iOS 13.2.3 battery drain

The battery drain has gone from bad to worse on my iPhone 6S ever since iOS 13.1.2 was introduced. With iOS 13.2.3 the battery has drained from 100% to 1% in 2 hours without the phone being used at all. If I turn off the phone when the battery is at 100% and then turn it back on, the phone will flash the low battery warning and then go dead. Once I plug it into an electrical outlet, the phone will show that it is charged 100%. The same thing happens if I reboot by pressing the home and power buttons simultaneously. These iOS updates are destroying the battery. It was at 96% capacity when the problems started. In one day it dropped to 95% and then a couple hours later to 94%. I have gone to the Apple store and called telephone support. The employees act like I am the only one with battery issues. The employee at the Apple store told me to recalibrate the battery by letting it discharge completely before recharging. If that didn’t work, then restore the phone. If that didn’t work, then buy a new battery. If that didn’t work, then buy a new phone. Seriously? Is this the advice Apple is training its employees to give?

The Lithium Ion Battery in the iPhone can be damaged from heat or cold. After some time the battery can lose its ability to hold the max amount of charge. You can schedule a battery replacement at this website: https://support.apple.com/iphone/repair/service/battery-power.

Seems to be a battery monitoring/reporting issue. SE updated to 13.2.3, and now battery will hold at, say, 80% for a couple hours, then suddenly drop to 50% in a matter of minutes, even if not being used, then hold there for an hour or so, then drop to something like 13%.

Also, just had this happen on iPad Air 2 running 13.2.3:

• 18% battery life (usually an hour or so of use), tapped on something in Safari - black screen, spinning indicator, shutdown
• Power up with sleep button, enter passcode, tap OK - black screen, spinning indicator, shutdown
• Power up, get low battery + plug in screen - from 18% to critically low virtually instantaneously!
• Plug in charger, iPad powers up on its own, enter passcode, and gee, 17% battery life

It's not the batteries, it's not the age of the device, it's a major battery monitoring bug, plain and simple, and as such, can be fixed and very much needs to be.

Here’s an example of the severe battery drain on SE. The phone was not in use during this time. There are no apps open, screen brightness is set to about ¼, background refresh is off, battery health is 98%. Is there any way to go back to the previous iOS. I didn’t have issues with that one.

Same for an iPhone 7. I tried 13.2.3 and now 13.3. Hard reset. Battery percentage doesn’t show the actual charge level. My telephone spent five hours yesterday at 1%. Good to know but useless because at some point it’ll shutdown. What I cannot explain is why the percentage doesn’t reach 0.

telephone also shows battery degradation, which I don’t trust. It was at 84% before updates.

Apple guys, the problem is here. A solution doesn’t appear hard to find.

I have the same issue with my 6s. But I notice that then the battery low down to 1%, the battery could still be used for couple hours. I did this twice time, one time I left my phone 1% battery discharged for all night long, the next day morning it still alive, and I even used some apps, and it still functioned well. The second time was last day, I charged the battery to 100%, and I discharged it and then opened some apps and keep them working, the battery drained so fast, and it does down to 1% in 2 hours, and I continued to keep the apps work, it appeared that 1% battery can be last for 2 hours with apps functioning.

So I wondered the reason of the issue is the inaccurate calculation of the battery percentage

And I try something like this, updated the version to 13.3, used the battery to automatically shut down, then charge it to 100%, it seems helped, the calculation of the battery percentage back to normal. But I don't know if it help every iphone with the same issue, and don't know which step of those worked for my iphone, you guys can try this, it might help

I was thinking the same thing! I update to 13.2.3 yesterday, today at work I took my phone off the charger. I left work at 5 and it’s now 5:57 and I literally have 83% down from 100%. In the pat I would still be be in the 90% at the time, something is definitely up!

Anyone else having the same issue?

Same here, iPhone was charged all night, 100%, took the phone out and boom it’s shout down, plug it again and was 100%... took it out and again shout down, was on10%... charged again and same happened, it’s like counting down from 100 each second it’s going down

I totally support what you are saying ,I spent 90 mins on the phone yesterday to a person and then a manager in cork, and at the end of the call I gave up as they just said the diagnostics say it’s your battery we don’t have any issues with our software. This is not support it’s just rubbish. I said if it no better with a new battery would the refund me the cost they said no get a new phone.

Battery drain problem still there on my iPhone 7 too. Also runs hot a lot of the time. Unit is 1 year old (they gave me a new one at the Apple store when they couldn’t fix my old one) so definitely nothing to do with battery health of the device itself.

I don’t think it’s a battery degrading issue. My iPhone X was perfectly on until I updated to iOS 13.2.3. What ever they implemented into this update is draining the battery faster than it should. I recalled that the previous update there were complaint about apps being force closed. This time around whatever was done to solve that issue is causing things to run longer and drain.

I never had an issue with any of the iOS 13 releases until 13.2.3.

We don’t all want a phone the size of a slab of concrete, I am a runner and the se fits into my running belt and talks to the Apple Watch when out running. Apple needs to put this new tech in a reasonable size phone, say se 2 and at a reasonable price. These thing can run a space ship know but most people just play games on them which is a shame. Anyway the phone is beginning to recover last night it held a charge and again today. Hum what’s Apple up to I ask. Had this before was told to get new battery did not and it recovered in a couple of days. ASI say hum what’s apple up too.

Can confirm the same issue here on 13.2.3 on my iPhone 11 Pro. Battery health is 100% and I was until recently impressed with the battery life on my device. I could sometimes use it for two days without charging. Now it won't last for a whole day, I have to charge it when I get home from work in the afternoon/evening. The battery level graph in system settings show a rather linear decrease in level even though activity is not linear. Looks like it consumes the same amount of battery no matter if it's locked and put away as when I use it actively.