 1, you would have each night a little strain on the battery, but zero to none Cycles. This is especially interesting, if you just top it for the 3-5% DND night discharge, which adds up to about 20 Cycles a year.
In Scenario 2, you would have far more cycles, but less strain.

Same goes for work ; it's more "clever" to place it on charge if you don't use your phone for 4,5,6 hours or let it discharge 10-15% in that time? This adds add up nearly 30 cycles.

I know, we going into Mythbusters here ... or not? Maybe some ultra - technical weblog already looked into this?
If this is all pure assumption, let me at least know, if you top to 80% (or 100%) night or prefer only to charge every 1-2 days.

Thanks, be nice. I know, this is a very flavored topic to some. I for myself, am Team 80% each night.

To make it tl;dr: It's more strain keeping it at arround 80% , even using it on cord or loading it the whole night, even if you don't need it really OR lose cycle counts over and over through idling. I guess this rounds up with the question "HOW good is the intellegint charging that holds 80% charge over prolonged time?"

 

[eScenCe]

At least no answers shows this really is a topic, fully evaluates on myths, assumptions and the trust, that most of apples faqs are "true or are really the best-way-to-do".

Thanks for reading tho!

 

[doogm]

Same goes for work ; it's more "clever" to place it on charge if you don't use your phone for 4,5,6 hours or let it discharge 10-15% in that time? This adds add up nearly 30 cycles.

I don't follow you. How does that add up to nearly 30 cycles? A charging cycle is when cumulative charge equals 100%, whether you charge 10% ten times or 50% two times (or 60% once and 40% the second time.)

To make it tl;dr: It's more strain keeping it at arround 80% , even using it on cord or loading it the whole night, even if you don't need it really OR lose cycle counts over and over through idling. I guess this rounds up with the question "HOW good is the intellegint charging that holds 80% charge over prolonged time?"

From my experience, I kept my 15 Pro at 80% charge limit for the first year. Compared with my previous 13 Pro, which used optimized overnight charging (charge to 80% and hold and then charge to full to just before you normally take the phone off the charger), the 15 Pro's battery health was worse after 12 months than the 13 Pro's was. For the next 6 months I changed the charge limit to 85%, and the battery health after 18 months is much worse than the 13 Pro's was.

I know, different phones, but I think the 80% charge limit did not help my phone maintain battery heath, so from now on I will just used optimized charging.

 

[eScenCe]

Let's say you idle your phone on a busy work day for 5-6 hours with something between 10% - 15 % on rougly 220 working days a year. That's 2.600 - 3.300 % battery "lost", which equals to ~26 - 33 full 100% cycles.
Add this to 5-6% degree over night and you lose 40 - 60 cycles a year with doing nothing on the phone.
Constantly stay at 80% whenever you can might do less harm / strain than those.

ofc ofc .. this is just pure theoretically nonsense .. like night cap 80% , optimzed or not, loading wireless'ly or not ... in the end, the battery will degree. If it's 5,10 or 15% after two years .. actually doesn't matter that much. If it's done, we replace it.

But I found this argument with friends kinda interesting and there is really nothing to be found on the internet - which usually houses all stuff of weird experiements and **** :'D

 

[digitalcuriosity]

Actually, I guess in the long run, it will make absolutly no difference.
But we had some nice conversation here ... and as always, so many wrong myths and old facts brought to the table, that I at least thinking about this one:


Newer iPhone, 80% Charge Limit at night. Check.
Assuming you keep your phone on and only use DND, you have battery drain arround 3-6% at night.
Now: Charge every night (!) no matter what from (50 to 80, 75 to 80...) and let the intelligence keep your phone at 80% over night...
OR
don't. Until you are arround 20% ... and charge than.


In Scenario 1, you would have each night a little strain on the battery, but zero to none Cycles. This is especially interesting, if you just top it for the 3-5% DND night discharge, which adds up to about 20 Cycles a year.
In Scenario 2, you would have far more cycles, but less strain.

Same goes for work ; it's more "clever" to place it on charge if you don't use your phone for 4,5,6 hours or let it discharge 10-15% in that time? This adds add up nearly 30 cycles.

I know, we going into Mythbusters here ... or not? Maybe some ultra - technical weblog already looked into this?
If this is all pure assumption, let me at least know, if you top to 80% (or 100%) night or prefer only to charge every 1-2 days.

Thanks, be nice. I know, this is a very flavored topic to some. I for myself, am Team 80% each night.

To make it tl;dr: It's more strain keeping it at arround 80% , even using it on cord or loading it the whole night, even if you don't need it really OR lose cycle counts over and over through idling. I guess this rounds up with the question "HOW good is the intellegint charging that holds 80% charge over prolonged time?"

I had some connection problems with my iPhone 15Pro while talking with the support Tech. I was told not to keep charging my phone and to let it run down, this had nothing to do with the connection item. But i had been charging it to 100% at night when it was just at 80%.