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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21 views

Battery Not Charging and Light Not Showing Up Again

I just have got a Macbook Pro Retina 2014. The charger is new and 85 Watt. I have two issues. When I first connected the charger, there was 54% charge on the laptop and for only 1 second the green ...
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21 views

MacBook Pro shows not charging when plugged in

I've got a MacBook Pro (Retina, 15-inch, Mid 2015) and as of today it says "not charging" even when it's plugged in. The MagSafe connector has an orange light, and the power menu's screenshot is ...
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24 views

Safari using significant energy

I am currently using a 2017 Mac Pro touch bar that is still on Mojave 10.14.6. My safari is consistently shown using significant energy on my menu. In my activity monitor, I noticed there are many ...
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16 views

MBP 2012 No Battery Available, Your Computer is not connected to a power source

I have a MBP2012 with a failing battery. Battery shows about 3V across my multimeter on the but the port is still 12v at the correct pin points. So the battery is dead - that's fine, I can replace it. ...
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1answer
28 views

CPU throttling on Macbook with bad battery and Catalina

I've seen some answers for this but it references older systems and older OSes. Can anyone update this for relevance in the Catalina era. I have a Macbook10,1 with a shot battery. The screen is ...
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3answers
61 views

MacBook Pro 16" runs about 10 degrees hotter when plugged in on idle, is this normal?

The degrees delta has a noticable impact on fan noise and is making me consider returning the machine. Is it normal for MacBook to be running so much hotter when plugged in? Idles at 60 degrees on a ...
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23 views

Reliable ways to know the battery capacity of my iPhone 6s?

I want to know the battery capacity of my iPhone 6s. What reliable ways are there ? Apps I have tried gave me — the same evening — different results : 1690 mAh, 1492 mAh, 1400 mAh.
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33 views

Iphone 5 keeps shutting down when I have 40% battery left. Question about reset and restore

I have an iPhone 5 (old I know, but I'm rather fond of the compact screen. It's a secondary phone) that was working perfectly until I updated ios. Since the last update available was installed, it ...
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1answer
30 views

Battery drains too fast when device is Shut Down

When I bought my brand new Macbook, it was like 9-months old (according to battery production date) and still had almost 40% charge on first turn on. But after that, every time I charge my Macbook (...
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2answers
654 views

Gmail Doesn't Respect Dark Mode System Preference on iOS 13

Given Dark Mode can really enhance battery life, I'm keen to implement it. Although all my other IOS/IPADOS 13.3 Apps seem to respect the "System Preferences" > "Display & Brightness" > "...
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80 views

Can I run MacBook Pro Retina 13 inch early 2015 without a battery?

I have a swollen battery, and want to remove it while waiting for the replacement. Can I remove it and safely turn on the Mac only with the power chord?
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55 views

syspolicyd is killing my battery on a new MacBook Pro, repeatedly scanning and re-scanning my Steam library

syspolicyd is consistently using ~20% CPU and consuming lots of power. Tracing it with sudo fs_usage "$(pgrep syspolicyd)" reveals that it's repeatedly scanning the same dozen or so Steam apps in my ~...
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13 views

iPad pro 12.9 is charging but not turning on

My iPad pro 12.9 2‭019 was completely drained and when I plugged it in the Type C charger it showed that it is charging but it׳s been overnight and still hasn't powered back on
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36 views

Mac OS Catalina, uneven battery drain in AirPods

I have noticed something about my AirPods, and I want you to help me understand if this problem is due to AirPods or Mac OS. Initially, my AirPods were charged to 100%. But After a few hours of usage,...
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1answer
62 views

iPad battery calibration?

I bought an old iPad 4 mini which was somewhere in desk with empty battery for last who-know-how-many years. The result is battery in a bad shape obviously, iPad works great but shuts down when ...
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0answers
54 views

MacBook battery drains SIGNIFICANTLY after shut down

experts! I really hope to solve this problem as it has been drilling me for weeks now. I have a MacBook Pro 13" (2018 with Touch Bar), the A1989 model. When I shut down my Mac, the Mac shut down ...
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18 views

Early 2015 Macbook Air (A1466) Not Charging

I have searched far and wide to try and solve this issue but have had 0 luck. I have an early 2015 MacBook Air (A1466) that I've kept in great condition over the years. It's never really left my ...
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1answer
44 views

MacBook Pro 2009 doesn't boot without charger

I have bought a used MacBook Pro 2009 from eBay. I have charged the battery to 100% (worked fine), and booted it. Everything worked, except that I can't boot when on battery. The battery itself is ...
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1answer
25 views

How to choose mac battery?

I had a problem with my battery(as I think). Actually I asked the question before about this issue here MacBook turning off suddenly And eventually, I have decided to change my battery. I opened my ...
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26 views

Are third party chargers for iPhone bad despite having government agencies' certification stamps? [duplicate]

My usage history with Apple: iPhone 3 (2011~2013) and iPhone 8 (2018~present) I sometimes used chargers purchased from convenience stores. Although all the chargers I got had government certification ...
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2answers
39 views

MacBook Air 10.15.2 Shuts Down on Startup, falsely indicating 0% battery [duplicate]

I have a MacBook Air, with Catalina 10.15.2. When I start it up unplugged, with a full battery, most of the time it starts up and then immediately shuts down. When I hit the power button again, it ...
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1answer
44 views

My MacBook Air suddenly shut down today, is there an easy way to find the associated log entry?

My old 2012 MacBook air suddenly shut down. I had the battery recently replaced by a non-Apple shop since Apple has already obsoleted this model. The battery was somewhere between 60% and 80% when ...
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1answer
19 views

Accidentially broke a header - but do I really need to worry?

I was upgrading the memory, SSD and optical drive (modded a blu-ray drive with the original upper shell from the SuperDrive) in a MacBook 2010 White Polycarbonate a1342 when I realized that one of the ...
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18 views

battery is not charging after liquid contact [duplicate]

After spilling a tea into the macbook 11 i have disassembled it. Cleaned everyhing with IPA and brush. Put together. Macbook is working but charger does not charge. LED does not light. System says it ...
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1answer
33 views

What size is this internal screw for the Macbook Air (A1466)?

I just replaced the battery for my Macbook Air (A1466), but in the process I lost one of the screws (image attached). I initially ordered a standard replacement set from Amazon, but realized it may ...
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1answer
78 views

Can I completely turn off the fans on a MacBook Pro (0 RPM)

I would like to know if there is a utility to completely turn off the fans. Currently, when completely idle, fans are showing 2000 and 2100 RPM. Although this is probably not recommended, I would ...
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1answer
35 views

What can I do to regulate iPhone charging rate (make it charge slower)?

My iPhone is charging from my MacBook. I believe that it charges too fast and even heats quite sensibly. Also, I'm afraid the battery could degrade at a greater rate with such a fast charge. So, I ...
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1answer
72 views

What is killing my battery?

I have an iPhone XS (bought brand-new, About section says limited warranty until 14 april 2020, the date I bought it) running iOS 13.2.3 When I took it out of the box it was running iOS 12 and I ...
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1answer
84 views

Is my battery in my iPhone faulty, or something more?

I have an iPhone 7. I had the battery replaced approx 6 months ago. I've noticed the battery life hasn't been overly great considering it's a new battery. Yesterday, my phone started turning off at ...
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1answer
29 views

Installing more than one battery pack in Macbook?

I am interested in installing two standards aftermarket batteries (wired in parallel) in Macbook 11 inch 2017. Please ignore the issues with the physical housing constraints - I am purely interested ...
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3answers
109 views

Can I check iPhone, iPad, Watch battery on Mac?

My goal is to have battery status of other Apple device on my Mac (preferably on menubar). I'd like to have a glimpse of the battery status of my iPhone, iPad, Watch, and Airpods. I'm a user of ...
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0answers
153 views

Macbook Pro Keyboard and Trackpad not working after battery change

I've changed my battery after this question: Does battery condition have anything to do with macbook pro performance? The performance has significantly increased, however I have a new problem. My ...
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0answers
23 views

Export battery usage report

Is it there any tool that I can use in order to export the battery usage from my iPhone SE? The device is running iOS 13.2.2. Thanks in advance.
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31 views

Is the iOS 13 'Optimized Battery Charging' feature on the iPhone optimised for smart battery cases?

I have the iPhone XR Smart Battery Case, I charge my phone every night and therefore my phone very rarely ever goes below 100% charge as it uses the charge in the battery case first. As I understand ...
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0answers
233 views

macOS Catalina drained my Macbook Pro's battery while in sleep mode

Yesterday I updated to macOS Catalina on my Macbook Pro 13" (i7, 16GB) and something strange has happened. Normally, the way I use the computer is to be attached to a double monitor setup, with the ...
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14 views

MacBook Pro 2010 won't turn on

I was using my MacBook Pro without a battery , just with the plug in cable for a while with no problems, last week I took a trip and left my Mac switch OFF with the cable plugged in . Now on my return ...
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1answer
25 views

iPhone still has 90% battery but telling me it has degraded and should be serviced

My iPhone is not brand new (it's an X), but certainly not old enough to present any problems. My battery is at a healthy 90% after a couple almost a couple years of use (bought in Jan 2018 if I'm not ...
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5answers
186 views

MacBook turning off suddenly

I have such MacBook Pro (Retina, 15-inch, Early 2013), and I noticed such "feature": for example, I have 50 (it could be any number) percent of battery, charger cable does not connect. I can surf the ...
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1answer
560 views

Battery Drain on MacBook Pro (2018) on Catalina when sleeping

I've noticed insane battery drain on my MBP since moving to Catalina, even with the new .1 release installed. E.g. Last night put the machine to sleep, nothing running, no rogue processes in activity ...
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1answer
19 views

iPad 2 mini with weird battery issue

We have an iPad 2 mini that is several years old with recent issues with the battery. After charging for extended period of time it will display a dead battery symbol and not boot up. After plugging ...
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1answer
49 views

Macbook Pro 2018, trackpad issue because of swollen battery or faulty trackpad?

I have a weird trackpad issue on my 15" 2018 Macbook Pro since a few days now. I suspect it's caused by a swollen battery, but I'm not totally sure. Here is the issue,: Force Click almost never ...
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0answers
22 views

Early 2011 Macbook Pro boots, then shuts off

I have an Early 2011 Macbook Pro that shuts off shortly after it boots up. Essentially it'll turn on, the Apple logo will show and so will the load bar. However the load bar doesn't budge and the ...
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0answers
20 views

MacBook battery won't charge but powers on either battery or direct power source

My MacBook won't charge. When I plug the magsafe adapter it doesn't light up (no amber nor green). I tried using a friend's charger to check if the adapter is at fault but the result is the same. So I ...
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1answer
22 views

Cap energy consumption of processes on macOS

Most of us probably already had this situation: One is tight on battery and trying to save as much energy as possible. Then suddenly a process goes wild and drains the battery by 10 or more percent ...
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14 views

Is these usage habits leading my MacBooks result to battery bulge? [duplicate]

I have a Macbook Air and two Macbook Pros. All of their batteries got a bulge. I like to use them in this way: Always plugged to the power if there is one. 95% of the time, I plugged it to power. I ...
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1answer
199 views

Catalina Notes.app draining battery?

After upgrading to Catalina, I noticed that my MacBook Pro (13" with touchbar) would go from 100% battery to nearly zero in just about 30 minutes. The fans would be running like crazy. Using Activity ...
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0answers
16 views

How to prevent Macbook Air from going to sleep after disconnecting power cord?

I have an annoying issue with my MacBook Air (13-inch, Early 2014 on macOS High Sierra Version 10.13.6): A few minutes after disconnecting the power cord from my fully charged laptop, it goes to sleep....
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0answers
22 views

What should I expect about the battery for a new macbook pro

I bought a new 2019 MacBook Pro, 2.4 GHz Intel Core i5. I feel like the battery is not as described. I tried with open only one Youtube video on chrome, set the brightness to 75%,and the battery ...
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1answer
34 views

iPhone will suddenly shut down repeatedly unless charged

I've had my previously-owned iPhone 5 for almost a year now and a few days ago it started to act strange. First, while charging it says it's 47%. It suddenly shuts down and then it shows that it's ...
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1answer
292 views

Can an iPad Pro Charge a MacBook Pro?

I have a 2018 iPad Pro and a recent MacBook Pro (with USB C). Is there any way I can control what charges what when I connect the two? If I connect the two with a USB-C charger, my MacBook ...