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

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69 views

Can I replace my old model MBA battery with a 54-watt-hour lithium-polymer battery (12 hrs) for the newest model MBA?

I have a A1304 MBA and need to replace the battery with a new one. I was considering to install a 54-watt-hour lithium-polymer battery (12 hours battery life) for the newest model MBA. Is it ...
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2answers
379 views

Battery charge suddenly drops to 0% even when plugged into mains (Mid 2009 15″ MacBook Pro)

My mid-2009 15″ MacBook Pro (A1286) has developed a nasty habit in the last couple of days. It suddenly discharges its entire battery without warning, and won't start until it's had about 10 minutes ...
2
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3answers
839 views

Will not using battery in MacBook make it last longer?

If I don't use my MacBook on a battery, does it mean that it will last longer? I heard that when you have normal notebook from HP, Asus, Dell, Acer.... no matter if you use the notebook on battery or ...
2
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2answers
343 views

5 minute battery life

I have a Late 2011 Mac Book Pro 15" and recently the battery has very quickly gone from several hours of battery life to all of a sudden only apparently having 5-10 minutes and by quickly I mean ...
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1answer
129 views

MacBook Battery charging

I recently bought a replacement battery for my MacBook battery. In Coconut Battery the Current charge has been as high as 8000 mah, yet the maximum capacity is listed as 6100. When the battery icon ...
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2answers
179 views

Keeping battery charged at certain level

I keep my MBA 2013 plugged in most of the time. AFAIK for a long term it is better to keep modern battery around 40%. I have seen that some other laptop manufacturers added feature to their drivers to ...
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1answer
94 views

does these battery stats are reasonable for rMBP? (max charge 98% after 25 full cycles)

I have my rMBP for 14 months, during the first month I barly used it and it was off most of the time. today I'm connecting it to a display (unfortunately the fonts are blurry!) and the lid is closed ...
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1answer
413 views

iPhone 4S iOS 7 Battery Drain

I have an iPhone 4S with iOS 7.0. Since the upgrade, my battery drains twice as fast. I have applied all the battery saving tips available on the internet (e.g. ...
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1answer
4k views

Does Battery Usage/Percentage need to be calibrated again?

I recently installed iOS 7 on an iPhone 4S. Does the Battery Usage/Percentage (as shown in the top-right corner of the screen of the phone) need to be calibrated again (by letting the battery fully ...
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0answers
196 views

Has anyone had troubles with an iPhone 4's battery life failing after upgrading from iOS 6 to iOS 7?

After I upgraded my iPhone 4 from iOS 6 to 7, I have experienced my phone running out of power before the end of the day on a night charge (I know it's easy to run a full charge down during the day if ...
2
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1answer
146 views

How the low battery message graphic is loaded?

When your iPhone battery is "almost" dead, it turn off, and then if you want to turn it on again it loads this very informative graphic: The problem is that when you turn on "power button" this ...
2
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1answer
84 views

Unsold iPhones & Battery Life

There is a lot unsold iPhones 4s on the Apple Store. According to the "About iPhone Batteries", iPhone's battery should be regularly charged. But in case that the battery is not charge after the ...
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2answers
4k views

What's the difference between the battery of iPhone 5s vs iPhone 5?

Do they have the same capacity and/or run time for certain identical tasks? I know iPhone 5's battery has a charge capacity of 1440mAh. Has this been improved in the new iPhone 5s and/or iPhone 5c?
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1answer
705 views

Macbook air 13 2013 in battery drain issue

This is the second time that battery is causing issue. Initially after I bought I gave it to apple service and they reinstalled OS and suggested VirtualBox was causing the drain so I did not install ...
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1answer
22k views

How can I assess the health of my iPhone 5 battery?

I suspect my iPhone's battery is now much worse than it used to be. How can I assess this? Is there some kind of test I can make, to compare it with Industry average? How long can I reproduce a ...
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2answers
141 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?
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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 ...
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1answer
177 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 ...
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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: ...
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0answers
204 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 ...
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2answers
670 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
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2answers
67 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
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1answer
115 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 ...
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3answers
157 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 ...
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0answers
174 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 ...
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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 ...
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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 ...
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1answer
375 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
935 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 ...
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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
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1answer
299 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 ...
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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. ...
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4answers
527 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 ...
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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
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0answers
294 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
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1answer
97 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: ...
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4answers
973 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
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1answer
80 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 ...
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1answer
161 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
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2answers
578 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 ...
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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 ...
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0answers
60 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 ...
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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
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1answer
294 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 ...
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0answers
79 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 ...
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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. ...
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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
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1answer
849 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
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1answer
253 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?