Hello all from sunny Greece,
My MBP M2 with just 24 cycles on the battery has issues with the battery. It doesnt last at all. For 10' on MS Excel, from 100 battery drives me on 94. Battery health is on 91% (in just 9 moooonths????) and the optimization 80-20 never worked for me. I sent my mbp on our local service and the report was that everything works like a charm. ****...!
Any ideas my friends?
Most likely you have a software issue. Software issues are the main cause of a battery draining quickly....especially for a newer battery. Run the third party app EtreCheck and post the report here so we can examine it for clues.
Sometimes a simple reboot can help with performance issues. If that does not work, then try another reboot but uncheck "Reopen windows when logging in" option in the prompt when rebooting. Sometimes all the apps need to be restarted after being completely closed out.
Make sure to disconnect all external devices in case one of them is causing a problem.
Many times cloud file syncing services are the cause of batteries draining. iCloud, One Drive, DropBox, etc.
As for the Battery Health and Battery Maximum Capacity, see this explanation of the Battery's Maximum Capacity value:
Keep in mind Apple only just recently showed the Battery Maximum Capacity in macOS so people have never seen how the Lithium Batteries degrade over time. In fact, the Maximum Capacity can fluctuate up & down. For example....a battery with a Full Charge Capacity of 4,315 mAh (battery for MBPro 13" 2017). A 200mAh fluctuation results in a fluctuation of 5%. A 200 mAh fluctuation is not unusual for an Apple Lithium Battery. I only begin to worry about the battery once the fluctuations get to 400 - 500 mAh.
Design Capacity = 4,315 mAh = 100%
Full Charge Capacity = 4,115 mAh = 95%
Before Apple exposed the Battery Maximum Capacity value, the only people who may even have noticed were the users utilizing a third party app such as Coconut Battery to monitor their batteries health.
Unfortunately even most Apple techs are not aware of these specific details. I only discovered it when I analyzed my organization's Apple laptops when people were complaining of battery related issues, but macOS showed the Battery Condition as Normal and the Apple Diagnostics reported no issues either. Apple only cares about when macOS shows the Battery Condition is "Service Recommended", or when the Battery Cycle Count is over 1,000 cycles, or the Apple Diagnostics report a battery failure.
You can take the laptop to an Apple Store to be examined, but they won't do anything unless one of those conditions I mentioned are met.
My recommendation to everyone is to ignore the battery information until the battery no longer performs to your expectations to see if it merits a replacement. Some people may be happy with the battery performance even when the Battery Maximum Capacity is below 80%....it all depends on a user's workload & expectations.
Most likely you have a software issue. Software issues are the main cause of a battery draining quickly....especially for a newer battery. Run the third party app EtreCheck and post the report here so we can examine it for clues.
Sometimes a simple reboot can help with performance issues. If that does not work, then try another reboot but uncheck "Reopen windows when logging in" option in the prompt when rebooting. Sometimes all the apps need to be restarted after being completely closed out.
Make sure to disconnect all external devices in case one of them is causing a problem.
Many times cloud file syncing services are the cause of batteries draining. iCloud, One Drive, DropBox, etc.
As for the Battery Health and Battery Maximum Capacity, see this explanation of the Battery's Maximum Capacity value:
Keep in mind Apple only just recently showed the Battery Maximum Capacity in macOS so people have never seen how the Lithium Batteries degrade over time. In fact, the Maximum Capacity can fluctuate up & down. For example....a battery with a Full Charge Capacity of 4,315 mAh (battery for MBPro 13" 2017). A 200mAh fluctuation results in a fluctuation of 5%. A 200 mAh fluctuation is not unusual for an Apple Lithium Battery. I only begin to worry about the battery once the fluctuations get to 400 - 500 mAh.
Design Capacity = 4,315 mAh = 100%
Full Charge Capacity = 4,115 mAh = 95%
Before Apple exposed the Battery Maximum Capacity value, the only people who may even have noticed were the users utilizing a third party app such as Coconut Battery to monitor their batteries health.
Unfortunately even most Apple techs are not aware of these specific details. I only discovered it when I analyzed my organization's Apple laptops when people were complaining of battery related issues, but macOS showed the Battery Condition as Normal and the Apple Diagnostics reported no issues either. Apple only cares about when macOS shows the Battery Condition is "Service Recommended", or when the Battery Cycle Count is over 1,000 cycles, or the Apple Diagnostics report a battery failure.
You can take the laptop to an Apple Store to be examined, but they won't do anything unless one of those conditions I mentioned are met.
My recommendation to everyone is to ignore the battery information until the battery no longer performs to your expectations to see if it merits a replacement. Some people may be happy with the battery performance even when the Battery Maximum Capacity is below 80%....it all depends on a user's workload & expectations.
Most likely the problem is due to a third party app, or some cloud service, or some sort of configuration issue. Please provide an EtreCheck report as I previously suggested so we can examine it for possible clues. Apple does not really look at third party software issues....Apple's remedy & test is to perform a clean install of macOS to see if the issue still occurs. A clean install is when the disk is erased followed by a reinstall of macOS, but testing is performed on the clean install prior to installing any third party apps, and before restoring from a backup since you may just be brining the problem back. Also, avoid signing into your AppleID or iCloud during the testing since that can easily cause the laptop to use power with any file syncing of your iCloud data (Contacts, Messages, files, etc.).
Maybe some Apple Authorized Service Providers will actually look into software & configuration issues, but you will need to give them access to your macOS user account which is not really a good idea (especially do not give them your password). Ideally the tech should be investigating software & configurations with you watching them so you can be sure they are not viewing or copying any personal files on the device.
Most battery draining issues will be due to software issues (usually third party), or cloud based services (iCloud, One Drive, DropBox, etc.), or a configuration issue. Also make sure to disconnect all external devices in case one of them is causing a problem.
While a failing battery is a possibility, it is probably unlikely here for a laptop only about a year or so old. Please post the EtreCheck report so we can examine it for clues so we can assist you in resolving the battery drain issue.
Its quite strange to have a new silicon MacBook with a battery that had gone down to 91% with just 24 cycles. I say that because, mine is made in April 2019, a 2018 intel MBP, which has practically 92% with 216 cycles. Anyway, Sonoma 14.1.2 update is just came by, why not update to it and see, if that problem would go away. Otherwise, better show it to a technical service.
The idea of guarantee/warranty is not that the "official" service does some tests and give/send it back unresolved. You officially give it (send it) to the service/shop under guarantee. You get a receipt on that. If/when the service sends it (give it) back without repair, the service takes the responsibility on that. It is their responsibility to repair or replace the malfunctioning part(s) or the whole device under guarantee, at least in the country, where I live.
It is always good to read the consumer protection laws of your country. Earlier times, we got a whole lot of guarantee papers with a device, not anymore, just the payment receipt is enough. The rest is guaranteed by the country's laws. It is not the goodwill of the company that sells anything for you to get a guarantee, it is a legal binding.
tomsavo Said:
"Problem with battery on my MBP M2: Hello all from sunny Greece, My MBP M2 with just 24 cycles on the battery has issues with the battery. It doesnt last at all. For 10' on MS Excel, from 100 battery drives me on 94. Battery health is on 91% (in just 9 moooonths????) and the optimization 80-20 never worked for me. I sent my mbp on our local service and the report was that everything works like a charm. ****...! Any ideas my friends?"
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No. I have not had this happen. Refer to these tips:
Troubleshooting MacBook Air Power:
A. Black Mac Screen:
Go Here: If your Mac doesn't Turn On or Start Up - Apple Support
Using External Devices: Try Resetting the SMC and NVRAM, but this time, using an external keyboard. Connect an external monitor and see if you get an output.
B. Mac Power Issues:
Try a New Charger:
If it is currently charging from a charger, then use a new charger:
A Few Links to Refer to Power:
@chdsl i just got my mbp from the local official service and the laptop passed all the tests (these diagnostic tests i think are silly). Had many times issues that couldnt find them on their tests and in the end the problems existed. Anyway... Hope will find a solution directly from Apple.
Hello there,
After taking back my mbp from the "service" of the official reseller, i restored back from time machine (cause i formated before getting it to service.). In 30' of browsing, mails and pdf checking (some business, order files) my battery run from 99 to 87. Just in 30'. I already contacted directly to Apple and seems that are there to help and solve my problem and not to jump it. They will call me back on Wednesday to give them my feedback after the "service" and find a solution for my problem.
Hope will go fine...! Thank you all guys!
Hello HWTech. Thank you very much for your suggestions. There is another issue that exists. The optimization of the battery 20% - 80% never worked.
Below the report:
Problem with battery on my MBP M2
