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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1answer
30 views

Macbook battery bar showing as red; battery % jumps around; battery condition normal; out of US charging

I've been in Europe since 7/5. I've been charging my 2015 macbook pro (purchased in the US) in the UK from 7/5-7/11 and in Italy from 7/11-current. I use a power adapter (not a converter) since the US ...
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2answers
14 views

Suggestions for a safe-n-fast charger for a bunch of 6th gen iPod Touch Devices?

I have about 30 iPod touch devices that connect to a charger with multiple ports on it. There are 4x 5V/2.4A ports and 4x 5V/1A ports on the device that charges them. It seems as though the the 5V/...
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0answers
16 views

iPad Mini 2 - Not Charging After Drained

My iPad Mini 2 won't turn on anymore after it drained even when i'm plugging in the charger it will just show (see image) then turn off again.. Before this case happened my 10W apple charger suddenly ...
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41 views

Standard charger for Macbook Pro insufficient

I recently bought a MacBook Pro (15-inch, 2018) and I am using the OOTB Power Adaptor (87W) and USB-C cable. I am finding that when I run computationally expensive processes (e.g. I utilize multiple ...
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1answer
21 views

MacBook Pro goes into hibernation immediately after login, how do I fix this?

My Mid 2012 MacBook Pro, goes into hibernation immediately after logging in. Battery indicator still shows around 95% charges when it does that. When I plug in and reboot, battery shows 0%. This does ...
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0answers
20 views

Fully charged 2015 MacBook Air shuts down instantly when disconnected from power

My father is using an Early 2015 MacBook Air (i5 Dual-core, 128GB SSD, 4GB RAM). He's been using it without any problem since the day he bought it, until it started turning off instantly the minute he ...
2
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1answer
70 views

MacBook Pro 2018 battery drain with lid closed, wakes every 2 hours

My MacBook Pro 15" 2018, running macOS Mojave 10.14.5, is losing about 10% battery overnight, despite the lid being closed. Here is the output of pmset -g log, from the time I closed the lid yesterday ...
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2answers
56 views

How can I ensure that laptop batteries I buy are genuine?

I need new batteries for my for MBP 2012 8.1 13". I ran across a site selling what seems to be actual new Apple batteries. Is this a scam? I would like to buy a real Apple product, so how can I be ...
2
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2answers
114 views

When using a USB-C monitor with power delivery, does constantly having it plugged in damage the battery?

By my assumption, the USB-C port on the monitor will charge the device even on full charge. Is this correct? I believe this would damage the battery over long periods of time.
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17 views

2018 MacBook Pro Won't Charge or Boot

I used my MacBook Pro today and ran the battery down to almost zero before closing the lid and heading home to charge it. But when I plugged it in back home, it wasn't responding to being plugged in ...
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0answers
16 views

Replaced battery won't charge (macbook pro 2015 model)

My MBP battery got swollen and replaced it with the new one. Everything is connected properly, battery is detected but it doesn't hold the charge (laptop shuts down immediately after unplugging the ...
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1answer
25 views

Getting songs from iPod classic with low battery

My parents were digging through some stuff looking for something and found an old, classic iPod. I'd like to get the music off of it (I use a small mp3 player, so ideally I'd just take the music off ...
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2answers
40 views

Mac Air (2015) keeps shutting off immediately after being unplugged from charger

My air which is 4 years old now keeps shutting off immediately if it gets disconnected from the charger. It won't even turn on if it's not plugged in. It started happening about a month ago randomly, ...
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2answers
40 views

MacBook without battery kernel_task 100% CPU utilization

After removing the battery from a MacBook late 2009 following a battery fault, the computer always runs kernel_task at 100% CPU utilization. I assume the process ends up in some kind of spin lock when ...
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0answers
33 views

iPhone 5 issues while charging

When charging my iPhone 5 while it's switched off, the charging indicator does not disappear (or go to Sleep) and is therefore visible the whole time. And, when charging my iPhone 5 while it's not ...
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1answer
49 views

Do battery strips prevent an iPhone's power from cutting out?

I have an iPhone SE. I wanted to get a new battery. I made the mistake of taking it to a non-Apple vendor. They broke my iPhone and I wonder what role the battery strips (missing from my iPhone) play. ...
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0answers
19 views

iPad 4 mini not charging

The other night I plugged my iPad mini 4 into my regular charging plug (that I've used consistently for 2 years and worked great) and it wouldn't charge. I went to other iPad/iPhone chargers I have in ...
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1answer
26 views

MacBook Pro: Battery icon shows as charging even when not connected to power source

I have a 13" 2017 MacBook Pro no Touch Bar model. It is not connected to a power source but it still shows as charging. While this is not affecting my Mac's performance or anything, but now I don't ...
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0answers
33 views

iPhone 7 Plus battery stops charging at 6%

I have replaced my battery 2 times. The original one died. the new one cannot be charged past 3%. I thought battery was faulty, so I returned it and got a replacement. Today I installed the new one, ...
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0answers
35 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 ...
2
votes
1answer
67 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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1answer
49 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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0answers
22 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
17 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
22 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 ...
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2answers
45 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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0answers
29 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 ...
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1answer
28 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 ...
3
votes
3answers
89 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
29 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
33 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
19 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
36 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
126 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 ...
1
vote
1answer
24 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
56 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
55 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
43 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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0answers
23 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
63 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
45 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
48 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
130 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
1k 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
156 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
votes
2answers
110 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 ...
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1answer
46 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
45 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 ...