So they can come from the factory with a larger battery capacity than the rated 4323mah max?
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iPhone 14 Pro Max iPhone 14 Pro Max Battery Health (After a Year)
- Thread starter inthequantum
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In another month I’m down to 88% (from 90%). This is getting ridiculous. My iPhone 14 Pro Max is just 1 year old and the battery health is 88%. Never happened before.
I didn’t change my habits, so definitely something is wrong with the battery
I have 214 cycles in one year
I didn’t change my habits, so definitely something is wrong with the battery
I have 214 cycles in one year
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Why do you hope that ?
I’m quite disappointed about that…
Because the sooner it gets to 80% the sooner I can get a replacement!
And as predicted it’s down to 86%.
Because the sooner it gets to 80% the sooner I can get a replacement!
And as predicted it’s down to 86%.
You can get a replacement only if you have less than 500 cycles by then.
I would bet it will decrease and stop around 82% until the warranty is gone…Because the sooner it gets to 80% the sooner I can get a replacement!
And as predicted it’s down to 86%.
The degradation is not linear or probably even a nicely predictable curve in most instances.
See this thread — @akash.nu you should take a look as well:
An iPhone battery can last much more than 1000 cycles!!!
Hi guys, I want to show you that it is indeed possible that the battery can last much more than the 500 cycles, which are specified by Apple. I bought my iPhone Xs on September 2018 and it has the first battery up to this day. On the attached screenshot of the Mac app "coconutBattery" you can...
forums.macrumors.com
TLDR: Beyond the original post, read replies #32 and #56.
Yep! Aware of this but in my case it seems to be pretty predictable with a percent drop every couple of weeks at present.
See this thread — @akash.nu you should take a look as well:
An iPhone battery can last much more than 1000 cycles!!!
Hi guys, I want to show you that it is indeed possible that the battery can last much more than the 500 cycles, which are specified by Apple. I bought my iPhone Xs on September 2018 and it has the first battery up to this day. On the attached screenshot of the Mac app "coconutBattery" you can...
TLDR: Beyond the original post, read replies #32 and #56.
Thanks. Will take a look and check on coconut battery again.
But [mention]Efficiency-King [/mention] mentioned that the battery was calibrated. How do you do that with lithium ion batteries?! What am I missing here? Nickel batteries needed calibration but we’ve moved past that decades ago.
Just for context, my coconut battery reading is this -
And coconut battery aligns with the iOS battery stats.
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The “memory effect” on Ni batteries is different than calibration. Although:
Memory effect now also found in lithium-ion batteries
Lithium-ion batteries are high performance energy storage devices used in many commercial electronic appliances. Certainly, they can store a large amount of energy in a relatively small volume. They have also previously been widely believed to exhibit no memory effect. That's how experts call a...
A simplistic explanation from Battery University:
To maintain accuracy, a smart battery should periodically be calibrated by running the pack down in the device until “Low Battery” appears and then apply a recharge. The full discharge sets the discharge flag and the full charge establishes the charge flag. A linear line forms between these two anchor points that allow SoC estimation. In time, this line gets blurred again and the battery requires recalibration. Figure 2 illustrates the full-discharge and full-charge flags.
![Figure-2_full-discharge-and-full-charge-flag.jpg]( "Figure-2_full-discharge-and-full-charge-flag.jpg")
For the most part, it’s the capacity that changes (i.e., full charge). So...
Apple said:
That doesn’t mean occasionally running a device until auto-shutdown (i.e., ‘full’ discharge*) isn’t helpful to preserve the battery gauge because as a battery weakens (e.g., ages), the lowest voltage also changes. At some point the battery’s lowest voltage may not be the system’s minimal operating voltage. It’s just that the low end doesn’t typically change nearly as quickly as the top-end.
* Apple leaves margins to both the top and bottom of the charge state. In other words, 1% reported to the users is probably more like 16% of actual battery capacity. This is part to help prevent deep discharging and to provide temporarily extended functionality for Find My.
Hi all, I'm new here. I have a 14 PM from september 2023, right now with 99% bat health. When I have passed the 3uTools tells me that the manufacturer is DESAY, manufactured on 06/11/23 (I understand that being American date is read as June 11 no, in Europe would be November 6?), 100 charge cycles (with the shortcut batteryStatus says 97). With this battery shortcut if I choose the "analytics" with the most current date it tells me that I have 707 battery cycles, if I choose the "analytics" field with the oldest date (about 6 days ago) it tells me 97 cycles. I also see a lot of shortcuts referring to the "log-agregated" field which I have never located in my analytics section. I'm on 17.3.1
Design capacity 4297 (4323 as standard it should have) and current capacity 4241. It strikes me that the bat was manufactured in June 2023, 2 months or so from the start of production of the 15. I would like to think (hopefully) that this battery manufactured later, almost at the end of life of the product corrects the "supposed" degradation problems of the 14PM. I always charge it with original 5w charger + usb A to lightning cable from an old IP6 I keep and always from 20-30 to 80% via shortcut that alerts me. The only thing that worries me a bit is how old the lightning cable is.... What do you think of these stats? Thanks
Design capacity 4297 (4323 as standard it should have) and current capacity 4241. It strikes me that the bat was manufactured in June 2023, 2 months or so from the start of production of the 15. I would like to think (hopefully) that this battery manufactured later, almost at the end of life of the product corrects the "supposed" degradation problems of the 14PM. I always charge it with original 5w charger + usb A to lightning cable from an old IP6 I keep and always from 20-30 to 80% via shortcut that alerts me. The only thing that worries me a bit is how old the lightning cable is.... What do you think of these stats? Thanks
Just reached 1 y with a 14PM as a daily driver, battery health is 95%. Not a super heavy user but definitely over average, mainly charged on a MagSafe stand. I would say the health is reasonable, not to complain about really.
Stuck at 90% for 3 months and dropped to 89% after 17.4 and currently 302 cycles. 11/22 purchase. Not losing any sleep over it as it covers my long days without needing to be charged at all. Will be interesting to see if it can muster a few years without replacement required. Went 4.5 years with iPhone X and never changed the battery. Ended life with it at 82%. Doubt this will fare as well but let’s see.
