Battery health dropped 100 to 98 on beta 3

[symphony]

That is generally how these drops appear, at one point you check the battery health and it's down from what it was before, often enough it's after an update that something like that gets noticed. In that sense it's pretty much always sudden.

None of that is really in question, it's more about getting more details about the "substantial difference" that the OP mentioned noticing. Again, seems like something for the OP to reply to.

“Battery health dropped 100 to 98 on beta 3”

beta 3 came out on Tuesday. 2% is a big drop than just 1%. If he saw that his battery health was 100% on Tuesday (not a full week yet) and noticed recently that it dropped by 2%, then that’s a significant drop in a short amount of time.

My battery health has never dropped from an update, let alone by 2%, I don’t understand how that can happen?

 

[BigMcGuire]

Never thought so many posts could be formulated on a statement like this one.

I do not understand how the OP's post would result in such driven debate over what was said. lol.

Like C DM said - most of the battery health drops that I've noticed from forum users happen after an OS update. Having observed coconutBattery extensively on all of my Apple devices for many years (a hobby of mine) - one's capacity can vary quite a bit depending on load and state of charge. I usually record capacity (vs design capacity) at a 100% fully charged state. But the capacity can drop quite a bit when at, say 50% charge, and under significant load.

I've also noticed that in the latest Mac OS / iPad OS / iOS versions, that battery capacity has started to vary significantly after being pretty "solid" over the last 5 years. Apple is definitely doing something different here with the capacity reading of their batteries - which, seems like, in beta, ticks off the battery health meter.

 

[C DM]

“Battery health dropped 100 to 98 on beta 3”

beta 3 came out on Tuesday. 2% is a big drop than just 1%. If he saw that his battery health was 100% on Tuesday (not a full week yet) and noticed recently that it dropped by 2%, then that’s a significant drop in a short amount of time.

My battery health has never dropped from an update, let alone by 2%, I don’t understand how that can happen?

It happens. These are estimates, and just because they are noticed after updates or something like that, on its own, it doesn't necessarily mean that the update caused something as much as just an updated reading was obtained that resulted in a somewhat different percentage. As mentioned in a few different posts these drops of even a few percent are not that unusual and generally not much to worry about on their own, in particular when they are happening in the higher percentages (above 90% or so).

That said, that's still somewhat separate from the OP already seeing a "substantial difference" (in something) supposedly in relation to that 2% drop in battery health.

 

[dannyyankou]

Assuming you bought your phone in September, odds are you didn’t really have 100% capacity. I’m thinking if anything, it’s a more accurate estimate now.

 

[zorinlynx]

“Battery health dropped 100 to 98 on beta 3”

beta 3 came out on Tuesday. 2% is a big drop than just 1%. If he saw that his battery health was 100% on Tuesday (not a full week yet) and noticed recently that it dropped by 2%, then that’s a significant drop in a short amount of time.

My battery health has never dropped from an update, let alone by 2%, I don’t understand how that can happen?

By the way, the system doesn't measure battery health every day. It takes a significant amount of charging and discharging over time to even measure it. So saying that it dropped 2% since Tuesday probably really means that it dropped to 99% back in January and to 98% since then and the measuring finally determined that.

You need multiple deep cycles to measure this stuff. Many of us are mostly at home and not far from a charger due to the pandemic. Some people plug it in or put it on a Qi pad all day. Battery health measurements aren't going to be accurate when those situations are long term.

 

[thinkadam]

Wow. OP here and I can’t believe the debate on semantics.
I clearly meant battery life. Not performance.
i know it was only a 2 percent drop but my battery always awesome. Now I’m noticing I’m at 30% by late afternoon.
usually never crosses 60. Similar usage.
That’s it.

 

[C DM]

Wow. OP here and I can’t believe the debate on semantics.
I clearly meant battery life. Not performance.
i know it was only a 2 percent drop but my battery always awesome. Now I’m noticing I’m at 30% by late afternoon.
usually never crosses 60. Similar usage.
That’s it.

That's somewhat odd. A 2% change, especially in the upper ranges, shouldn't really have much of a noticeable impact. Perhaps it's more along the lines of the betas behaving somewhat differently in terms of battery usage in one way or another?

 

[oMc]

My battery health also dropped to 99% last week one day after the update and I just noticed that it is at 98% today. I'm ready to file a lawsuit against Apple with OP.

More seriously, I have an iPhone 8+ from 2017, I changed the battery during summer 2019 so I think it is perfectly normal for the battery to start degrading slowly after roughly one year of intensive usage. Moreover I live in Finland where devices can be exposed to extreme temperature in winter.

 

[BigDO]

I found the battery health to be quite accurate, if considering the 80% = 500 charge cycles.

I have also noticed that the battery health often changes after OS updates (minor and major).

 

[thinkadam]

Fwiw I only started this post as I assumed it was a beta issue and not to be a battery complainer. I wanted to see if others in the group noticed a difference on beta 3.

 

[robertk328]

That's somewhat odd. A 2% change, especially in the upper ranges, shouldn't really have much of a noticeable impact. Perhaps it's more along the lines of the betas behaving somewhat differently in terms of battery usage in one way or another?

I chalk it up to the beta changes, not an estimated battery health number. We've had it before where updates have caused issues with no change in battery health. Probably bounces back in another update.

 

[boylerman]

I just checked my battery health on my iPhone 11 Pro, and it is also at 98%. It was at 100% prior to the Beta 3 update.

 

[gwhizkids]

On a 11 pro. My 100 battery health suddenly went to 98.
I see a substantial difference already.

anyone else?

You see a substantial difference? Really? How?

 

[C DM]

You see a substantial difference? Really? How?

I believe the following was added by the OP in relation to that in an earlier reply:

Wow. OP here and I can’t believe the debate on semantics.
I clearly meant battery life. Not performance.
i know it was only a 2 percent drop but my battery always awesome. Now I’m noticing I’m at 30% by late afternoon.
usually never crosses 60. Similar usage.
That’s it.

 

[gwhizkids]

Wow. OP here and I can’t believe the debate on semantics.
I clearly meant battery life. Not performance.
i know it was only a 2 percent drop but my battery always awesome. Now I’m noticing I’m at 30% by late afternoon.
usually never crosses 60. Similar usage.
That’s it.

You're also running a beta. It happens. And it happens differently to different users.
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I believe the following was added by the OP in relation to that in an earlier reply:

Yeah, this was one of those threads that should probably be read through in its entirety before wading in. I see one poster is suspended and another is "canceled" (a term I've never seen here before; sounds ominous).

I'm going to quietly leave room and head elsewhere. 😄

 

[inkahauts]

Wow. OP here and I can’t believe the debate on semantics.
I clearly meant battery life. Not performance.
i know it was only a 2 percent drop but my battery always awesome. Now I’m noticing I’m at 30% by late afternoon.
usually never crosses 60. Similar usage.
That’s it.

While I can see one wanting to make the correlation between the 2% and the drop into 30s vs 60s... I suspect the large battery usage during the day is not the result of the 2% less in battery health. Probably beta stuff going on eating your battery each day. I’d double check what it says is using your battery during the day and what’s using your location. Maybe even turn location off for a day and see if that has an affect.

It wouldn’t shock me if there’s a WiFi issue or an app having an issue and running out of hand in the background.

 

[Donnation]

There's no chance you are seeing a difference in your battery with a 3% drop. Its not the battery, its the beta. a 3% drop won't do a single noticeable thing to battery life and that's a fact.