Power Cord/Shut Off

When my Mac Book is plugged in, if the cord gets pulled out (which is easy as it is magnetic) the computer shuts off... Is there a way to stop this from happening?

Sounds like you have a battery problem. Are you sure it's charged? If you click on the battery gauge in the upper-right corner, it'll give a percentage -- if the power connector light is green, the battery should be over 95%. Is it?
If you have an Apple store nearby, I'd stop in and show them the problem, and see if they can diagnose it. I had a battery stop accepting a charge after I discharged it, and they ended up replacing the battery. (The computer was fine.)

Similar Messages

My macbook pro has been shutting off on its own. The power cord "shuts off" (does not work) simultaneously. Does anyone know what is wrong? or what could be the problem?

My macbook pro has been shutting off on its own. The power cord "shuts off" (does not work) simultaneously. Does anyone know what is wrong? or what could be the problem?
When my mac finally turns on the date/time is reset a windows pops up saying, "Your computer's clock is set to a date before January 1, 2008. This may cause some applications to behave erractically."

Resetting your Mac's PRAM and NVRAM
If you have Apple Care you should give them a call.

IMac G5 does not turn on after power cord knocked off

I have an iMac G5 that I recently passed on to my daughter. For the past few years it has been working fine except for one occasion that I replaced the power supply. At that time it was still covered by warranty and Apple sent me a replacement unit that I installed myself. Lately, the power cord was knocked off while the computer was on and now it will not turn on completely. It starts for about 15 seconds up to the gray Apple logo then the screen goes blank. I monitored the LEDs and all 3 do turn on then the computer shuts down. At first I thought it's the power supply that was affected with the power cord accident, and bought a replacement unit. I have just installed it but still the same problem exist. I am now asking for help from the expert souls out there to save this computer. Thanks.

No more ideas except to try starting from the install disc and see if that works. Resetting the PRAM might jolt it back to life, it's worth a try, but I am not hopeful.
If you do take it in, please let us know whether it was the logic board...

Tip power cord broke off inside outlet.

The very tip of the male end of my power adaptor broke off INSIDE the computer. It is now stuck in the computer's power outlet. How do I get it out without disassembling my powerbook?
I should add that the outlet is still working and my replacement adaptor charges it, it's just that it doesn't sit comfortably with the other thing still inside it and occasionally it makes a little crackling noise (no sparks, just the noise)
Also, this is the second time that this happened with an Apple power cord in the space of a year. I am not unduly abusing my power cords, so what am I doing to cause this? Are Apple's power adaptors shoddy or is it me?

Yes, that will always be a danger.. which is why you use a tiny tiny amount of glue, and let it dry. You'll be able to pull it out, even if it glues to the metal.. as a non-pourous surface, the bond with the super glue won't be very strong.
Personally, I'd very seriously consider stripping the machine down, following the instructions at http://www.ifixit.com

Power On - Shuts Off

2005 Media Center PCm7170n, Pentium D 830 3.0GHz
- Had some wakeup, power on issues but always was able to get it up and running
- Added 4G memory, upon closing it up and restarting no power at all, power button pushed and nothing happened
- Took it to a solutions shop and they diagnosed bad power supply (possibly causing older wake up issues?)
- Brought it home, ordered new power supply and replaced
- Now it turns on and startes up for 7-8 seconds then shuts down
- No beep codes
- Checked for arching, unplugged and removed all accessories and still same result, checked new supply voltages-OK,
put in old supply- back to no power at all, back in with new supply still shuts down after 7-8 seconds.
Any Ideas?
I have a second machine so I've been able to recover all my files, trying to use this as a learning tool on computer hardware, to make it a little less like magic!
thanks

HI
I got the issue,
when you pusing power button it shows power for 7 to 8 seconds and then shutdown,
and like your Machine fans turn on for 7 to 8 secnds then turn off automatically,
its because you have some issue with your motherboard, like power capactors etc. if it can repair with cheap cost then make it repair otherwise change your motherboard with new one, its the only solution.
I have seen this issue so many times with many Machines, only i could fix it via repair the motherboard or chaning the motherboard to a new one.
Hope this helps!
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Why did Phone battery lose all power while shut-off ?

Yesterday, my iPhone 3Gs went completely dead. Finally a symbol appeared telling me to recharge the battery. Somehow, the battery got drained of all its power. I was in a state of shock as the battery strength was 84% the last time I used it. The phone was turned-off. I had been to the park but I kept the phone protected in a case. I notice it was very warm when I touched it. Is it possible the phone was running even though the screen was off? How could the battery drain with no use? What could be the explanation? Luckily, I didn't miss any important calls for the 6 hours it went dead.
Message was edited by: Myron2

Are you using push/fetch for your mail account? If yes, could be that the phone got stuck connecting to the mail server while in sleep mode.
If your WiFi was active, could be that the connection was lost and the phone tried to serch for another WiFi spot to connect. A weak 3G connection can also cause the battery drain.

Uplugging Power - screen shuts off

Hi,
Sometimes when I unplug the power chord on my MBP the screen goes blank (kinda flickers out). I can also hear a click when this happens.
Is this normal behaviour?

No, that certainly does not sound normal. I would recommend a call to AppleCare...

MacBook Shuts off While Using Battery Power

Hello!
I have a white 13" MacBook from 2006.
But whenever I try to just run the MacBook on battery power, it shuts off within
1-3 minutes of use (Mainly using Safari).
I tried to reset the SMC, and changing the battery to a new one, but the problem
still persists.
*Battery Information:*
Model Information:
Serial Number: DP-ASMB013-34da-4799
Manufacturer: DP
Device name: ASMB013
Pack Lot Code: 0001
PCB Lot Code: 0000
Firmware Version: 0102
Hardware Revision: 0300
Cell Revision: 0200
Charge Information:
Charge remaining (mAh): 3693
Fully charged: Yes
Charging: No
Full charge capacity (mAh): 3869
Health Information:
Cycle count: 217
Battery health: Good
Battery Installed: Yes
Amperage (mA): -1231
Voltage (mV): 11969
When we switched the battery, the cycle count was 216 with the new battery.
But when we switched the batteries back, it was still a cycle count of 216.
We also tried to call AppleCare, but they didn't help very much...
Is there a defective part in my MacBook?

Never mind with the question...
My dad mixed up the batteries and put the old battery back in the
old one, and the new battery stuck in the new one... =P
So, I tried switching the batteries by myself, and guess what?
I'm using the new battery right now - just on battery power!
(And it's not shutting off! =) )

Water in macbook pro. It turned on, then off... Chimes then shut off... Options?

Hey. So briefly.
On way home, layed bag flat with macbook inside. Water bottle cap not tight all the way. Felt cold on right leg, thought it was cold aluminum. Felt it and was water. Had very small puddle at bottom of bag. Immediately took macbook out and wiped down. No water inside keyboard area. Did not lift screen enough to wake from sleep. White light still intermittently flashing indicating that. Went to apple store. They opened lid and immediately held down power to shut off completely. Went to back and took off back lid, came back and said that it produced a puddle??? Not impressed with that or way it was said. They advised to leave it for 1-3 days. Went home, took off back lid, inspected and absolutely no water at all! Put back lid back on and turned on. It booted to login screen, then past after entering info. Loaded programs galore. After 5-8 minutes, shut down by itself. Tried turning on again, I hear boot chime then something clicking off inside, no screen. Then white light flases as if it is put in hibernation mode. I try one more time to hold down power and then boot up again, chime and same thing. No screen at all, click inside (dvd drive?) and hibernate...
What do you think? Battery indicator says full. White light flashes. No screen though and no boot up. Everything backed up on time capsule. Is there hope after 1-3 days? If not, what do you think is fried? What's the cost estimate? Anyone ever have a favour by apple because of extreme loyalty to the brand (product buying).
Thanks for listening and assisting. Will try anything.

MarkusLarockus wrote:
Hey. So briefly.
On way home, layed bag flat with macbook inside. Water bottle cap not tight all the way. Felt cold on right leg, thought it was cold aluminum. Felt it and was water. Had very small puddle at bottom of bag. Immediately took macbook out and wiped down. No water inside keyboard area. Did not lift screen enough to wake from sleep. White light still intermittently flashing indicating that. Went to apple store. They opened lid and immediately held down power to shut off completely. Went to back and took off back lid, came back and said that it produced a puddle??? Not impressed with that or way it was said. They advised to leave it for 1-3 days. Went home, took off back lid, inspected and absolutely no water at all! Put back lid back on and turned on. It booted to login screen, then past after entering info. Loaded programs galore. After 5-8 minutes, shut down by itself. Tried turning on again, I hear boot chime then something clicking off inside, no screen. Then white light flases as if it is put in hibernation mode. I try one more time to hold down power and then boot up again, chime and same thing. No screen at all, click inside (dvd drive?) and hibernate...
What do you think? Battery indicator says full. White light flashes. No screen though and no boot up. Everything backed up on time capsule. Is there hope after 1-3 days? If not, what do you think is fried? What's the cost estimate? Anyone ever have a favour by apple because of extreme loyalty to the brand (product buying).
Thanks for listening and assisting. Will try anything.
You're probably past the stage when drying it off would help, but dry it needs to be before! you apply power to it again. If the battery is removable, remove it. Put it (as LInc said) in a bag of uncooked rice, for a minimum of 7 days, DO NOT turn it on again until this time has passed.
Good luck

I have a Mac G4 double mirrored model and everytime I shut it off it will not go on when I hit the power off button. However, if I unplug and plug in the power cord it boots fine and everything is OK. The PMU and logic board have been reset. Any ideas?

I have a Power Mac G4 double mirrored model and everytime I shut it off it will not go on when I hit the power on/off button again. However, if I unplug and plug in the power cord it boots fine and everything is OK. The PMU and logic board have been reset. Sometimes my Mac goes on just by pressing the power on button but most times I have to pull the power cord and put it back in. Any ideas or help out there for this? Could it be a failing power supply? Apple Care says that this model is obsolete so there is no help from there. John
<E-mail Edited by Host>

Hi John,
That's often a sign of a bsad Capacitor in the Power Supply, but...
Might be time to replace the PRAM Battery, 4 years is close to their lifespan, far less if ever without AC power, & can cause strange startup problems...
http://eshop.macsales.com/item/Newer%20Technology/BAA36VPRAM/

New (3mo) macbook air screen goes black and sometimes won't come back on after I unplug it from the power cord. Any ideas why it is doing this? Sometimes I have to hold power button for 10 seconds for it to shut off then back on.

New (3mo) macbook air screen goes black and sometimes won't come back on after I unplug it from the power cord. Any ideas why it is doing this? Sometimes I have to hold power button for 10 seconds for it to shut off then back on. Sometimes holding the power button for a second is enough for it to come back on.

I took it to the Genius Bar, and they identified it as a hardware issue. Just got it back today. Parts replaced were:
620-5629 Display Module — Symptom: Distored/blurred/focus video issue
605-3284 Top Case with Keyboard — Symptom: specific key(s) do not work
So far so good. I'd suggest taking it in and not trying to work around it — it's a rare hardware issue (given the number of threads about it) and should be replaced.

Macbook shuts off instantly when I unplug power cord.

Hello everybody.
This afternoon while I was watching a movie on my macbook, (it was on battery power, about 3/4 full) it just shut off. I could not turn it back on, so i plugged the power cord back in, it turned on fine, but whenever I unplug it it shuts down, even though it recognises the battery and charge level and all.
The thing is, when it shuts down it's not like if there was no battery, the screen dims, the battery icon changes to the one it has when its on battery power, and about 1-2 seconds later everything just shuts down. I'm just out of warranty (about 2 weeks ago). Do you guys think this is a hardware issue? I've gone through all the updates i have found on batteries and even reset the power management thing (where you turn the computer off with no battery and hold the power button).
Thanks for any help
-Cedric

I have exactly the same problem, and it only started yesterday after a year of using my MacBook Pro with no problems. My system profile is as below:
Battery Power:
System Sleep Timer (Minutes): 45
Disk Sleep Timer (Minutes): 10
Display Sleep Timer (Minutes): 45
Wake On AC Change: No
Wake On Clamshell Open: Yes
Display Sleep Uses Dim: Yes
Reduce Brightness: Yes
Hardware Configuration:
UPS Installed: No
AC Charger Information:
Connected: Yes
Charging: No
Battery Information:
Model Information:
Serial Number: Sony-ASMB012-36ed-758f
Manufacturer: Sony
Device name: ASMB012
Pack Lot Code: 0003
PCB Lot Code: 0000
Firmware Version: 102a
Hardware Revision: 0500
Cell Revision: 0303
Charge Information:
Charge remaining (mAh): 3855
Fully charged: Yes
Charging: No
Full charge capacity (mAh): 3905
Health Information:
Cycle count: 324
Battery health: Good
Battery Installed: Yes
Amperage (mA): -1
Voltage (mV): 12487
If anybody can please help me it would be much appreciated. Thanks in advance.

MacBook shuts off without power cord, even when battery is charged

I bought my MacBook in October. I've been treating it really delicately. But for some reason, it will not run without the power cord plugged in (as of yesterday morning).
If I pull it out, it shuts down. If I try to start it up without the cord, it shuts down. It gets about 2-3 seconds before it just shuts off. (It will run in sleep mode without the cord plugged in.)
And for a brief time yesterday evening, it worked without the cord plugged in.
This is my first Mac and I have no idea what is going on.

This is a recently common issue with Macbook Lith-ion batteries.
You have a defective battery, although AppleTech defines defective as a battery below 350 cycle counts. That's the lifetime of your $130 battery, which may average between 6-13 months depending on how you use it.
Some customers have had to buy 3 batteries in the past 2 years because AppleCare doesn't cover consumable items, eg. batteries.
check consumer comments at http://store.apple.com/1-800-MY-APPLE/WebObjects/AppleStore.woa/wa/RSLID?fnode=h ome/shopmac/macaccessories/power&revw=MA561LL/A
I'm hoping Apple will realize that a $130 macbook battery with a 350 cycle count lifetime, doesn't live up to "Apple" standards. Lith-ion batteries are known to have a 2-3 year lifetime not 6-13 months.
Customers shouldn't have to purchase AppleCare only to realize they have to continuously purchase new batteries every 6-13 months.
This is truly a manufacturer defect in my personal opinion.

MacBook shuts off when power cord is disconnected

2007 White MacBook shuts off (not shutdown) when power cord is removed. Battery shows 98% charge. Any ideas? I plug AC power back in and it reboots when start button pushed. This problem just started tonight.
HELP!

Ronan... in your case, it looks like it's just time for a new battery. Your battery should hold a full charge for up to about 300 cycles. At that point, you should expect a decline in the charge capacity. As your battery has over 600 cycles, it sounds like it's had a good life. As you've had your MacBook for less than two years, it sounds like you are possibly using more cycles than necessary. You should try to use your MacBook while plugged in the majority of the time... but occasionally use it on battery (going through one or two cycles a week). A full cycle is a full charge and discharge. For example, if your battery is at 100% and you let it discharge to 90% and then you charge it back up to 100%, that is 1/10th of a cycle. You would need to do that 10 times to equal one cycle. If you started at 100% and let your battery discharge to 50% and then charged it up to full, that would be 1/2 cycle... doing this twice would equal one cycle. The number of cycles is the primary indicator of the life of your battery. It sounds like you are using your MacBook mostly on battery (with over 600 cycles in less than two years). After you replace your battery, try to run it plugged in for the majority of the time if possible. Many people are mistakenly under the impression that they should fully discharge their battery before charging it. This is not the case with Lithium Ion/Polymer batteries. This was the case with Nickel Cadmium or Nickel Metal Hydride batteries (much older rechargeable battery technologies). It seems many people still feel that the memory effect of the older battery technologies applies to newer battery technologies. Just the opposite is true.

My Macbook pro keeps shutting down right after I log in. The power cord seems to be fine, so I think the computer has enough power. Right after logging in, it shows a grey background with a loading bar that loads only 1/4. Then it shuts down.

I have had my Macbook Pro since 2011 and it has been great until now. Suddenly, I can no longer get past the grey screen just after I log in. The grey screen appears with a loading bar, and the bar get 1/4 of the way complete, then the computer shuts off. My power cord seems to be working fine because this problem still occurred after using another power cord (from another Macbook). Keyboard does not light up, and the small green lights on the left side of the computer do not light up (this is an older version and these light indicate how charged the computer is). It is using the OS X Yosemite and recently had total clearing of the hard drive as it was transferring from one owner to another, so the hard drive isn't nearly full enough to be causing this problem. I've never run into this problem before with other Macbooks.
Help!

Hi. When you were in the recovery drive doing permissions, did you try and run a repair of the boot drive? Did you try single user mode? Try these first and then go back and try to reinstall the operating system.When I say repair boot drive I don't mean permissions. There are both options in disk utilities.When you open disk utilities ,you will see in the left column two drives plus possibly a boot partition that look like an external driv. click on the second drive and in first aid use repair disk. If you still can't boot and it will not let you restore, you may have to do a clean install. http://support.apple.com/kb/PH18869?viewlocale=en_US

Power Cord/Shut Off

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