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

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10 views

How can I determine the battery impact of using scaled resolutions on my MB Pro Retina?

(My machine is a stock mid-2014 MB Pro Retina 13") I noticed a definitive drop in how long my battery lasts when I switched to the largest resolution available (to have more space to work with) ...
0
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0answers
6 views

How to disable SpeedStep/XCPM on Macbook Pro 11,1 OSX 10.10.2?

Does anybody know how to disable OSX from throttling/underclocking the CPU on a Macbook when the battery gets low on power? I think the feature is called SpeedStep. The problem is that my battery is ...
3
votes
2answers
59 views

Bulge in MacBook Pro near Hard drive

I have noticed in that past 24 hours that two rigid and straight "lines" have developed as bulges on my Mid 2010 MacBook Pro 15 inch. They are noticeable when looking at it in the light and you can ...
20
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7answers
30k views

How do I debug an out-of-control “kernel_task” process?

Just recently I noticed my battery life having a pretty significant drop and the "kernel_task" process using quite a bit of CPU (a constant 1-6% on my 2.8ghz dual-core i7, 2010 MBP). Obviously I think ...
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0answers
8 views

Dropbox drains battery, what can I do?

I have a 13" retina macbook pro, and I recently noticed, that dropbox started using up a lot of my battery, with an average use of about 16 (units in the activity monitor). It has probably been a ...
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1answer
15 views

MBP 15" early 2011 shuts down after login without power cord

Update #1: I uninstalled gfxcardstatus. Now the only times it shuts down instantly are when I initially log in (tried on user with Filevault and one without), and when I log out from one user ...
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0answers
33 views

iPhone 5S 8.4 JB fast battery drain. Tried everything

So, I tried to fix battery drain on 8.3 and deleted a lot of tweaks. I saw that locationd stay in memory more than 5 hours ("top -o time"), etc. Then I restore to 8.4 and installed only "must-have" ...
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1answer
8 views

How to maximise the life of the Apple battery charger set (for Magic Mouse) batteries?

I purchased a magic mouse battery charger set today. It had a battery charger and 6 batteries. Now I put 2 batteries into the magic mouse and 4 batteries are in the box. My question is how to maximise ...
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0answers
6 views

As a new Swift/Xcode user, I want to setup a Playground to fetch the battery status of my macbook

As a new Swift/Xcode user, I want to setup a Playground to fetch the battery status of my macbook. I have already tried the following: import Cocoa import IOKit import Foundation var blob = ...
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1answer
9 views

Best practices for storing a replacement battery?

My early 2011 MBP has been giving me the "Replace Soon" battery warning, and an app I have says that the battery can hold 57% of its original capacity. I bought a new one on Amazon, but now I've ...
5
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2answers
1k views

iPhone 5 Battery - Help me diagnose issue

I'm having a weird issue with my iPhone 5, that I think is related to the battery, but might be something else. Symptoms The battery indicator is wrong. It sticks to the value it fetches when ...
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3answers
35 views

MacBook Pro 13" Retina 2015 for development [on hold]

I'm buying new laptop for approximately 1500 € (or $, doesn't matter). I have already looked at other laptops then MBP, but I don't think I will buy one because of the problems I experienced in recent ...
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1answer
14 views

What are your tips for finding a replacement battery for mac book pro? [on hold]

The battery on my mac book pro (late 2008) running OS X Yosemite needs to be replaced. The battery only holds half capacity. What are your tips for finding a good battery. What battery do you ...
0
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0answers
15 views

Are location-sensitive reminders bad for battery life and/or data usage?

If I understand iOS's location-aware reminders correctly, they work by constantly checking your location until they see that you're in the specified range. Wouldn't this be really detrimental to the ...
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4answers
17k views

Why is my iPhone 5S overheating so much?

Activities such as: Phone Calls that last around 10 minutes 3G Browsing for 5 - 7 minutes Watching videos for 5 minutes Using apps such as facebook / instagram etc for 5 - 7 minutes, lead to my ...
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1answer
2k views

iPhone: What is `accountsd` and why is it using 80% CPU?

I just got a new iPhone 6 for my SO and noticed that it is quite toasty to handle with the battery draining quite fast. It has been 24 hours since I first set it up. I plugged it into Instruments ...
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1answer
27 views

What is this infrared light on my iPhone 4 and how do I turn it off?

This is a picture of my iPhone 4 that I just took with an infrared-capable camera. As you can see, there is a light on top, around the middle. You can only see it with with an infrared-enabled camera, ...
3
votes
2answers
27 views

Don't charge iphone when plugged into macbook?

Is it possible to temporarily keep your iPhone from draining the macbook battery? When I'm out and about I sometimes want to connect my [nearly empty] macbook to my [not so empty] iphone so I can ...
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0answers
12 views

Disable cellular radio on iPad when sleeping?

I want to save battery and not be logged in CDRs when my iPad is idle (besides, I have two phones that are online constantly so I am already notified when I receive mail or other updates), hence I ...
2
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3answers
9k views

My MacBook Pro is not sleeping when I close the lid on battery

I purchased my macbook back in 2011, and this problem just started. When I unplug and close my computer to put it in my backpack for school, it does not sleep. I take it out and its very hot and has ...
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0answers
841 views

Iphone 5 Panic IPS After Changing battery

First I will like to say sorry for my English that it’s not the best In the world. I have a problem with my Iphone 5, its all begin in the moment that I put my phone to charge after that I realize ...
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1answer
31 views

Should I just snap this metal bit off my iPhone 5?

I'm trying to replace my iPhone 5 battery, but there's this one stupid stripped screw that won't come out of the bottom metal battery cover. Would it be a bad idea to just cut that metal cover off, ...
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0answers
15 views

How to configure the battery percentage at which the mac will hibernate

I've replaced my macbook pro battery with a non-official one and since the battery lasts a few hours less that the original one did at first (6h < 9h) when my battery starts running out at 1% ...
0
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1answer
24 views

OS X slow, battery showing 0% after reboot which was likely caused by graphics issue [closed]

For the last month or so, I've been getting small horizontal bars flickering on the screen which would suggest a graphics card issue. The flicker was always small and would go away when focusing on a ...
0
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0answers
18 views

How do I determine the last time a Macbook's battery has been drained to zero?

Apple recommends to completely drain one's Macbook battery once a month. After a full drain, Apple recommends to leave the Macbook off for at least five hours, which ensures that the battery drains to ...
2
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1answer
49 views

Samsung Galaxy 6 sets off Apple Pay on iPhone 6

I have to carry two phones - one Samsung Galaxy 6 and one iPhone 6. Unfortunately, something in the Galaxy sets off the Apple Pay on the iPhone when they're in the same pocket, and it constantly shows ...
3
votes
1answer
233 views

How can I obtain app energy impact data from the command line or applescript?

Does anyone know how to access the "Energy Impact" data used to determine "Apps Using Significant Energy" displayed in the battery menu bar? I'd like to use it in a shell-script/applescript.
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0answers
15 views

0% Battery, and not charging again

My battery died last night, and since then the MacBook Pro (2012) is not charging. Any ideas (except for take it to an Apple store, which I cannot for a couple of hours)?
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1answer
30 views

MacBook unibody 2010 will not charge reliably

I have a 2010 MacBook unibody (the white one, not the Pro) and I have been having all sorts of trouble with it. While I have most of the other problems figured out, there is one that keep persisting ...
1
vote
1answer
35 views

Macbook Air 2008 won't boot after error message asking to shut down due to low battery

Yesterday my Macbook Air (original), model: a1237 flashed an error message asking the user to shutdown due to low battery. Since it was not me, but my brother who was operating the macbook at that ...
0
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0answers
34 views

iPhone 5 only charges with third party car charger

After last night my iPhone would detect that the phone was plugged in to a wall or laptop but would not actually charge. I tried updating to iOS8 and cleaned the port with a toothbrush and a paper ...
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4answers
21k views

iPhone 5S gets very hot and drains battery

My iPhone 5S is getting very hot and the battery drains like 5 % in 30 seconds. I've tried it all, restoring and stuff and I've read that the problem is with iCloud. So I've deleted my iCloud account ...
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4answers
16k views

Checking the health of my iPhone's battery

It seems that my iPhone's (4s - purchased Nov. 2011) battery loses its charge fast. I have read all the relevant OPs. Is there any app which provides information about the battery's health? Or ...
1
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2answers
5k views

Swollen/pregnant battery on a MacBook (13" aluminium late-2008)

The battery in my late-2008 model aluminium 13" MacBook became extremely swollen in early to mid-2012 after only 283 cycles (as per Cycle count under Hardware → Power), and the button on the ...
3
votes
5answers
4k views

Macbook Air - battery drains while sleeping (but not when shut down)

My macbook air (13-inch, mid 2011) battery drains from ~100% to ~85% over night. The problem only started a few months ago. I'm currently running yosemite, but the problem started while on ...
2
votes
2answers
516 views

2008 MacBook (A1181) won't boot from battery

I have a 2008 13" (2.4GHz) white MacBook that will only boot from mains power. If you attempt to boot from the battery it's as if it's not even connected. Once you get even past the initial startup ...
3
votes
1answer
19k views

iPad won't turn on after a complete battery drain

I forgot to plug in my iPad after the critical battery warning and it went some minutes following the warning. I was not worried because same thing had happened a few times before and iPad was ...
0
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1answer
125 views

How to preserve MacbookPro battery from degradation? [duplicate]

Platform: OS X: Yosemite 10.10.4; MacbookPro 15" Retina (mid-2015). Fact: There is aging for battery in any case - using or not. But while using - there is difference of how to use. My questions - in ...
3
votes
0answers
47 views

Macbook Pro Retina “Battery Is Not Charging”

My retina macbook pro is currently on 4% but when I plug it in the battery icon up the top shows the plug icon instead of the lightning bolt icon inside it to say it's charging and stays on the same ...
0
votes
1answer
98 views

Macbook Air restart and kernel panic issues

My Macbook Air 13 running Yosemite 10.10.3 inch doesn't resume from sleep always. Also, there is a 'No batteries Available' sign frequently and a cross (X) on the battery icon. Also, it doesn't ...
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1answer
59 views

iPod - How to display the battery remaining as a percentage? [duplicate]

How can I display the remaining battery power as a percentage on an iPod Touch 5.
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1answer
1k views

Why is my iPhone 5S battery draining overnight and very quickly?

A few days ago I was charging my phone in my car and it stopped charging, and I noticed that the cord had a little hole and smoke was coming out of there. I was buying some food from a local shop, and ...
1
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6answers
2k views

Iphone 4S 8.1.1 Battery Problem

What else can I do to make my iPhone 4S work for as long as possible? I have done all the "standard" battery saving techniques recommended on most sites, like: turn off background app refresh, ...
3
votes
2answers
9k views

Old iPad not charging after no use for a year

I have an old iPad and want to give it to a friend. I plugged it in with a new lead that charges another 1st gen iPad I have, but it's not coming on. It's not been used for about a year. It's been ...
0
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0answers
30 views

MagSafe light turns out orange after few seconds

Is it normal for MagSafe to have orange light (not directly to be green light) 3-4 seconds after plugged to outlet ? I'm a bit nervous with this matter as I've just bought a new mbp after my ...
0
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0answers
29 views

My Ipod 5th Gen won't turn on

I have an Ipod touch 5th gen and i use a cheap £1 charger to charge it up, but recently my Ipod ran out of battery so i plugged it in using the charger and my Ipod was completely unresponsive, i tried ...
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0answers
8 views

Low battery notification only at < 5%

I have the latest MBP retina 15", it is normal that it informs me of the low battery level at such low percentage? Since this percentage changes every time I think is more something related to the ...
0
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1answer
20 views

Change battery from MacBook Pro to white MacBook

Is it possible put the battery from the MacBook Pro 13″ (2009-2012) to the white MacBook (2009)? Are they same or not and which gives me more battery life?
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3answers
5k views

Is there an iOS app that measures/reports the battery charging current?

I suspect my fake lightening cable charge my iPhone 5 much slower than my original lightening cable on the same charger. Is there an app that will display the current battery draw/charging current and ...
0
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0answers
22 views

Mac Air battery replaced, recognized, but not charging

So I attempted to replace my Mac Air battery myself. Swapped it out just fine, screwed things all back in place. Problems: It's recognizing the battery in the System Preferences>Power display, but ...