Questions tagged [battery]

Concerning devices that store electrical power which can be used to run various devices in the absence of external power.

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Determining if Low Power Mode is Enabled/Disabled from Command Line · macOS 12.2.1 (Monterey)

According to this article the following script should return the current Power Mode state: pmset -g |grep lowpowermode This is what it actually returns in my case: When set through system ...
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`Turn display off after` changes to default automatically

I set the Turn display off after in System Preferences -> Battery and System Preferences -> Power Adapter to Never. But it changes to 5 min on its own. MacBook Pro 2019
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Regarding never setting MacBook to sleep

If I always keep my Macbook turned on, and never set it to sleep. Plus, I keep a charger plugged into it whenever I use it, so the battery is always at 100%. Will it be a problem?
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New Battery Problem iPhone 7

I’ve decided to change my Battery all of the sudden while I was on a tour in an another country so I went to a Apple certified shop , they told me to charge my iPhone for 6 hours without interruption ...
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Macbook Air Charging Habit

I'm using Macbook air 2020 M1, use it for my main driver, and I usually work quite a lot both in workplace and home. Since MBA 2020 has amazing battery life, usually I don't bring my charger to ...
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How to fix jammed keyboard keys as a result of disconnecting the battery from a macbook pro 2015?

I have a 2015 MacBook pro. It wasn't turning on since I left it off charge so I disconnected and reconnected the battery, then it turned on. However, some of the keyboard keys weren't working as a ...
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Interpreting AppleSmartBattery manufacturing date from ioreg in macOS Big Sur and later

I am trying to make sense of the age of the battery (by calculating it from its manufacturing date). I need the information for something I am working on and need to know how to access it ...
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Unopened app taking 95%+ of battery power

I have a 2015 MBP on MacOS 11.6 and it recently has been running out of power quickly. When I click the battery icon on the top bar, it shows Atom is drawing significant power. This is weird because ...
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Debug MacOS optimized battery charging

I have an issue with the optimized battery charging in MacOS. Namely: Around two months ago, while travelling, I anticipated I would need 100% of my battery and requested my Macbook charge to 100% via ...
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Can I use a CR2025 battery instead of CR2032 for my AirTag?

I started to see that one of my AirTag batteries was getting low so I decided to change it. I already bought some CR2025 batteries already and when trying with one, it seems to work perfectly fine. ...
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Running a Macbook Pro 2017 constantly plugged in

I have a 2017 Macbook Pro which is my work machine. I wish to use my external monitor as the primary display. From experience, I know that the monitor works only when the Mac is plugged in to the AC ...
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How to properly gauge the battery life of my MacBook Pro (2021, M1 Pro 16")?

Got the laptop, a MacBook Pro (2021, M1 Pro 16"), on March 29th, 2022. Typical day: I leave home with 100% battery, go work in cafés or co-working spaces, and don't plug it unless it hits the 10% ...
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Is the M1 Macbook Pro Magsafe charging indicator supposed to be always orange (charging on hold)?

Our developer team got new M1 Macbook Pros, and we've noticed that none of our magsafe charge indicators ever turn green (like the old magsafe). They all stay orange while plugged in with the laptop ...
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Charging a MacBook M1 with MagSafe 3 and USB-C wall outlet [duplicate]

Something I've been wondering for a while is would be safe or bad for the laptop somehow to charge my 16" MBP M1 simply by plugging my MagSafe 3 charge cable's USB-C end directly into a wall ...
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Only use magic trackpad wired

Sometimes my magic trackpad doesn't work reliably or have lags because of unstable bluetooth connection. It seems to work completely fine when connected via the included lightning to usb-c cable. I've ...
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How to get battery status of BT devices with Monterey?

Since i've upgraded to Monterey OS, running system_profiler SPBluetoothDataType doesn't return the battery status for the BT devices connected. Any idea how to get this information?
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I believe I am unable to configure MacBook Pro 2015 model to standby immediately, does anyone have the magic incantations (pmset)?

I have an early 2015 model MacBook Pro and I notice that if I charge the battery to 100%, disconnect the power adapter and then close the lid, overnight it will use some of the battery, as though the ...
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What's the max temperature a MBP battery can get to? [closed]

What's the max temperature a MBP battery can get to when user is using it? Question is clear. If you have an answer, share the answer assuming you wan't to share it. If you don't have an answer, stop ...
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Monitor charging in detail

I have the suspicion that my power supply regularly interrupts power for a second or so – one observation is that when working with my closed MBP (2015) with an external monitor, the monitor every now ...
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Replaced iPad3 battery, does not appear to be charging unless under specific conditions

I have an iPad 3 whose battery and antenna I just replaced. It's been put back together, but left unglued and without the 4 screws connecting the LCD, for easy access while debugging. I am a beginner ...
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Disable MacBook Pro 16 m1 max charging with magsafe3

I want to get the new macbook with magsafe3, I am thinking of getting the 16 inch max 64gb version. I currently have a 2015 retina and I disable charging using this method How to disable battery ...
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2 votes
1 answer
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How to turn off Thunderbolt charging on Mac Book Pro so that only the main MagSafe charger is used?

I use a Mac Book Pro (MBP18,2) in a primarily office setting and have it plugged in essentially all of the time. This is, of course, detrimental to the battery. I'd like to allow it to drain and use ...
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Plugged in vs 20%-80% charging for maximizing battery lifespan? [closed]

There seems to be two typical criteria for maximizing battery life of an iPad. One is that getting the charging percentage near 0 or 100% is to be avoided by maintaining the charge between the 20%-80% ...
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Replaced Macbook Pro 13 2014 battery but lost some keyboard functions (1QAZ, backspace button and lower brightness)

I replaced my MacBook Pro 13" (2014) battery but when I turned my MacBook on all was good except that I lost the functionality of 1, Q, A, Z, Backspace, and Lower Brightness keys. I went back ...
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What to replace, power button or logic board?

Working on a MacBook Air 11" Mid 2013 with an i5 Processor. I found that shutting the unit down and then pressing the power button would not return the unit to a powered state. Removing the ...
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Can't see last 10 days battery usage

In battery usage I can only see the last 24 hours battery usage and not the last 10 days battery usage. Is there any way to figure out what is wrong?
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I’m getting on a plane! I need my iPad to charge… it’s stuck at 80%. Is it optimizing? If so, how do I force a full charge?

I’ve tried everything to get it to charge past 80%… different charger bricks and cables, restarted, low power mode… won’t go past 80%. Unlike iPhone, there doesn’t seem to be an obvious way to force a ...
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MacBook won't turn on after speaker replacement

I was dumb enough to not disconnect the battery first, so I disconnected the headphone jack, then disconnected the battery and everything else. After the replacement, my Mac won't turn on, SMC reset ...
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imagent using significant energy

imagent (I don't know what this app is, I never downloaded it) is using significant energy. Whenever I click on the battery icon in the menu bar, it shows that imagent is using significant energy: I ...
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Startup Script to make Mac sleep at lock screen

Recently I wrote a simple script to run when my MacBook starts up to set the battery charge limit for the day and then reset. Because the laptop is docked every day except two days per week, I want to ...
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Macbook Pro 2018 13" wakes up with empty battery but is not actually empty

Last week I had a few times that in the morning, after closing the lid (i.e. not shutting down) that when powering up (no power connected) I see a red empty battery icon. Weird, as the night before it ...
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What can I safely charge with the apple 20W power plug?

I once plugged a macbook air usb-c charger on a wireless speaker and it completely screwed the battery, so apparently, I can't charge any battery with any charger. I just got a 20W apple charger for ...
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Charging MacBook with Phone charger and vice versa

I have a 2020 MacBook air M1 that comes with a 30w charger, and a Poco M3 that comes with a 25w charger. each charger has the maximum output power on the respected device, but when I switch the ...
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2 answers
384 views

Does the 140W USB-C Power Adapter work on MacBook Pro (16-inch, 2019)?

I read this other question for a problem that i have(MacBook Pro not charging under heavy load) Since I do React native development, it seems to be chugging hard on my battery, and since it appears to ...
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Mac not Charging When Connected to Dell Monitor With Thunderbolt3/USB-C

I connect my Mac to my Dell monitor with a ThunderBolt3/USB-C cable and it used to charge before. Now when I connect it shows the charging sign on my battery but says the following. What has gone ...
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Apple Charging MagSafe 2 cable not working?

My MacBook charger won't magnetise properly anymore. I took a look at the ports and one of the little gold things are burnt, and the same one on my MacBook. I tested my old charging cable that broke ...
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How to use Optimized Battery Charging efficiently on M1 MBP?

I have an M1 MacBook Pro (Big Sur 11.2.3) for about 1 year, but during this time I only saw that the optimized battery charge was activated 5-6 times. Whenever I try to charge, it charges up to 100% ...
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Macbook Pro (mid 2017) occasionally turns on after battery replacement but shows battery with X in top corner if it does

How do diagnose this? How to proceed? Did a simple battery replacement. How to test anything to do with that in a minimal way? Are screws and case required to be able to detect battery? Are there any ...
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4 votes
3 answers
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How to disable fast charging on 2021 Macbook Pros?

Is there a way to disable fast charging on 2021 Macbook Pros? These are my reasons for doing so: lower speed charging produces less heat and is therefore less stressful for batteries I would always ...
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-4 votes
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Can I run my laptop directly from an external battery at full throttle while charging my iPhone from the laptop at the same time?

I would like the freedom to power my laptop from an external battery to avoid very frequent cycling between 100% and 90% (say 2 or 3 times a day) due to my unique work/travel habits. I've never bought ...
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-79 shutdown code

Like 2 weeks ago my macbook air 11-inch(Mid 2011) (yes,old) suddenly shutdown,but then it started up normal. The error code was -79,that means "incorrect value coming from battery". My ...
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Can I get a battery percentage for a non-Apple BT device from the command line in Catalina? [duplicate]

I used ioreg and the only one of my connected devices that seems to report its battery level is the Trackpad: ╰─➤ ioreg -l | grep -B 20 BatteryPercent\" | | | | | | | "...
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Macbook Pro M1 battery health dropped very rapidly

I purchased my MBP M1 at July 2021. It started dropping battery health very quickly, and I feel it happened faster after the Monterey update. It shows 93% in the settings and when I installed coconut ...
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Use magsafe and USB-C display with charging capabilities

I've a m1 macbook pro 14" and a LG 27UK670-B display connected via USB-C to the mac. Connecting via USB-C leads to the macbook charging it's battery (taking power from the display). I'd however ...
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Iphone 7 Plus doesn't start up and stuck in loop while charging

I have an iPhone 7 plus which has this weird problem. It doesn't start up with the side button. Doesn't matter for how much long I hold the side button it doesn't turn on. I thought may be the battery ...
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2 votes
1 answer
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Does my iPhone use up my MacBook Pro battery when it is plugged in?

I have had a Macbook Pro 2019 for two years and I almost always use it plugged to the AC. Let's say I let it fully run out of battery power roughly once a week, just as I used to do with my former ...
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How to remove MacBook Pro 'battery's capacity is significantly reduced' warning?

Background 2017 13" Macbook Pro w/ AppleCare purchased new in 2017 had intermittent charging issues - would not see charger and drain rapidly could never reproduce for Apple to diagnose late ...
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How much does battery brand matter in an aftermarket MacBook Pro replacement

So, I just bought a my first replacement A1618 battery for my Mid 2015 Retina MacBook Pro from what seemed like a reputable battery seller offering a 1-year warranty. But I'm really just guessing that ...
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New battery: "The battery's capacity is significantly reduced."

I changed the battery in my old Macbook Air 11" (mid 2013). It all appears to work fine after installation. To recalibrate the power system, I followed the steps outlined by, e.g., ifixit: With ...
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Limit iPhone charging current

I use the included lightning to usb-c cable to charge my iPhone 12 by connecting it to my macbook pro (2017). I've heard that reducing the charging current is potentially beneficial to the battery. If ...
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