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

learn more… | top users | synonyms (1)

1
vote
2answers
136 views

Are there configurable power profiles in Mountain Lion like in Windows?

I started using a Mac few days ago (a MacBook Pro 13" with Mountain Lion). I'm wondering if there are power profiles that I can create and set like in Windows. Do they exist in the Mac world?
2
votes
2answers
4k 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 ...
0
votes
1answer
171 views

ipod touch 4th gen doesn't turn on

My ipod touch 4th gen has this CYDIA, I accidentally uninstalled one file from it. After that, the ipod crashed and never turned on since then. It turns on (showing apple logo) for 10 seconds, then ...
0
votes
2answers
1k views

I'm wondering if my 13 inch MacBook Air is having battery issues?

This is my current battery information. Could someone please let me know if I need a new battery or what might be wrong with it? Battery Information: Model Information: Serial Number: ...
0
votes
0answers
200 views

How do I get my MacBook to charge?

I have an older MacBook - not the aluminium unibody, the white one. Bought in the US. All of a sudden it has stopped accepting the charge. Once I plugin the MagSafe connector it goes to green ...
1
vote
2answers
650 views

How to reduce MacBook Air 2013 1.7GHz CPU power consumption?

I'm seeking a way to reduce MacBook Air 2013 1.7GHz CPU power consumption -- or any MacBook for that matter -- to save battery life. I want to vary the CPU power consumption variably, so that I can ...
0
votes
2answers
65 views

How is the battery life on the new iPod Touch G5s?

I had an iPod Touch G4 and the battery life was terrible. Has there been any improvement in this area with the G5s?
4
votes
1answer
114 views

Is battery life supposed to go not even a year?

I have a MacBook pro that I got about 10 months ago. It seems like I am already starting to experience battery life issues. I have a charge cycle history of less than once a day since I bought it. I ...
7
votes
3answers
149 views

Event based on battery charge level

I haven't found anything yet so I was hoping maybe someone here had an idea. I want to kick off an even based on battery on an Apple laptop reaching a certain charge level, or when the battery is ...
0
votes
0answers
165 views

New battery stops charging around 85%

I have a 17" MBP for about three years and couple of days ago I changed the battery with a new one in an Apple store. The problem is, charging stops at 87%, the charger led remains orange and ...
2
votes
1answer
4k views

Does the MacBook battery cycle count reset when replacing a battery

I've been reading up on battery cycle counts and checked out my current count on my MacBook (13-inch, Aluminum, Late 2008) - recommended maximum cycle count is 500. I've had this laptop now for over ...
0
votes
4answers
2k views

How long should it take to charge up a new iPhone

I just got a new 64 GB iPhone 5. I left it connected to my MacBook Pro all night last night via the USB cable. It's only about 85 percent charged. Is that normal? Seems like it should be charged up ...
1
vote
1answer
364 views

Retina Mac shows gray screen when waking up

This is the first time that my Retina MacBook Pro wakes up from sleep with a gray screen. After about 10-20 seconds, the MacBook falls asleep again. Some points that might be relevant: The only ...
2
votes
2answers
850 views

Macbook Pro Mid-2010 15" is not charging with dim green light

I have spilled a bit of water on the keyboard of my Macbook Pro this Monday. It continued working just fine. So, I took it home, and 2h later, when I pluged the charger in, the light turned into a ...
1
vote
2answers
2k views

MacBook Air 2013 battery drained by Dropbox

I just bought the new MacBook Air 13" (2013) and am experiencing dramatic battery loss when using Dropbox and a few other apps. While that is a well know issue with Dropbox, I wonder if there is a ...
2
votes
3answers
4k views

Out of warranty MBP ,Burned Magsafe port and frayed charger cable - repair option and cost?

I have a MBP 15" 2011 model and has is the burned magsafe port (leftmost pin melted) which i noticed today. The connector gets too hot sometimes ( but remains ok when I charge in sleep mode). ...
1
vote
1answer
284 views

Can I power on my old MacBook with a no-lights battery?

I've let my MacBook's battery go far too long past its life because it lives at a desk and never moves. It's a MacBook Pro 4,1. On MacBook Pro 3, i was always able to boot without battery, but this ...
0
votes
1answer
1k views

Battery indicator is showing “Service Battery” notification

I upgraded my macbook RAM, but after that when I switched on my MAC it showed my "Service Battery" indicator in battery menu. I installed Battery Health application and it showed following stats. ...
0
votes
4answers
507 views

Macbook Air power saving with Thunderbolt to Gigabit adapter

I am considering buying a Thunderbolt to Gigabit adapter to save my MBA power consumption as I can shutdown the Wifi, assume it use a lot of power. Anyone tried before and it works? How many % of ...
1
vote
3answers
1k views

my macbook battery drains within 1 to 2 hours

i have a 17" macbook pro, purchased december 2011 — so it’s 18-months old. OS X version 10.8.4 recently i noticed the battery doesn’t hold its charge very long. this may have been occurring for a ...
2
votes
0answers
286 views

How much will upgraded processor and RAM affect battery life?

I'm considering purchasing a new Macbook Air, and one of my main goals would be to maximize battery life. If I upgrade the standard processor (from 1.3GHz Dual-Core Intel Core i5 to 1.7GHz Dual-Core ...
0
votes
1answer
96 views

Mac Book Pro 2013 battery

I got a new Mac Book Pro, (not retina) and the battery indicator is only showing 98%. Is this something of concern? I have found this: ...
0
votes
4answers
918 views

iPhone 3GS turning off randomly while being used

While using the phone it randomly shuts down. And when I turn it back on battery drains by about 3 or 4 percent. Could this be a battery problem or a sign to another major problem? So the only way I ...
0
votes
1answer
79 views

Iphone 4s turns it self off

it started today and happened twice, my iPhone turns it self off even battery has %15-17 charge, i cant open it, empty battery sign appears when i plug it to charge, it begins to charge from %15-17, i ...
0
votes
1answer
158 views

Very high MacBook Battery consumption on Sleep

I got an alleged trouble on my late 2008 Unibody MacBook. I've never worried about this trouble because I thought that was a normal thing but I'm start thinking that it could be a trouble trouble. My ...
3
votes
2answers
563 views

Does Avast noticeably affect battery life?

I am thinking about installing the free Avast anti-virus software on my MacBook Air (2012). Once Avast has completed its first scan of all of the files, does its continued operation noticeably affect ...
0
votes
0answers
2k views

iOS & iCloud: Broken iCloud data causes kbd process to crash constantly and drains battery

On Stackoverflow I was told to come here. Since a few days ago my iPhone 5 is getting unusually warm and the battery drains REALLY quick, like in 4-5 hours. I tried turning all the usual suspecty off ...
1
vote
0answers
59 views

i have changed my Iphone 3g battery but it stucks on 61%

Hey guys did a search and couldnt find anything that really suited my situation. I recently changed my iphone battery, The Phone turns on and the battery decrease imediately its decrease 1% with in 10 ...
1
vote
1answer
3k views

iPhone 4s overheating and suffering from drained battery

So I have this iPhone 4s, which has a serious problem: when doing absolutely nothing with it (it just sits in standby mode) the battery drains from 100% to 0% in about 12 hours or less. Also, it ...
2
votes
1answer
270 views

Any danger to letting a MacBook stay on the charger long-term? [duplicate]

I came into possession of a 2009 13" MacBook Pro. Most of the time, it will be used as a desktop computer - but there will be instances when I will need the 5 hour battery. Is there any danger to ...
1
vote
0answers
77 views

iPhone 5 battery unused for 2 month

I would like to know if there is a risk for my iPhone 5 battery after remaining 2 months unused and uncharged. I'm going to re-use my iPhone, and I wonder if it stills usable for daily uses. Any ...
-1
votes
1answer
79 views

different MacBook battery models since 2008?

I am wondering if Apple changed the form factor of their MacBook (Pro) batteries since Early 2008? I was planning to replace my broken MacBook Mid 2010 Unibody with a used MacBook Pro from early 2008. ...
0
votes
1answer
203 views

Do apps placed in the background consume resources? [duplicate]

I've heard that leaving open apps on an iPhone, affects the duration of the battery's charge. Is this true and documented, or some of an urban legend? And does it affects other apps' performance?
3
votes
1answer
805 views

Dilemma about replacing the battery in my 17" MacBook Pro mid-2010

After 3 years my mid-2010 17" MBP model is telling me it's time to replace the battery. The current one (model A1309, FWIW) has had ~1000 cycles now and can't hold the charge reliably anymore. Being ...
0
votes
1answer
250 views

Macbook Air 1,1 power consumption

I have the original MBA, and I have extremely high power consumption - see the screenshot (screenshot got while TextEdit only was running) Is is normal for original MBA?
8
votes
5answers
2k views

How to disable battery charging?

From the pmset man page: POWER SOURCE ARGUMENTS -g with a 'batt' or 'ps' argument will show the state of all attached power sources. […] Certain Apple battery calibration tools may ...
1
vote
1answer
138 views

iPad adjusts brightness when it reaches full charge

I recently put some iPads up around my office building as conferance room markers. They're plugged in to USB outlets, and seem to be charging fine. The screen stays on all the time, running ...
8
votes
2answers
18k views

Does the Apple Genius Bar replace Macbook Air battery on site?

I called Apple's toll free number but wasn't able to get a clear answer from them. My 2011 MacBook Air's battery is dying and I would like to have it replaced. The only problem is that I am ...
1
vote
1answer
83 views

Charge cycles increase?

This is a bit weird, I've been doing everything to keep the battery health great and that's what i achieved so far. it's going through 99-100%, but the thing is.. those charging cycles thing are ...
2
votes
1answer
3k views

How to check if MacBook battery is genuine?

My white MacBook's battery has completely died, so I'm looking for a replacement. It costs $150 from Apple, or about $70 for allegedly genuine Apple batteries on eBay: I'm leaning toward this ...
1
vote
1answer
11k views

iPhone 4S - sudden drop in battery percentage

I've bought a half-year-old iPhone 4S a couple of weeks ago and I just ran into a really weird issue the third time now: the battery percentage would suddenly drop 30-40-50%. One minute, it's, say, ...
0
votes
1answer
113 views

Utility to warn when process takes 100% CPU for x minutes?

I run on battery a lot and occasionally a process/app will crash in the background and start sucking up 100% of one or more cores. That in turn burns my battery down way faster than normal. I used ...
0
votes
1answer
73 views

MBP first generation Service Battery

My MacBook Pro is throwing me a message "Service Battery" and coconutBattery tells me I have 4007 mAh instead of 5450 mAh. Is there a way to pump it back up or is that impossible? I was looking ...
1
vote
1answer
689 views

An ipad app or setting that helps turn off wifi or turn on airplane mode on schedule?

i hope to conserve battery at night. is there an ipad app or setting that helps turn off wifi or turn on airplane mode at certain time? or would it even be better to have an app that turns off the ...
3
votes
2answers
1k views

Does iPad battery charging utility like Battery Boost Magic pro really make a difference in prolonging iPad's battery life?

Do battery charging utilities such as Battery Boost Magic pro or Kingsoft battery doctor really make a difference in prolonging the life of an iPad battery?
-1
votes
2answers
108 views

Can i remove MacBook battery when Mac is still running? [closed]

If my MacBook is running, can i remove battery and later put it back?
2
votes
3answers
9k views

iPhone 4S with latest update now charges very slowly

My iPhone 4S (iOS 6.1.x) dropped it's charge today. It now is charging very slowly. I deleted my iCloud account to see if that would improve battery life. It still is charging slowly, and has taken ...
2
votes
2answers
2k views

iPad boot loop only when powered - brief flash loop when connected to USB - jailbreak gone awry?

Received an iPad from a customer in an unknown state. Report was "does not power on". Device is out of warranty. It's the 1st generation iPad with a 3G chip. Symptoms: when connected to power only, ...
1
vote
1answer
324 views

My new MBP Retina needs to be recharged after 2 1/2 hours

I got my 13" retina MBP a few weeks ago, and used it quite a lot since then. However I noticed that battery drains incredibly quickly, I'm asked to recharge it after 2 1/2 hours of usage. I'm using ...
-1
votes
1answer
489 views

Disabling Hibernation AND DeepSleep mode on Retina Macbook Pro reduce battery life?

I am currently on 90%, HDMI connected to 2nd monitor, about 5-6 links open in Safari, terminal running (coding on python), Stickies, Messages, and Mail are running. My battery has 2h of remaining ...