MacBook Pro :: Switches Itself Off / Was Running On Battery And Had 60% Power Available?
Dec 2, 2010
I have a late 2007 MBP 15inch 2.33Ghz Core 2 Duo. I have had since new and no problems. Over this last week I have had the same issue a couple of times. The MBP just switches itself off. The first time it did it, it was running on battery (I was using Aperture) and had 60% power available. It would refuse to re-start until I connected it to the mains and then it ran fine.
Then it did the same thing overnight at some point. I had left it connected to the mains (as I always do at home), had shut the lid to put it into sleep mode. When I came back it was switched off. No-one had touched it whilst I was away but yet it had just turned itself off.The only thing that I noticed was that when I started it up both times the little light on the magsafe connecter kept flashing between orange and green. However when the computer booted into OS X both times it showed a reasonable amount of power in the battery.
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Apr 2, 2007
I have an ibook G4 (2years old, a part of the battery swap program) that charges normally... for about twenty minutes. Then the light around the charger turns from it's normal "i'm charging" orange to nothing, the light goes out and the ibook switches to battery power. I've just inspected the power chord and there are no strains or tears, the plug at both ends are in good condition and the ibook power socket is fine too.
I've turned the ibook off for a period of time (two days) and reset the power manager... still no difference. The ibook looks and acts just like it should until about twenty minutes into the charge then the light turns off and it's like it's been disconnected. The chord is in correctly, i've even tried the apple extension chord = no joy. If i reconnect the power chord at the wall it's fine, starts charging again... and yes i've tried different sockets on different circuits in the house!
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Jun 18, 2010
I just turned on my 13" MBP and got this message. Apparently, this is supposed to come up when there is only like 5% charge left. My battery indicator at the top of the screen said there was 22% charge left. Also, according to IStat, my battery's health has already dropped down to 97% after only about 2 weeks and 5 cycles. Is this normal? I'm going to try recallibrating my battery by fully charging it and then letting it fully drain. Is there a good chance that this solves this problem?
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Jan 16, 2010
I have a MacBook (purchased in May) that has issues with the battery status. When the MagSafe Adapter is plugged in, it shows that the battery is charging, but when the MagSafe Adapter is unplugged from the computer, the computer does not recognize that it is running on battery power. (It still shows that it is running on A/C power.) I have already reset the System Management Controller, and it didn't work. What else can I do?
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May 4, 2010
2010 MBP 15" i5 running 10.6.3. Time machine doesn't seem to care about the fact that the notebook is running on battery power. I keeps on performing backups. I've tried restarting, enabling and disabling Time Machine....nothing seems to work... Isn't time machine supposed to delay backups when the laptop is on battery power..?
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Oct 5, 2009
I noticed that my battery cycle (according to istat) switches over at 15%. So as son as it switches over to the next cycle I plug in the adapter to make the battery run a cycle from 100%-0.(I know the cycle in 100%) But it still switches over at 15%, that means that the battery ran only 85% of its capacity. How can that be? Is it possible to reset (delete) battery cycle data?
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May 1, 2012
My 10 month old Macbook Air 13" battery behaves weird every 4 weeks. When unplugged the MBA switches off suddenly without a warning even the battery is still more than half full. Plugging it in it tells it takes 20 hours for a full charge but never gets full. After unplugging it crashes after some minutes again and goes dark.
The battery' got 178 load cycles and 5675 mAh out of originally 6700 mAh (84%). Did several SMC resets and PRAM resets. I even reinstalled Lion from scratch without changing the battery's behavior. Calibrating the battery isn't possible because it does not discharge but crashes. I tried three different power adapters.
Info:
MacBook Air, Mac OS X (10.7.3)
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Aug 30, 2014
Starts to power up from either mains supply or battery, but always switches off after anywhere from 10 seconds to a few minutes. Chimes, usually gets as far as screen coming on etc but then you hear the power cut and it just switches off (sometimes gets as far as login screen). Have tried NVRAM reset SMC etc.
Info:
MacBook, OS X Mountain Lion (10.8.5)
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Aug 26, 2014
It started a few days ago.... suddenly, the Computer switches off and the Power LED blinks continues very fast.But at irregular times. It seem to me, when I am not working on it. (I have also connected a PC to the same monitor and keep switching the monitor).
Yesterday i was working all evening, and it did not switch off. This morning while start up it turned off.I checked the memory in My Mac and all 16 GB show up. after I push the power switch for a while and turn it off, I can boot up again (except this morning, where I had to restart after the crash)  Â
Info:
Mac Pro, OS X Mountain Lion (10.8.5), Black Magic Extreme HD, GB RAM, 4 TB HDD
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Apr 29, 2010
Just wondering if anyone has ever encountered this or if any experts out there know of the issue.I have a spare White Macbook (late 2008: Core 2 Duo 2.1GHz, 1GB, 120GB) that I'd like to set up for my brother to use to introduce him to the wonderful world of Macs. The problem it is having is that when I have a battery connected to it (I tried 2 different ones included a known-good one that is brand-new just purchased from Apple) it powers on and gives me the chime, but then immediately shuts off unexpectedly giving that little "whine" sound like if it just lost power all of a sudden. However, when i take out the battery, and just plug it into the Magsafe AC charger it works fine. Also when just trying to run on battery it does not turn on at all. Here's some cliffs:
1) Macbook with just battery does not turn on
2) Macbook with battery + Magsafe AC charger connects powers on, gives the chime, but then immediately shuts off making the "whine" sound as if the power was suddenly cut off
3) Macbook with no battery connected and just the Magsafe AC charger connected works fine.Do you guys think this is either:
A) battery connector issue (the little piece with the metal wires that the battery connects to. ~$50 part)
B) Logic Board issue
I already tried resetting the PRAM and SMU to no avail.
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Nov 29, 2010
As I just bought a 13" MBA, I am still in my "babying" phase of the machine and want its battery power/capacity to last as long as possible. I have already done the battery calibration recommended by Apple (not even sure if its 'necessary' but I did it anyways), with charging, resting, draining, resting, and re-charging. But now I am worried about the battery cycles. Should I only plug my MBA in when the battery is close to being drained (aka use it on battery power for most of my usage?) or is it okay to drain the battery to like 80% remaining, charge, and then drain to 70% remaining, then charge again? Im not sure if Im making sense, but basically I don't want to be wasting these valuable cycles, as they seem to determine battery health and longevity. So what is the proper battery usage for the MBA, or is it basically use off power when you want and use on power supply when its available?
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May 22, 2012
I recently discovered my computer had died while it was sleeping. I tried charging it but am recieving the "Battery not charging, power source: power adapter" status.My power cord light is green, always. and the computer dies instantly when I remove the magsafe.
I've tried the "remove the battery, press the power button, plug in the magsafe" troubleshooting process, but it doesn't work.I've noticed that even with the battery out, the charger reads a green light.I've tried several outlets with the same results.Here are my battery statsÂ
Battery Information:Â
Model Information:
Serial Number:Â Â Â DP-ASMB016-384e-7636
Manufacturer:Â Â Â DP
[code]....
Info:
MacBook, Mac OS X (10.5.8)
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Mar 19, 2008
My girlfriend has a 12 inch Powerbook G4. She noticed that the battery life was starting to dwindle. Tonight, she tried using it. It wouldn't power up. The battery indicator showed one flickering power circle. The adaptor has the green circle on it, indicating the battery has a full charge. However, the computer won't charge up.I've read the 12 inchers don't have separate PMUs. Could that prevent the machine from starting? She was using it earlier this evening, as she e-mailed me pictures from our vacation.
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Oct 7, 2007
I have a DP 2.5GHz PowerPC G5 which is giving me problems. It is on all the time (server). If I try and restart it switches off but will not restar. Also, if it crashes (only happens once every few months) then it will not automatically restart. I have replaced the internal battery but this has not helped. I have also reset the PMU. Any ideas what may be going on here?
Information:
PB G4 12" and G5 DP 2.5GHz
Mac OS X (10.4.10)
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Apr 30, 2012
tried 2 boot up my G4, nothing, replaced internal battery, no status change, advice? would still like to be able to use it if possible and affordable
Info:
G4 dual os boot, Mac OS X (10.4.11), will also boot up in OS 9.2.2 when
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Apr 14, 2012
Battery is extremely hot and fan is always running. Regardless if I am watching a video or writing a document
Info:
MacBook Pro
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Jun 5, 2012
my macbook pro not charging. the battery is running low on 20 percent i puted it on charging it says not charging and light in charger is green what the problem can be?
Info:
MacBook Pro, iOS 5.1.1
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Sep 5, 2014
The battery icon on my macbook pro has a 'X' on top of it. The machine turns off as soon as i remove the power cable from the mac. It turns on only when i remove the battery and again put it back on. Once i do this, the battery shows 100%. After i leave it connected to the power for an hour or so, the 'X' appears again!! My macbook is not under warranty.
Its a 15 inch, Late 2008 model running on OS X 10.9.4.
Info:
MacBook Pro, OS X Mavericks (10.9.4)
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Oct 27, 2009
if I'm going to be running windows 7 through bootcamp almost full time.. would it better to get the 15" with 9400m only since the other models I've heard default to 9600 under windows. I don't play games and want to have good battery life while using windows.. so does the 15" w/ 9400m only seem like the better option for this?
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May 26, 2010
I just got the replacement battery from Ebay seller from China claiming it is the genuine battery. I am using it right now, when I plug the ac connector it doesn't turn red to show me that it is charging or something also the battery icon is showing an X but the battery is still running. I paid $60 for it.
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Jul 29, 2010
My last battery popped, and on Monday, Apple store gave me a new one. The lady told me that it was best not to keep the power connected all the time. So I charged it to 100% and pulled the plug. It runs down incredibly fast. This morning it's been unplugged for almost an hour, doing just a bunch of web searches, and it's already down to 37%. This isn't normal, is it? I was able to watch a 2 hour movie on a full charge for my old battery. Does the charge get better over time?
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Jun 17, 2012
My 2012 MacBook pro has a fan running on high from the moment I turn it on and my battery has an 'x' on it.
Info:
MacBook Pro
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Jul 29, 2010
I have a mid-2007 MBP. Here is my issue...it's been more than a year that when I totally discharge my battery (meaning the MBP shuts down), when I connect it back to the charge it is taking abotu 10 minutes to power up again...it was not the case before and my wife's MB is working well....meaning when it is down, just connecting the charger the MB is back on within a sec.
I have changed my battery but it did not change anything, I called Apple and they recommended me to restore snow leopard...which I did...I still have the same issue.
Does anyone experience this? Any idea what is happening (HW or SW issue) and is there a potential fix?
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Jun 21, 2012
I have just bought a second hand MacBook laptop and it has a wierd battery issue that can't seem to find mentioned anywhere.Initally all seemed fine, but then I noticed the battery wasn't charging and the battery menu reported no battery found, also the MagSafe plug had not light; some searching instructed me to reset the SMC which I did, and everything was fixed, I could runs the computer from the battery and the power lead charged the battery. But now (just a day later) the battery won't power the computer at all - the computer will only work if the power is connected - however the light is shown on the MagSafe plug and the battery is being changed, but if I disconnected the power lead, first I see the restar/sleep/shut down dialog that you see when pressing the power button, then shortly after the computer turns off, if the power if reconnected, it boots from scratch, so it wasn't asleep!
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Aug 8, 2007
My macbook fan doesn't stop running on high power (6700rpm). There is no process generating high CPU load (checked with iStat), and the macbook is on a normal desk. I've also made a SMC reset, without any improvement. I thought about reinstalling Mac OS X, but the fan already starts when I switch the computer on, so not sure if it's the OS. It's really annoying to hear the fan running all the time.
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Aug 19, 2009
How often do you run on reserve power? I do it everyday and am running on it right now =D
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Apr 25, 2010
I've recently experienced a problem with my mac. It shutdown when the battery had lost all of it's juice and wouldnt charge or run off the AC power. The charger is not the problem, nor is it the battery, but I believe it has something to do with the internal power supply circuitry of the laptop. The tiny light on the tip of the charger that's usually green when fully charged or not charging and red when charging is not glowing anymore. I believe a power surge was the cause of the problem or some elctro-static discharge of some sort. Whatever the problem is, it needs to be fixed ASAP! Does anyone know what the problem might be?
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Oct 29, 2010
What is the battery life like running on windows 7? I'm going to primarily use the an air under windows but will it really lower the battery life? Can't seem to find this info in any of the reviews so far.
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Mar 17, 2009
I am not sure if it only my macbook, but I notice a slight performance drop when I run on the battery v the AC. I notice that my application load slower, folders open slower and expose and spaces response is also slow as well.
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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".Â
Info:
MacBook Pro, Mac OS X (10.7.3)
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