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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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19 views

iPhone drains the battery after disconnected from CarPlay

Occasionally, when I disconnect my phone from CarPlay, the iPhone will drain the battery very quickly, but not always. In Battery Status I see no application running on the background, but the iPhone ...
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1answer
34 views

2017 Macbook Won't turn on - Displays battery icon

My wife's 2017 macbook won't turn on/charge. It just displays this battery icon, with the red bar of the battery flashing intermittently. It's currently plugged into the charger but this doesn't seem ...
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15 views

MBP shutting down during sleep

I usually put my 2018 MBP into sleep by closing the lid (without any program open) and next time I only need to open the lid and unlock with fingerprint. However, it recently got an annoying behavior ...
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12 views

Macbook Air goes to sleep when Magsafe connects

My 2015 Macbook Air goes to sleep the moment the MagSafe adaptor connects and the screen won't turn on until I disconnect the adaptor. My battery icon shows that it detects the adaptor but doesn't ...
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0answers
16 views

Automatically toggle iPhone Low Power Mode on set schedule

Is there a way built-in, using Shortcuts app or other to schedule toggling of Low Power Mode on an iPhone?
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1answer
16 views

Early 2015 Macbook Pro Internal Keyboard isnt working

Before i start, i replaced the battery on my macbook pro early 2015 model. I followed the instruction from ifixit to a T. When i went to turn the laptop on, the power button didnt do anything. I ...
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0answers
17 views

Is it safe to charge my MacBook Pro with a 24W solar panel with USB-C? [duplicate]

I charged my 2016 13" MacBook Pro i7 with Touch Bar this morning with a 24W solar panel. I am not sure if this is safe to do longterm for the the laptop. Am I damaging the MacBook if I do this? What ...
3
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2answers
38 views

Macbook pro 2016 0% battery 350 cycles

today my mac didnt turn on, i plugged în and turned on then i saw 0% battery. Why? At only 350 cycles and 2 years.
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17 views

MacBook Pro 2015 won't turn on

I got a 13" 2015 MacBook Pro 13 and today it turned off because I didn't have the charger with me. Now when I plug the charger and try to turn on, it shows an almost empty battery and a lightning bolt ...
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0answers
18 views

MacBook pro won't stay on and has difficulties powering up

MacBook pro 13" touchbar from 2016. The MacBook sometimes will turn on, most of the time it won't. When it does turn on, I can get as far as the login screen, where it will completely shut off after ...
1
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1answer
26 views

2018 Mac book pro doesn't go to sleep sleep after being idle

The new 2018 MacBook pro has no setting to go to sleep after a set amount of time of inactivity. Often I'll leave my laptop for a few hours, the display will be off but the laptop will have drained ...
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3answers
84 views

Maximize iPhone battery lifespan by keeping it plugged into power whenever possible

I know, sometimes it can explode, but is it a good advice to let the iPhone - whenever possible - plugged in to a power outlet in order to maximize battery lifespan (so it's almost always at 100%)? ...
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0answers
28 views

MacBook Pro 15 2017 and power banks

I travel a lot, so I came to the conclusion that a power bank made for charging laptops is a good solution when wall-plug is not an option. The question is how many full charges can I expect to have ...
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1answer
29 views

Are these temperatures normal?

I have a 13-inch, Mid 2012 Macbook Pro that constantly overheats. Normally, the only app I will be using will be Google Chrome and I will still experience these temperatures. But occasionally I use ...
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0answers
15 views

Can I use a powerbank to charge a turned off macbook?

If its allowed I'll link an example case. Powerbank Output:DC 5V/2.4A, Type C 5V/3A. Laptop is 2015 MBP 13". Someone told me it's MagSafe 2 power socket won’t charge with anything lower than about ...
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2answers
34 views

Is there ANY disadvantages of charging MBP 13" with a powerbank that outputs 10W?

Device is Macbook Pro 2015 13". It has 74.9 Wh battery. Its original adapter is 60W. While charging the device will stay turned off. If its allowed, I'll link an example powerbank. Its 25000mAh / 92....
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1answer
31 views

USB to MagSafe 2 Adapter

In case of an emergency, I'd like to use my solar powerbank to charge my Macbook 2015 13". It outputs 2.1A 5V, and I learned that the MBP can be charged with that, but I don't know if that's actually ...
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1answer
23 views

Does Macbook Pro charging profile depends on electricity grid?

The questions might sound silly at first sight, but let me share my observations so far: I'm in the U.S. right now where I use the charger I got from IT and I see that my MPB charges slowly. It says ...
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0answers
15 views

MacBook Pro shows blank screen then shutdown [duplicate]

My MacBook Pro Retina (15inch Late 2013) shows blank black screen Shutdown randomly here are the logs can you tell the reason ?
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0answers
36 views

Battery percentage going up and down, MacBook Pro crashing randomly

I have a late 2016 MacBook Pro with macOS 10.13.2 High Sierra installed. I've had this problem from at least 3 months. At first, the battery percentage wasn't dancing like crazy but today it happened....
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1answer
40 views

What are the requirements to charge a Macbook Air?

I have a 2017 13 inch MacBook Air, and I also have a big power bank. I am wondering, if it would be possible to charge my MacBook Air using that power bank. The power bank only has an output of 5V/2....
2
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1answer
42 views

Will Apple replace the battery on an iPhone 5s?

On Apple's service pricing page, it says you can replace the batteries on the following models of iPhone for £45: iPhone SE iPhone 6 iPhone 6 Plus iPhone 6s iPhone 6s Plus ...
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19 views

6 months old iPhone 6s battery disabled peak power

I had my iPhone 6s battery replaced by Apple in November last year (i.e. 5,5 months ago). Today the phone crashed and peak power was disabled again. Admittedly it was relatively cold outside (about 8°...
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1answer
61 views

Why is the iphone 6s battery inferior to the 7?

https://www.cnet.com/reviews/apple-iphone-6s-review/ CNET 2018 indicates the 6s has: Inferior battery life, camera performance and processor speed compared to newer iPhones. What exactly is ...
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2answers
42 views

MacBook Pro battery rapidly loses charge [duplicate]

I have a MacBook Pro Mid 2010 that I changed the battery and logic board on, a few moths ago. I have an issue with the battery that after a full charge and removing the charger plug the battery ...
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0answers
38 views

MacBook Pro 2018 Battery not correctly working

I have a problem with my MacBook Pro from December 2018. Yesterday the battery was fully charged when I shut it down and when I started it today it had 0 percent left. What could this mean? Is this a ...
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1answer
103 views

My AppleCare is about to expire with my battery at 81%. Is there a good way to get it to 79% so I can get a new battery?

AppleCare covers the replacement of a MacBook Pro battery if it drops below 80% capacity before 1000 cycles. I have until the end of the year and I'm at 81% and 300 cycles. It would be nice to get a ...
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4answers
413 views

Macbook Pro mid-2015 15" swollen battery

I bought the MBP around 2016 April. Few months ago, around 2018 Nov, bottom of the device appears a bit uneven, with slight gap with my desk. Over past few months, it wobbles more and more serious. ...
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1answer
29 views

Can I charge a power bank through charging MacBook

I have: 15" 2018 MacBook Pro with USB Type-C ports. Xiaomi PowerBank 3 Pro with 1 Type-C input/output and 2 regular USB outputs. Can I charge my MacBook via MagSafe, and simultaneously charge Xiaomi ...
2
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2answers
53 views

Used 2015 MBP Pro Retina dropped 300 mAh of Full Charge Capacity in three months

Back in February I bought an used 2015 MBP Retina and it had 251 battery cycles and 8440 mAh full charge capacity. Now after almost three months I felt like the battery life decreased a little bit and ...
1
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1answer
30 views

MacBook Pro keep on “unplugging” battery and need SMC/PRAM reset

I recently brought my 2015 13" MacBook Pro to an Apple center to get a screen replacement for Staingate. They did it for free. Before this replacement my MacBook was doing really good actually. After ...
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0answers
21 views

“Unbending” a Macbook Pro keyboard bent by swollen battery?

I have a late-2013 Macbook Pro. It's been working fine and meets my computing needs so I have seen no need to replace it. Recently though the Y, U, I and O keys have stopped functionally reliably. I ...
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2answers
403 views

What can I do if my MacBook isn’t charging but already ran out?

My 12" 2017 MacBook suddenly stopped charging, and I tried an SMC reset. However, the MacBook already ran out on the battery, and thus I think even the SMC reset did not work, since when I did it, it ...
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0answers
19 views

MacBook battery versus Tesla or Chevy Battery [duplicate]

I am curious to know from other users who are knowledgable with LiION batteries. I work on a MacBook and just recently got a new machine. From all my research of LiIon batteries, the optimal life to ...
4
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2answers
807 views

How to charge AirPods to keep battery healthy?

Once on the official Apple website it was written to keep iPhone's charge between 20% and 80% for better battery life. I've not found exact battery specs for the AirPods (I am about 2nd gen), ...
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0answers
88 views

MacBook Pro battery gets empty while lid is closed

For some time now I cannot left my MacBook Pro unplugged while I close the lid, or the battery will get empty overnight. I have MacOs 10.14.4 (18E226) on a MacBook Pro (13-inch, 2017, Four ...
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43 views

MacBook Air battery discharges overnight (April 2018)

My MacBook Air's battery sometimes discharges overnight. Not always, perhaps just 60% of the time. It is always on sleep (I just close the lid) and it is usually for 8-9 hours. I unplug it, close the ...
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0answers
18 views

2015 Macbook Won't Turn On - Shows no sign of life

I recently bought a 2015 Macbook from a friend, and after only a day of use, it won't turn on... I shut down the Macbook with around 15% charge left on it, so initially I thought this to be a lack-of-...
6
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3answers
2k views

iPad being using in wall mount battery swollen

Ive got an install with an iPad mini 4 installed in a wall mount running locked to a single app. The wall mount has a POE to USB adaptor built in. The iPad is powered by a TP link POE adaptor : https:...
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1answer
192 views

Trying to find out what is draining the battery on my MacBook Pro

I am trying to figure out what is draining battery on my Early-2015 Retina MacBook Pro overnight. I close the lid and leave it in sleep state overnight. The next morning, quite often I find that ...
1
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0answers
277 views

Apple MacBook Air battery

I noticed a very interesting aspect about the MacBook air's battery over the years. I bought a MacBook Air 2013, and recently I replaced it with the new MacBook Air 2018 13 inch Retina display. I ran ...
2
votes
1answer
322 views

Why is my new battery behaving weirdly?

Macbook Pro Early 2011 I am unable to understand why the battery is varying so much? It was just recently installed and is giving an excellent battery timing but this health difference is weird. Any ...
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votes
1answer
30 views

Macbook battery runs flat while “charging” with nearly full USB Brick

Road warriors buy Macbooks for untethered working and at times find themselves in a place without a powerpoint. So charging a Macbook from a USB Brick is a fundamental operational requirement. I ...
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0answers
30 views

Should my MacBook be on charge most of the time? [duplicate]

For optimal battery health, should I charge my Mac most of the time, apart from letting it run through a full battery discharge once a month?
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1answer
43 views

When MacBook runs out of battery after restart message problem detected occurs

For some months I have the following problem: After a restart (when my MacBook Pro 2017) runs out of battery, and after having logged in, a message that the computer was shut down unexpectedly occurs. ...
3
votes
1answer
950 views

How can I check how many times an iPhone or iPad has been charged?

On my MacBook Pro, I can see in the About this Mac → System Report → Power link, how many times the laptop has been charged. It lists the condition (currently as "Normal") on my laptop. I've seen it ...
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1answer
22 views

How long does it take for an initial charge with MBP?

We unboxed a new 2017 MBP three hours ago. I wasn't expecting it to start by opening the lid. I then went through all the stuff you have to do when you startup (icloud, apple id, etc) It was at 34%. ...
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0answers
72 views

My MacBook Air (13-inch, 2017) does not go to sleep after Mojave update [10.14.3]

Ever since upgrading to the latest version of Mojave[10.14.3], my MacBook Air (MBA) (13-inch, 2017) refuses to sleep with the lid down in the default settings on battery power. This leads to severe ...
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vote
1answer
487 views

Macbook pro disable charging when connected to external monitor via thunderbolt 3 port

I can connect external monitor to macbook via type C port. But the battery starts charging when I do so. This causes the laptop to always be charged at 100% (which is not good for battery life) How ...
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0answers
22 views

Can I add a jumper from charger to battery in a MacBook pro 2012 that is not charging?

The proposed solution to a non charging MacBook. Will this work? Add a jumper from charger to battery, this is to bypass current sensing circuitry and SMC. All, or some of which may be the root cause ...