MacBook Pro :: Battery Draining While Plugged In And Idle?
Mar 9, 2012
This morning I set to work on my laptop as usual. I typically leave it plugged in while not moving around, and today was no exception. I h ave a 15" macbook I purchased in December of 2010, and it's currently running OS X 10.6.8, if that makes a difference.
Anyhow, when I started up my Macbook and set to work, the battery was fully charged (indicator read that it was fully charge, and that the power source was the power adapter). The power adapter light was green. I then stood up and did some work for roughly 2 hours away from the laptop. When Ieft, I put the display to sleep - In the background the machine was still running a webbrowser (reading an all-text page) and preview (a PDF was open). This is nothing out of the oridinary, and I do it all the time usually.
What was unusual was when I returned to my machine after 2 hours of idling (with the display asleep) to find that my battery had been almost completely drained. The power adapter light was now orange, and the indicator showed that the battery was only 4% charged. The power source was still displayed as the power adapter.
I understand that during intense processses the Macbook will draw from the battery AND the power adapter - But my Macbook was simply idling! I can't fathom that a webbrowser and Preview would require THAT much draw for power. In fact, I've run my Macbook MUCH more intensely for much longer periods of time when running Final Cut and Adobe After Effects and NEVER seen this issue before.
Is this an indication of a failing battery? Ever since I noticed this, the charging time indicated has held steady at ~1:13 (that's been about a half an hour now). I don't know if the Macbook will discharge the battery completely every so often by itself, or if the battery is just failing and that's why it went from 100% to 4% in just under two hours while idle.
Info:
MacBook Pro, Mac OS X (10.6.8)
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Oct 17, 2009
I use my MBP 15" (the new one), as my primary machine in my office. I sit by my best usually 10-12hrs a day working on it.
I am trying to figure out what is best to do, keep the AC plugged in or have it un-plugged and only plug it in when the battery is drained (or less then 50%)? I have tried different experiments, plugged in, not-plugged and time is about the same for life of the battery. The true question is, how is is best to do it for the health of the battery.
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Mar 30, 2012
Recently I've been noticing that my MacBook Pro's battery has been draining really fast. It's draining about 5% every 7 minutes. The battery condition is normal and it only has about 290 cycles on it. My brightness is turned all the way down, bluetooth is off and the only application I have open is Google Chrome, and I'm only using it to do some light browsing. Does anyone have this same problem? I have a MacBook Pro (mid-2010) running the latest version of Lion?
Info:
MacBook Pro, Mac OS X (10.7.3)
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Jun 2, 2014
when i first recieved my macair it was not charged dipite that the catalog says that is should be ready for used. I charged it and it worked pretty ok, and i even put it to sleep and no problems occured. however when i shut it down for a few hours i openned it to find that the battery was completely drained. it's doing it all the time when i shut it down! how could that be.? This is a mid 2013 13" model.
Info:
MacBook Air, Mac OS X (10.7.5)
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Jun 24, 2014
-Model Name: MacBook Pro
-Processor Speed: 2.8 GHz
-Memory: 4 GB
-OS X Version 10.9.3
When starting up it must be connected to the charger and when i turn it on it makes the bing noise, goes to the apple screen with the wheel turning for a second and shuts off. I have to do this multiple times until it works. Another issue that I am having is that the battery is draining very quickly. I just had it replaced a couple months ago.
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Oct 23, 2010
I bought my Macbook Pro 13 inch last year in August. The health is on 88% with 84 cycles. Original battery capacity 5450 maH, current battery capacity 4809 mAH (Coconut and Istat Nano). I just read in another thread that there are users who have higher health capacity with many more cycles! I took it to the Mac store in Bangkok two weeks ago since I believe that my battery drains quickly. They run a test and told me that my battery is healthy. Then they also downloaded some updates for my Mac and run disk repair under disk utility. The technician told me that these are heavy programs and if they battery drains very quickly there is something wrong.
But according to him this was not the case. I have a 500 gb hdd and the technician said that since this is a big hdd (he recommended 320 gb maximum for 13 inch macbookpro), it will use more battery usage. I don't use heavy programs, only internet (Facebook, gmail, very seldom watch movies, watch news papers), Itunes and sometimes Word. I do a lot of photo processing, but this I always do with my adaptor plugged in. I think I can only use around 3 hours. Sometimes 4 hours. Screen around 80% brightness. Keyboard lights, bluetooth turned off. Do you think that there is a problem with my battery? Oh and I do calibrate my laptop monthly.
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Jan 8, 2011
I have recently started using iTunes to listen to music while surfing the web or using other non intensive programs such as Inkscape. It appears that iTunes decreases my battery life considerably more than any other program that I use, even if I have a song on pause. While using iTunes my fully charged battery will display 4 to 3.5 hours of life remaining. When I have iTunes closed my computer will display a battery life of 7 to 9 hours, often with usage times the exceed that. Has anyone had similar experiences with iTunes and poor battery life, or am I doing something wrong here?
P.S. I have already calibrated my battery.
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Oct 2, 2009
I have noticed that my battery seems to be draining fast while the macbook is sleeping.
Its a blackbook, core duo, 2gb ram.. According to iStat Pro my health is 92% and the cycle count is 102.
Earlier today the battery was at 80% i just opened the mac up to write a email and closed it right back.. about 3 hours later the battery dropped down to 76%..
Seems kind of hight 4% for 3hours.
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Jun 24, 2010
The title says it all, basically my MBP's battery drains even if the computer is plugged. When I sat at my desk to use my MBP earlier today I noticed the battery was charging. That seemed very weired, I was sure it was at 98% last night. I decided to switch my computer off and let it charge all the way up.
When I turnt on my computer again i checked the battery and everything seemed normal, but after half an hour or so I noticed that my battery status icon had chaged from charged to not charging. I loaded up Coconut battery and the battery was slightly over 90%...and it's still draining out while tipyng... The AC socket is fine and I have an HDTV connected to the same power source. Needless to say the tv is working normally... I do not have an Apple shop nearby, the closest is over 200 km (approximately 140 miles) away.
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May 18, 2012
For no apparent reason my battery is draining rapidly. Mac Book Pro
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Apr 18, 2012
The last couple of days my battery has been draining extremely quickly, at full charge it indicates that I will get about 2 hours battery life when previously I was getting 6 to 7 depending on what I was doing. Also, I have noticed that the fan is running almost constantly and at high. I'm running os x lion and this is a late 2011 model MBP 13".
Info:
MacBook Pro, Mac OS X (10.7.3)
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May 20, 2012
Im facing a problem with my macbook..my battery drain after upgrade to lion. Before with snow leopard it took at least 5-6 hour to finish while streaming movies but with lion it took 2 hours to drain.. why ...
Info:
Mac OS X (10.7),
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Jun 1, 2012
my fan is constantly running draing battery very quikly.
Info:
MacBook, iOS 5.1.1
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Jul 4, 2012
After installing the update for Mac OS (10.7.4) my battery starts too drain too fast. As usual after 100% charge my laptop showing me time near 5 or 6 hours. Of course I understand that this number is relevant, but i always get this numbers when using not so heavy apps (Safari, Mail, Pages, Twitter and iTunes), but now i can see only 2 or 3 hours. After long searches i found the problem. My MacBook Pro 15 inch have problem with graphic-card changing, it always changes to AMD Radeon card when I start Twitter or Reader! I think that Twtitter is not so heavy app that must use diskrete grpahic-card. And because I always run Twitter in background my MacBook Pro's battery drains in a few hours.
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Info:
MacBook Pro, Mac OS X (10.7.4)
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May 4, 2012
I upgraded my 500 GB hard drive to a 750 GB, 7200 rpm. Now my MacBook Pro's fans are always on and my battery only lasts 2 hours. I got at least 6 hours before the switch.
Info:
MacBook Pro, Mac OS X (10.6.8), 8 GB ram
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Jan 7, 2011
It shows a battery capacity of 5393 mAh out of 5770 mAh with a condition of "normal" at 93% health. The issue is that the battery has been draining MUCH faster than usual. Yeah I know it depends on what I'm doing/Youtube/Flash blah blah blah. I get it. What usually took 6-8 hours of normal time to drain is now taking 2 hours, max. I reset the PRAM, etc --- not much different. Now, here's the BIG issue. I have NEVER been able to recalibrate my battery because after it hits 10-15%, the computer just shuts off. It never goes into sleep. This has happened every single time. Has this ever happened to anyone before? The Apple Store is ways away, and I don't want to waste time going if they're just going to tell me my battery is "normal" since I haven't hit my 80% health indicator.
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Feb 21, 2012
Recently my battery seems to be draining faster than ever before. I'm not sure why. I haven't changed any "display" settings & it's on default settings for brightness settings, etc.
Info:
Mac Pro, iOS 5.0.1
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Jun 13, 2012
Several weeks ago I upgraded my mother's MacBook to Lion. I had also intended to buy lion for myself but my iMac's hard drive died.Since Lion was installed the MacBook's battery life has been very, very poor - even booting up can cost 5%. A lot of people gave been discussing this. I have googled this issue and emailed Apple, but there seems to be no solution on the horizon. So I am going to reinstall Snow Leopard on the MacBook. I had intended to contact Apple to see if a refund would be possible. However, just yesterday I replaced the hard drive in my iMac and it is working fine now. So I was wondering since I paid for the Lion OS, is okay for me to install it on my iMac rather than attempt to get a refund. Is that legal? And would it work? Would the fact that it was bought using my mother's AppleID (my money though ;)) mean that if I install it on my iMac it will make my computer my morher's computer - meaning my morher's login and details will overwrite mine?
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Nov 26, 2010
I installed the hard drive with no problem and have experienced greater performance, no clicking nor vibration, and no freezeup or rainbow wheel. I also did a clean install of Snow Leopard. I did a PRAM reset at the beginning and calibrated my battery. However, now I noticed my battery is draining FAST, only lasting 2 hours. I looked a little online and discovered I may still need to reset the SMC (shift-control-option + power key), which I will do shortly. The battery lasted 6-7 hours before with my old hdd and is at 96% capacity.
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Feb 11, 2012
I am using MacBook pro Mac os X 10.7.3 lion. As per apple specification over wireless connection browsing battery will provide backup up to 7hrs. But I am getting max. 3/4 hrs even when its idle or playing music only. And when I am running a app getting back up only for 1/1.5 hrs. Its only 1 month old. So whats the problem? Should I contact with mac?
Info:
Mac Pro, Mac OS X (10.7.3), Intel core i7, Ram 4GB
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Apr 23, 2010
is battery calibration as simple as fully charging and then draining battery ,or is there more steps?
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Apr 28, 2012
I've been told that I should replace its battery since it's been damaged. I haven't had the time or the money yet to buy a new one, and right now, I really need to use it.
Info:
MacBook
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Aug 24, 2010
I just bought the new MBP 13" 'cause I'm gonna need it for college, but since I'll also use it as "personal computer", for web browsing, playing music and movies, I'll probably have to charge every day. My question is: if I got home and my MBP is dead, I plug it in and use it, when the battery is fully charged, I have to unplug it or I can use it for the night (still plugged in) and just unplug it the next day for school?
Is it somehow harmful to my battery life? And by the way, I've read that "discharge the battery" means just use at least until the 50%, is that right? So if I charge it just when it's about 40%, I just need to recalibrate once a month, and that's all fine, right?
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Oct 12, 2010
My wife and I always leave our MBP plugged up when we are near a charger. This morning the MBP had been plugged up all night, but the battery was dead. I noticed the light was out on the charger so I went to take it out, but when I touched it it turned red indicating that it was now charging. It turns out it is very finicky and randomly stops charging. Anybody else had problems with their charger? It will be Thursday before I have a chance to get to the Apple store.
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Feb 28, 2010
I bought my MacBook Pro 13.3" 5 months ago (according to Coconut Battery) and the battery-loadcycle is already at 51 and 89% battery capacity. Anyway I wanted to know, if I keep my Mac plugged in on the charger will the battery-loadcycles decrease?
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Mar 20, 2010
I bought my macbook exactly two weeks ago (tomorrow) and I'm already starting to have problems. My battery is currently at 10% when not plugged in but then when I plug it in it won't charge. What is wrong with it?
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Jul 28, 2010
Haven't found anything relevant on this. Basically my 2010 15" MBP just emptied its battery and is almost fully charged now. All this while it was plugged into electricity. Why?
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Apr 13, 2012
i very rarely use my MacBookPro away from home (scared of loosing it, LOL) almost all the time it is plugged into the mains 24/7, i just shut the lid when i am not using it. It is about 12 months old, but i notice that the battery meter never goes above 96%, does this mean the battery is on the way out and is going to get progressively worse ?I suppose it means the battery isnt going to last anywhere near 6 or 7 hours if i did unplug it from the mains?
Info:
MacBook Pro, Mac OS X (10.7.2), iPad 2, iPhone 4S
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May 7, 2012
my macbook will not start unless its plugged in to a power source. if you unplug it while running, instead of switching to battery power, it shuts off. the battery is currently at 53%, so i do not know why it will not run on the battery.
Info:
MacBook, Mac OS X (10.5.8)
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Jun 2, 2008
I just noticed that my when I got my macbook plugged in, it's not charging. The icon is the one you got when it's plugged in (with the little fork-shaped thing in the middle), but instead of it saying 'charging' like when the battery isn't full, or 'charged', when it is, it just says 'Not Charging'. It's like it can see the magsafe connector inside, but the juice isn't coming through to the battery, even though the computer itself is powered by the charger since when I click on the power symbol I get 'Power source: Power adapter'.
Also, the magsafe connector itself isn't lit. It used to be green for a bit, but a much weaker green than normal, and before that it wasn't even lit--I've tried with three different wall outlets, one of which was outside my house where I usually use it (it was in a starbucks). Also, when I disconnected the magsafe to get a reading for the battery, it was only 1:35, even though the magsafe light was green (albeit a weak green). If it matters, I'm running 10.5.3. The macbook is still fairly new, bought mid-december, all updates current as I got it set to checking daily and install the minute I get the notice.
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