It would be interesting to know if it’s making a difference & how many people using the 80% charge limit have seen their battery health falling?
Screen time is only 30% of the equation.I’m a battery/efficiency hobbyist (side hobby of UL backpacking), and keep my phones ~6yrs as primary, another ~4yrs as secondary (mp3 players/music streamers), on original batteries. Most folks don’t keep their phones long enough to see the benefits of batt mgt. I personally wouldn’t use any of the Apple’s battery ‘optimization’ features - they’re too dumbed down to capture the best low-hanging-fruit.
Here’s my 4.6yo (Aug ‘19) XR (so far), running an automate custom charge optimization (smartplug + shortcut automation), so it’s just one plug-in/day and forget about it. For me, batt mgt is less time/hassle/cost than an Apple battery swap and Apple stores are nearby.
Notes: I have an unusually efficient usage pattern: efficient apps, mostly wifi, tuned settings. It’s an ‘only-device’ so estimate a life-to-date average daily usage of ~7hrsSOT/50%batt (more during pandemic, less post pandemic), which works out to ~800something cycles. My phone sees less than 10% far more often than over 85%. Started w/ ~65-15% cycling (enough to get me through a full day), but have slowly increasing peak charge as batt ages and capacity is lost - perhaps I’ll need a full 100% charge by year 7? to get me through a 8hrSOT day. I actually like the runtime limit - consider it my self-imposed ‘parental control’ feature.
I reckon Screen-on time is the most important factor, though. If the phone is unable to provide adequate SOT, then it’s no longer that useful.Screen time is only 30% of the equation.
Could you post your app usage times since that's the bigger factor in battery drain? Also, what iOS version are you on?
It is a useful metric but the app used and how optimized it is affects it more. That's why you can manage to watch movies (streamed) for hours on end and it barely drains the battery but with Facebook you can't even manage half that. More obvious on ProMotion displays.I reckon Screen-on time is the most important factor, though. If the phone is unable to provide adequate SOT, then it’s no longer that useful.
I have a 5c whose standby and music runtime is amazing, but use it with the screen on and it falls apart. It’s not that useful.
The app and type of content is indeed significant, although, there is another problem, screen on time is simply duration, not related to a battery cycle.I reckon Screen-on time is the most important factor, though. If the phone is unable to provide adequate SOT, then it’s no longer that useful.
I have a 5c whose standby and music runtime is amazing, but use it with the screen on and it falls apart. It’s not that useful.
It is a useful metric but the app used and how optimized it is affects it more. That's why you can manage to watch movies (streamed) for hours on end and it barely drains the battery but with Facebook you can't even manage half that. More obvious on ProMotion displays.
Where did you find the stats on the first picture? Is it a new feature in iOS 17.5 beta or an app?15 Pro on iOS 17.5 beta and 80% charge limit. There’s been some drops in the battery real stats from analytics.
View attachment 2366303
Still on 100% in the battery settings menu.
View attachment 2366304
Where did you find the stats on the first picture? Is it a new feature in iOS 17.5 beta or an app?
It is a useful metric but the app used and how optimized it is affects it more. That's why you can manage to watch movies (streamed) for hours on end and it barely drains the battery but with Facebook you can't even manage half that. More obvious on ProMotion displays.
Well, yes, of course that the whole combo counts: apps used, settings (especially brightness level and whether it’s Wi-Fi or Cellular), but I meant that for the user, it’s pretty much the only aspect that matters (keeping into account all of these factors).The app and type of content is indeed significant, although, there is another problem, screen on time is simply duration, not related to a battery cycle.
For example: The most recent charge cycle of my sixth generation iPad was ~8 hours and 10 minutes, 4 hours and 40 minutes of usability (i.e., 100% charge to auto shut-off). However, as you can see, the screen on time is reported as just over 7 hours, because the logged time is for the past 24 hours not since last charge.
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Your device’s battery was probably at or much nearer to design capacity.what could be the reason I only have 99% battery health with only 66 cycles? The majority of people here have 100% battery health and many more cycles than me.
The battery is seemingly below average. Of course, iPads don’t have the overall battery health calculation/algotrium like other Apple devices — at least nowhere the user can access. Anyway, as of that screenshot, the battery is at 857 cycles with a calculated 44% of original capacity (via analytics log).That iPad result looks pretty low to me, but I don’t know those apps, so I don’t know whether they’re heavy or not.
I don’t think the MaximumFCC is relevant really, what’s the health against Apple’s design capacity?The battery is seemingly below average. Of course, iPads don’t have the overall battery health calculation/algotrium like other Apple devices — at least nowhere the user can access. Anyway, as of that screenshot, the battery is at 857 cycles with a calculated 44% of original capacity (via analytics log).
iPhone 14 Pro Max Battery Health (After a Year)
Battery degradation is not linear; the capacity will drop a little quicker at first, then the endurance will level off (for the most part), and finish with a nosedive. Here’s a fair representation of capacity to usage...forums.macrumors.com
On one hand, the endurance is nowhere near the "Your [iPad] battery is designed to retain up to 80% of its original capacity at 1000 complete charge cycles.” On the other hand, it lasted 3.5 years before dropping below 80% capacity — and as you can see I’m still getting a little more life from it.
The design capacity is 8827 mAh.I don’t think the MaximumFCC is relevant really, what’s the health against Apple’s design capacity?
"Count":1980,"last_value_AppleRawMaxCapacity":3898,"last_value_AverageTemperature":24,"last_value_BatteryHealthMetric":null,"last_value_BatterySerialChanged":false,"last_value_ChemID":12641,"last_value_ChemicalWeightedRa":0,"last_value_CycleCount":857,"last_value_CycleCountLastQmax":3,"last_value_DailyMaxSoc":null,"last_value_DailyMinSoc":null,"last_value_GasGaugeFirmwareVersion":789,"last_value_HighAvgCurrentLastRun":-9413,"last_value_MaximumCapacityPercent":null,"last_value_MaximumChargeCurrent":2469,"last_value_MaximumDeltaVoltage":78,"last_value_MaximumDischargeCurrent":-4278,"last_value_MaximumFCC":8814,"last_value_MaximumOverChargedCapacity":1726,"last_value_MaximumOverDischargedCapacity":-266,"last_value_MaximumPackVoltage":4290,"last_value_MaximumQmax":9366,"last_value_MaximumRa0_8":167,"last_value_MaximumRa8":null,"last_value_MaximumTemperature":420,"last_value_MinimumDeltaVoltage":1,"last_value_MinimumFCC":2628,"last_value_MinimumPackVoltage":3348,"last_value_MinimumQmax":4779,"last_value_MinimumRa0_8":15,"last_value_MinimumRa8":null,"last_value_MinimumTemperature":-71,"last_value_NCCMax":null,"last_value_NCCMin":null,"last_value_NominalChargeCapacity":null,"last_value_OriginalBattery”:1
Oh, you meant the actual value then. Sorry, my bad. Thank you!The design capacity is 8827 mAh.
3898 / 8827 x 100 = ~44.16%
That iPad result looks pretty low to me, but I don’t know those apps, so I don’t know whether they’re heavy or not.
My bad as well… Tubi is a streaming video service/app, Dice is Dice with Buddies (a turn-based online game).Oh, you meant the actual value then. Sorry, my bad. Thank you!
Ouch! 15PM here, November 2023, with 110 cycles as well and my battery health is at 99% (optimised charging on and I have been running betas since day 1)- I'd definitely make an appointment at an Apple Store (I hope you have one nearby).Another 1% drop in battery health. 15 Pro Max with 110 cycles and now 96% battery health.
Yeah, games are heavy. That’s closer to a decent result, then!My bad as well… Tubi is a streaming video service/app, Dice is Dice with Buddies (a turn-based online game).
Anyway, if comparing:
- Up to 10 hours of surfing the web on Wi-Fi, watching video, or listening to music
iPad (6th generation) - Technical Specifications - Apple Support
support.apple.com
To the ~4 hours of both watching video and occasionally surfing the Web plus some gameplay with 44% of original battery capacity, that’s not bad.
Screen time is only 30% of the equation.
Could you post your app usage times since that's the bigger factor in battery drain? Also, what iOS version are you on?
This is pretty much the perfect reply.Apps are important, but I’d argue less so than internet connection (wifi, strong<>weak cellular), preferred brightness level, and even feature settings. All four also become even less relevant as the [extrapolated full batt] SOT approaches Apple’s ‘upto’ specs (16hrs for the XR). In other words, if a 13PM owner showed me a set of 28hr ‘upto’ spec (extrapolated) battery graphs at 2.5yo, then I immediately know that battery is in TOP shape, on wifi, using a low brightness, has turned off many power consuming background ‘features’, and is using the most efficient apps - doesn’t matter if the app is a movie player, book reader, crossword puzzle, or surfing the stripped-down Reddit/Tapatalk platforms (my top usage). In comparison, a 13PM owner posting a 9hr (extrapolated) Facebook SOT batt graphs at 2.5yo, has a theoretical 19hrs of lost SOT there - is it all due to FBapp inefficiency? how much is battery degradation? poor cell reception? high brightness? GPS pinging FindMy/AirTags in background? Apple Watch connection?…. IDK, achieving only 1/3 SOT spec leaves an awful lot of wiggle room within which to confuse usage efficiency issues with battery degradation issues.
I personally track my battery degradation by doing full rundown tests (100-50, then 50-0) under normal usage when brand new and when recalibrations are required, and then comparing how SOT is lost over time. So to address your specific questions, here’s a new & 3yo full rundown w/apps. Then dividing AppMins by App% is an excellent objective measurement to rank relative App efficiency, here showing my #2app Safari as ~half as efficient as #1app Reddit/Apollo. But it really depends on what I’m doing with Safari - eg, here showing on skewed days it’s ~25% less efficient - ie, consuming 50% batt vs 40% batt.
Hope that helps.