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

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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) ...
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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 ...
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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 ...
3
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2answers
58 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 ...
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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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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 ...
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3answers
33 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 ...
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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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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, ...
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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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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 ...
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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% ...
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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 ...
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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 ...
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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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0answers
33 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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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 ...
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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 ...
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1answer
123 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 ...
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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 ...
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1answer
97 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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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 ...
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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 ...
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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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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 ...
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0answers
6 views

change backgrounds on charge, pause on battery

Is there any way I could change my background when it is on charge, and pause when it is on battery? (using the preset 5,10,15, etc interval per background when on charge) I have tons of ...
0
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1answer
51 views

iPad Discharged and not charging

My iPad was in good health when it was used last. That was about 8 month ago. Now it wont come on and on connecting it to the charger, the low battery sign comes on with the 3 red stripes. That's all ...
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43 views

Only sleep MacBook Air when lid is closed

I have the following power management settings defined for my MacBook Air. Shantanus-MacBook-Air:~ shantanutomar$ pmset -g Active Profiles: Battery Power -1* AC Power -1 Currently in ...
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0answers
20 views

Device to measure power available from charging point [closed]

I know that anything that you plug a lightning cable into will charge an i-device at SOME rate. But that rate varies wildly, depending on the original source of the power (real apple mains converter, ...
0
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1answer
35 views

Battery problems on MacBook Air

I have a 13" mid-2012 MBA, which runs fine except one thing: in the past year the original battery started to deplete its charge quickly and now only holds about 50% of the original capacity. So I ...
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1answer
39 views

iPad mini must be plugged in to turn on even if battery is fully charged

When I press the button to turn on the iPad mini it is asking to be plugged in despite the fact the battery is fully charged. Once plugged in for a few seconds I can remove the plug and the iPad mini ...
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0answers
23 views

iPad shows Not Charging but does charge

My iPad 2 says "Not Charging", but it is charging. It's been acting odd for about 5 months. Operating system problems. Screen goes blank, apple icon flashes. I've done 10+ restarts, restore, and ...
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1answer
37 views

Macbook pro Battery Question

Is it normal for the maximum mAH to fluctuate by 100's from time to time for a 2012 macbook pro?
1
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1answer
31 views

New Battery for my Vintage MacBook

I need a new Battery for my late 2008 MacBook but Apple consider it as Vintage so stopped producing it. I searched my new battery on eBay and I've found two alternatives at, more or less, the same ...
2
votes
3answers
40 views

Looking for a way to mimic the battery-saving behavior of closing the lid without actually doing so

I'm looking for a way to keep the lid up, yet tell my Macbook Pro Late 2013 to do what it would do if the lid was actually closed. When I close the lid, the battery lasts for a long time, not so when ...
1
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1answer
60 views

Is there an easy fix for an old iPhone 5s battery?

I have had my iPhone 5s for almost two years now, and the battery has been dying quickly. For example, even when my phone is on airplane mode, it will drop from 90% charged to 85% charged within two ...
0
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1answer
32 views

Best practice to maintain high charge count [duplicate]

I have a MacBook Pro, always plugged, I put it to sleep during the night. Is that the best thing to do if I want to maintain a high number of remaining charges, while also keeping a healthy battery? ...
2
votes
1answer
574 views

How can I keep my Apple Watch from draining my iPhone's battery?

I used to have to charge my iPhone 5s just once a day, over night. Now that I'm using an Apple Watch, I find that I have to charge my phone 3 or 4 times because my battery is draining. I'm not using ...
2
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2answers
475 views

Apple MacBook Pro Battery vs Processor

I'm configuring a new MacBook Pro 15″ 2015 and wanted to know if the processor speed affects the battery life? 2.5GHz Quad-core Intel Core i7, Turbo Boost up to 3.7GHz 2.8GHz Quad-core Intel Core ...
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0answers
18 views

MBP not charging despite SMC reset

Late 2008 Macbook pro4,1, "Battery not Charging", steady green led. Battery seems fine, and is after market but won't charge. It worked well a week ago before not being used over the long weekend. ...
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1answer
230 views

MacBook shut down at 20% battery with no warning?

My 2013 13" MacBook Retina (OS X 10.10.3, Yosemite) shuts down when I have about 20 minutes of battery left. Not sleep, full shut down. It does this with no warning at all. I seem to remember ...
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2answers
28 views

What specifications does my iPhone 5c require to charge?

I'm looking into portable battery packs and I was looking into the electrical specifications of the pack. This got be thinking what current and voltage does my 5c need to charge?