Hi, I recently added iCloud sync capability to my app via NSPersistentCloudKitContainer. It does push data to the cloud, in other words seems to be working fine. However, I noticed a strong increase in battery drain and when I debug (release and debug build configs) I can see that a NSManagedObjectContext thread that is definitely not mine has 100% CPU load basically all the time. (I waited a few minutes, yes minutes, for it to finish while not using the app at all and it does not stop.) Component utilization shows that most the energy impact is CPU and "overhead" is very low (goes to 0 quickly). There is no network activity visible, so this seems to be some kind of background processing. Also, memory is very, very low (~ 35 MB). I am wondering if I am doing something wrong here or if there is a better practice. Some info about how my app works: It downloads things from the web and generates a lot of entities while doing so. It frequently saves changes (incremental changes in entities, there are lots of save() calls during a refresh). I have not had PersistantHistory enabled before changing my processes to work with iCloud (existing sqlite store). Not sure if anything else is relevant. Any help is appreciated. A bit of log: CoreData: CloudKit: CoreData+CloudKit: -[NSCloudKitMirroringDelegate _scheduleAutomatedExportWithLabel:activity:completionHandler:](2958): <NSCloudKitMirroringDelegate: 0x281d34680> - Beginning automated export - ExportActivity: <CKSchedulerActivity: 0x2805bf2f0; containerID=<CKContainerID: 0x282950510; containerIdentifier=iCloud.app.***, containerEnvironment="Sandbox">, identifier=com.apple.coredata.cloudkit.activity.export.368A54A8-5EA2-4177-B6DD-5404550042AD, priority=2, xpcActivityCriteriaOverrides={ Priority=Utility }> CoreData: CloudKit: CoreData+CloudKit: -[NSCloudKitMirroringDelegate executeMirroringRequest:error:](884): <NSCloudKitMirroringDelegate: 0x281d34680>: Asked to execute request: <NSCloudKitMirroringExportRequest: 0x28337ed40> 3052F013-BA85-4BB8-8935-74F829AACA4B CoreData: CloudKit: CoreData+CloudKit: -[NSCloudKitMirroringDelegate _scheduleAutomatedImportWithLabel:activity:completionHandler:](2922): <NSCloudKitMirroringDelegate: 0x281d34680> - Beginning automated import - ImportActivity - in response to activity: <CKSchedulerActivity: 0x28057a3f0; containerID=<CKContainerID: 0x282900300; containerIdentifier=iCloud.app.***, containerEnvironment="Sandbox">, identifier=com.apple.coredata.cloudkit.activity.import.368A54A8-5EA2-4177-B6DD-5404550042AD, priority=2, xpcActivityCriteriaOverrides={ Priority=Utility }> CoreData: CloudKit: CoreData+CloudKit: -[NSCloudKitMirroringDelegate executeMirroringRequest:error:](884): <NSCloudKitMirroringDelegate: 0x281d34680>: Asked to execute request: <NSCloudKitMirroringImportRequest: 0x2833664c0> 98E2628F-6AE5-43C0-BA9E-2B72707B31DC Profile of what that thread is doing (inverted):

Just wondering anyone else running macOS Monterey developer beta 2 or 3 is noticing excessive battery drain? I've filed feedback, FB9400649, regarding this. Tentatively believe this is due to Spotlight running away with the CPU: even while the lid is closed. Note that this M1 MacBook Air is not brand new, and Spotlight months ago built the initial index of the drive. Force-quitting Spotlight in Activity Monitor temporarily resets CPU usage, but after a couple of hours, it is back up to 130 to 180% of the CPU.

My battery health is 89% im wondering what is draining my battery? Is it the new iOS update? Or a app? So annoying 😫 your help & advice would be appreciated thanks 😊

I have problem with my iPhone X’s battery health after installation of IOS 15. Initially before installation it had 91% BH, but soon after installation of IOS 15 battery health dropped to 84%z And i have never experienced anything like that in my phone before. I need help is it normal or there is something behind ??.

After installing iOS 15, my iPhone battery has been just straight up worse. I am able to get only a minute of screen on time with every 1% of battery consumed. Moreover my phone is plagued with other bugs and random shut down.

Why is this update draining my battery so fast?

Also IOS 15 beta 5 still have big battery drain, 5% per h.. nothing new... When you repair this bug. I have Iphone XS. This is happened from 14.6.1. Regards Jani

Hi, i have updated iOS from 14.8 to 15. After that i am facing issues like so many apps are lagging. Those were working perfectly fine on the same day prior to update. IPhone storage is taking 3+ mins to load completely. Apple store is taking couple of secs to load. Iphone is getting extremely heat while using. Charging is also taking longer time. Chat with apple support team, as per their suggestion, updated iOS again using my pc. Still getting the same issue. They are also suggesting to do factory reset as well. Why would i do factory reset and restore again. Just downgrade it to iOS 14.8 again.

Hello everyone 👋 what is the best choice for charging battery MacBook Pro for the best battery life Thank you All

I bought my iPhone 12 in March 2021. I use both 5g and wifi for over 2 months. After I updated to IOS 14.5, I noticed that my battery health went from 100% to 95% in just 2-3 months. After that, I stopped using 5g and just used wifi. But it is still draining fast. I only use my phone for social media and use it for gaming sometimes. I also use Apple’s 20watt charger. I also don’t let my battery life go down to 25%. Now, my battery health is at 92% in just 5 months of using it. What exactly is the problem and how can I prevent my battery health from draining too fast? Is my battery defective?

after using my iPhone 12 pro max 8 to 9 months my battery health is 91%, in 1 month it drained 3% ! Although i watch a lot of videos of how to charge iphone nowadays and not to use it while on charger. also i went to Jarir Bookstore and apple approved store in Saudi Arabia, they checked my charging cycles and they were chocked that in 8 months i only charged my phone for 260 times.. please take my case into consideration.

When I upgrade to IOS 14.5.1 (iphone XS) pull my battery drain 15% in 3h. Than I install 14.6, 14.7 beta, but nothing new - 17% in 3h. Now I m in 15 beta 3 and still have battery drain 4% / h over day or night. Battery health 86%. Please, do something, because this it takes too long, please answer what to do, I try everything. Regard Jani

I bought my Iphone 11 pro max almost 1.5 yrs ago and till last june battery health drained from 100 to 97. But since June, it has dropped to 88. I usually try to keep my battery life at 40 to 80 and use fast charger that came with the device. But Battery has drained like 9% in the past 3 months which is quite worrisome for me.

No matter what I turn off to reduce battery drain, I can watch it go down fast. I usually have to keep the charger plugged in to use my IPad Air2.

I have a problem with an IPhone 12 Pro. before sleep i let the phone with 40% battery, and when i woke up it has 0% and it was closed. and in another night, it was happened the same but with 25% battery. the battery life its 100% and i dont understand why is happening this. Can someone Tell me?

In the last 7 months, my phone’s battery capacity was 83%, but suddenly it went down to 79% in 3 days. I updated to iOS 15 Public Beta 3 a few days ago. Is anything wrong? (iPhone XS) (Charging cycle 1003 times)