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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37 views

My 13” MacBook Pro 2020 Thunderbolt port not working/charging

I bought this brand new MacBook Pro few weeks ago, now one of the two Thunderbolt ports are not working. When the MacBook starts, the battery icon is black filled with a bolt inside. The system ...
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1answer
37 views

What is this “web” icon in iOS battery usage?

Does anyone know what this “web” icon is under battery usage in iOS 13.6 ?
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1answer
21 views

Macbook Pro 2015 Lid seemingly overnight stopped from closing properly

When I plugged my Macbook Pro (Early 2015) yesterday, the lid was closing perfectly. This morning I woke up early and left without checking on the laptop. 8 hours later, I came back and realized the ...
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Macbook Pro never shuts down

I've got a Macbook Pro 2020 13 inch (10th gen CPU) and I can't get it to shut down so it won't consume any energy. Methods I used are: (1) Hold down power off button (top right) for a long period of ...
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25 views

MacBook Pro will not boot - shows “low battery, charging” screen

I have a 15" MacBook Pro (2015 Retina). On Friday I closed the lid, disconnected from power and put it away. Today, I tried turning it on but I got the low battery screen. Little surprising but I'...
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In macOS, are there settings/apps that would 'grab my attention' when battery is running out?

I have been Windows user all my life, just got MacBook Pro through company. I use multiple external monitors and often get deeply buried into one of them. What's annoying is whenever the battery is ...
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2answers
48 views

MacBook Air 2015 MagSafe charger is too hot to touch

In the last couple of weeks, I've noticed my charger connector (the part which connects to Mac) is too hot to touch and also there are some pins a bit burnt (it is happening slowly but getting visibly ...
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1answer
31 views

How to find watt hours of MacBook?

I see the latests Macbook Pro 16" has a 100 watthour battery - how do I find the equivalent stat for my current Macbook given the info under About -> System Report -> Hardware -> Battery ...
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All apps using significant energy on new machine (MBP 13", 2020)

I have a brand-new MBP 13", 2020 with high-end specs (i7, 32GB, 1TB HD). I've always had MacBook Pros in the past, but this one takes the longest to start up (around 4 minutes) and no matter ...
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31 views

Macbook Pro 2019 and Dell D6000 docking station battery charging [duplicate]

I've recently purchased a Macbook Pro 2019 and I'm using it with my existing Dell D6000 Universal docking station to render three HD displays. The display set up is working perfecly. I've connected ...
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Safari consuming a lot of juice on rMB 2016 with Mojave

I hope you're all doing good and staying safe. To make things short. I've upgraded to Mojave a month ago, since I couldn't push ElCap for longer. Until last month, my batt life was impeccable (I never ...
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MacBook Pro battery not charging error - long term fix [duplicate]

I have a 2018 MacBook Pro 13 inch (the one without the touchbar). Over the past weeks, I have twice faced the situation where the charger is plugged in but the battery is draning and I get a "...
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How long do I have before the battery status changes from service recommended to replace now?

I have an early-2015 MacBook Pro 13" whose battery status has changed from normal to 'service recommended' state. The cycle count is around 367 and the battery backup runs strong at around 4-5 ...
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48 views

2017 MacBook Pro starts with a question mark folder when there is less charge and when it wakes up from sleep

My 2017 MacBook Pro reboots with a question mark folder when the charge is below 50%. When I connect my charger, it starts normally. I also noticed when the Macbook goes to sleep and wakes up, it ...
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1answer
40 views

MacBook losing charge while shut down

I have a Macbook Pro 13 2019 and a Macbook Pro 13 2020. 2019 one runs 10.14.6 Mojave. 2020 one runs latest 10.15 Catalina When I turn off the Macbook Pro 2020 with "shut down" on 100% and I ...
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Macbook charging but not really charging [duplicate]

My macbook's charging indicator light shows that it's charging (the light is orange) but it's not really charging because it's been always orange for the past 8 hours. At the moment, my battery is ...
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52 views

Battery discharging while plugged in [duplicate]

I have a new 2019 MacBook Pro 16" on Catalina 10.15.5. I recently got it back from the shop - upper case replacement for bad keyboard that included replacing the battery as part of the repair. ...
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66 views

Battery charge status decreases while plugged in charging [duplicate]

so I have a 2019 MacBook Pro 16" on Catalina 10.15.5. I recently got it back from the shop - upper case replacement for bad keyboard that included replacing the battery as part of the repair. ...
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17 views

Odd OS X behavior when it goes to sleep - returned to Login, said it shut down bc of a problem

I have posted something like this before, I run a 2012 MBP with Catalina. The odd behavior is that if I close the lid the machine seems to shut down completely (even with the power connected) and ...
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3answers
60 views

Should I replace my Macbook battery, charger, or both after 5+ years of use?

I own a 13" mid-2012 MacBook Pro, and have been using it for over 7 years. I have replaced the HDD with a larger SSD, and upped the RAM to 8GB last year to improve its declining performance. ...
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0answers
21 views

Will getting a new battery fix my dead Macbook?

My Macbook (2017 - 12 inch) just died on me. The screen went black and it shut down without warning. I've tried all the suggestions on the Apple help website: tried different power cords, resetting ...
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1answer
20 views

Running Macbook with 7.3v battery & AC power adapter

MacBook Pro 2013 non retina device has a defective battery which outputs only 7.3 volts. The Macbook cannot run only on the battery - it requires the AC power adapter to be plugged in to power the ...
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MacBook Air 2020 (i5, 16GB, 512GB) uses a lot of battery while sleeping

Few days ago I received my new Macbook Air and I noticed that it just eats battery. But to have some numbers I charged it to 100% and then I closed the lid. After 6h20m I opened it and it had only 85% ...
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4answers
233 views

MacBook Pro randomly discharges from 100% to ~90% when plugged

My 15 inch 2018 Mac Book Pro with Mojave 10.14 randomly starts draining battery when plugged in. When I try to move the cable, change the power cable to a different USB slot nothing helps. The battery ...
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1answer
47 views

How do I convince Apple support that my iPad battery failed?

I have a 1st gen iPad Pro 12.9". It's 4.5 years old. A week ago it started repeatedly rebooting about two minutes after boot. When booted it shows battery at 3% or 4% but once showed it at 100% (...
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9 views

2011 Macbook Pro 15" keeps eating batteries

I have an ancient 2011 MBP that keeps destroying batteries. I had the logic board replaced in 2016 for the integrated graphics recall, FWIW. I just replaced the current batt with one from OWC (...
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15 views

OEM adapter will only charge if the battery is first disconnected from the logic board before it's plugged in

I'm trying to get to the bottom of this weird issue I seem to be having. I have a OEM charger that wouldn't seem be charge my Macbook pro 13 retina (late 2012), model a1425. I recently did a battery ...
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14 views

Macbook Pro 2013 15” Mojave stuck in boot loop

Macbook Pro 2013 15” Mojave stuck in boot loop A couple of days ago after trying to install Avast VPN, my Macbook Pro 2013 (15” Mojave) was giving warning messages it was low in memory so I closed ...
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1answer
80 views

MacBook Pro 16" battery drains overnight

I've had this Mac on Catalina 10.15.5 for a few weeks now and suddenly noticed this battery drain overnight. It went from 60% to 3% two nights ago and happening last night too. After doing some ...
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1answer
308 views

Swollen battery for the past few days - MacBook Pro (Retina, 15-inch, Mid 2015)

I checked with Macbook Pro mid-2015 15" swollen battery and I am asking this question. My MacBook Pro (Retina, 15-inch, Mid 2015), details enclosed, is working perfectly. For the past two days I ...
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13 views

Macbook Pro Retina (mid-2014) shutdowns with -128 code

I have a Mid 2014 Macbook Pro, which was just serviced at Apple (battery replacement). While they were replacing the battery they cocked up the main board with CPU, RAM etc and replaced that for free. ...
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1answer
44 views

MBP16 charging: After sleep mode no charging (but with charging icon), restart helps

I have strange charging behavior that started some time ago. My MBP16 (Catalina 10.15.5 (19F101)) just stopped charging until i do some actions. [!]ITS HAPPENING RANDOMLY, not all the times. AND EACH ...
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2answers
51 views

MacBook Pro will only charge if using a 3rd party adapter after battery replacement

I’m having a bit of a weird situation. After running a program that really seemed to overheat my computer, a few days after my charger stopped charging my 13” Late 2012 Retina MacBook Pro. It was ...
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1answer
30 views

Why does the max charge reported by battery health app differ from the “Full Charge Capacity” in About This Mac > System Report?

In System Information > Power it says Charge Remaining (mAh): 5179 Full Charge Capacity (mAh): 5432 But Battery Health 2 reports a Current Charge of 4952mAh and a Current Max of 5097mAh. Why are ...
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1answer
29 views

Mac Battery malfunctioning in just 2 years

It's just been 2 years since I have been using my MacBook air. I use it for mostly for reading books, videos on YouTube or movies. The battery shows "service needed". The battery cycle count is just ...
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1answer
76 views

Why does a MacBook throttle without a battery?

According to this posted answer, a MacBook Pro will throttle because otherwise its power consumption might exceed the amount supplied by the AC adapter. However, from my experience, my 2012 MacBook ...
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1answer
28 views

iPhone Heating/Slow/Quick battery drain after repair [closed]

I have 2 iPhone's 1st is 6s+ 16GB 2nd is 6s+ 64GB I use 2nd as my primary device but also carry 1st as the camera sensor of the 2nd has failed a few months ago So on Saturday, I decided to replace ...
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2answers
27 views

MacBook Pro doesn’t turn on without charger [duplicate]

MacBook Pro 2012 non retina model 13.3 inch. I am trying to turn on MacBook with a replacement battery 11.1 V, 6000 mAh, 66.6 W I installed myself. The original battery was 10.95 V, 63.5 W. The ...
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0answers
24 views

Is it actually safe for battery health to keep power adapter plugged if MacBook is charged (Mac OS10.15.5 )? [duplicate]

Sometimes I do small gaming on my MacBook Pro and it discharges quite quickly while running games. I understand that this is normal for every laptop. But in the latest update 10.15.5, there is a "...
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0answers
18 views

MacBook Pro (15-inch, Early 2011) 85W AXXX compatibility issue [duplicate]

Hi I have bought MacBook Pro (15-inch, Early 2011) recently and there was a problem with it. It was charging really slow. 8 hours of charging for full capacity charge. And then I found out the guy I ...
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20 views

2017 MacBook Pro Battery Not Charging [duplicate]

Having a problem with my recently purchased refurbished 2017 15" MacBook Pro. Yesterday it suddenly shut down and after rebooting, I noticed the battery was at 1% despite being plugged in. Now if it ...
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1answer
76 views

Macbook slows down when connected to external monitor and power supply

I have a Macbook Pro (Retina, Mid 2012) with the following configuration: 2.3 GHz Quad-Core Intel Core i7, 8 GB 1600 MHz DDR3, Intel HD Graphics 4000 1536 MB I use Dell P2419H as my external monitor ...
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0answers
14 views

Set of laptop models that support battery health management [duplicate]

I have updated my MacBook Pro (Retina, 15-inch, Mid 2015) to the latest Mac Os Catalina 10.15.5 (19F96) which should include battery health management feature. But I can't find it in my settings. I ...
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2answers
524 views

“Battery Health” in macOS Catalina 10.15.5?

I have just installed the macOS Catalina 10.15.5 update on my 11" Mid 2013 MacBook Air. The update is working fine. The MacBook Air specifications on the Wikipedia page says that this model has a ...
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0answers
220 views

Apple Diagnostic Result PFM006 and Kernel_Task taking upto 300 % of CPU and Depleted Battery

My Macbook Air (2018) Retina battery has depleted within 130 cycles. I was running Windows via Bootcamp in heavy load, letting it discharge fully and charge repeatedly. If I unplug from power source ...
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1answer
45 views

Macbook Pro 2015 waking from sleep every few seconds

My 2015 Macbook Pro loses charge rapidly while asleep (almost as fast as while it's awake and I'm using it). From looking around online, some people seem to have resolved this by resetting the PRAM - ...
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1answer
50 views

My iPhone SE only boots on quick charge

When I try to boot it it shows the Apple logo for a second and then gives up, same with Recovery mode. When I put it on quick charge it boots up and works but when I unplug it, it slows down and then ...
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1answer
22 views

Charging Earbuds Charging Case 5V DC (USB C) with 96W Apple Macbook Charger?

Today I connected my 96W Macbook Pro Charger to my Mpow M9 Wireless Earbuds Charging Case (purchased a week ago) which also has Type C charging port. Within few seconds of connecting, smoke started ...
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0answers
22 views

Apple Hardware Test, 4SNS/1/40000000: TB0T-129

I made an Hardware Test with may MacBook Pro 5,1(A1286) and got this Error code below: 4SNS/1/40000000: TB0T-129.000 This is a sensor error. Battery temperature sensor is not working. Macbook is not ...
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2answers
87 views

Battery status and replacement

About a week ago my battery status (MacBook Pro mid 2017) claimed that the battery should be replaced after 250 cycles. Now, all of a sudden the battery status has returned to normal. ioreg -l -w0 |...

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