MBP Shuts off when on battery Power

As soon as i unplug the charger the computer shuts off. here is my info
cycle count 368
charge remaining 4664
fully charged yes
charging no
condition good
battery installed yes
full cap 4666
voltage 12578
thanks

cycle count 368
The useful life of a typical Li-based battery is ~400 cycles. Your battery is simply getting old - it's time to buy a new one.

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Randomly Shutting Off When On Battery Power

So, I recently had my logic board replaced because my built-in audio out port wasn't working. I had this done more than a week ago, but just 2 days ago I was using it without being plugged in for over an hour (the battery indicator said I had about 50 minutes left of power) and then suddenly, it just shuts down. I hit the power key, and hear the startup "ding", and then hear it shut down seconds later. I plug it in, and start it up, and it works fine. Then last night I was using it on battery power again, and when the battery said 57 minutes left, it just shut down.
Could this be from my new logic board?

Hi E,
Unlikely, but possible. More likely the batt is dying. Time indicators have never been known for their accuracy, and a batt starting to die increases that problem. Check the condition of the batt (Apple Menu:About This Mac:More Info:Power) and post back.
Message was edited by: tjk

When I use my 5 year old MBP on battery it suddenly shuts off when the battery life reaches 88%. Anyone know why and how to fix it?

when I use my 5 year old MBP on battery it suddenly shuts off when the battery life reaches 88%. Anyone know why and how to fix it?

Model Information:
Manufacturer:          Sony
Device Name:          ASMB012
Pack Lot Code:          1
PCB Lot Code:          0
Firmware Version:          110
Hardware Revision:          500
Cell Revision:          303
Charge Information:
Charge Remaining (mAh):          4108
Fully Charged:          Yes
Charging:          No
Full Charge Capacity (mAh):          4200
Health Information:
Cycle Count:          40
Condition:          Service Battery
Battery Installed:          Yes
Amperage (mA):          0
Voltage (mV):          12361

MBP shuts off when battery goes down to ~20%

Recently, my MBP started shutting off when the battery level got to 20%. No low battery warning, just shuts off like it got to 0%. I plug it in, turn it on, it boots and battery level is right around 20%.
Battery Information:
Model Information:
Serial Number: SMP-ASMB012-3571-70d
Manufacturer: SMP
Device name: ASMB012
Pack Lot Code: 0001
PCB Lot Code: 0000
Firmware Version: 0102
Hardware Revision: 0300
Cell Revision: 0200
Charge Information:
Charge remaining (mAh): 4420
Fully charged: Yes
Charging: No
Full charge capacity (mAh): 4440
Health Information:
Cycle count: 191
Battery health: Good
Battery Installed: Yes
Amperage (mA): 0
Voltage (mV): 12544
I took it to the Apple store and the "genious" told me that cycle count is too high and they can't replace the battery under warranty. He said I use it with a battery too much. Last time I checked, I bought a portable computer, it has a battery for a purpose. When I work at a client's office I don't always have it plugged in. What does actually constitute a "cycle"? I've had the laptop for 1 year and 2 months.

Ok, so I'll tell you guys my experience with the genius bar at the Apple Store.
It was about 2:20 pm today, I walked up to the genius bar and waited for someone to come to me -- which took all of 30 seconds. So he asked what my reason for visiting was, and I told him the story about how my battery would just cut off at 30%. He then asked for my computer, so I reached into my laptop bag, pulled it out, and placed it in front of him. It was in sleep mode so we just opened it up to get started; he went to the "About this Mac" from the Apple button in the menu bar and took a look at my serial number. After about 2 minutes he said "I'll be right back." I waited for no longer than two minutes, and he came out from the back with a box in hand. He then flipped my computer over and took my battery off, opened the box, pulled out a new battery and placed it in my computer. Then, all that I had left to do was sign for it, and I was on my way in no more than 10 minutes.
What I find interesting is that he didn't even look at how many "cycles" my battery had; although, it probably wouldn't have made much difference as it was only at 17. At any rate, I asked him if there was a set of defective batteries out there -- including mine -- and basically he told me that yes, there was. So I guess since he looked at my computers serial number, his computer told me that mine was one of the affected ones.
Anyways, bottom line was it was very easy to do to get it replaced, with zero hassle. For the most part, I'm pretty happy with how the Apple Store and genius bar both opperate, much better than dealing with stores like Best Buy and the like -- in my opinion anyways.
Good luck everyone.

My i phone 3g turns it self off when the battery power gets to about 50 % is there a few for this?

My i phone 3g turns it self off when the battery power gets to about 50% is there a fix for this

This is often due to faulty battery. Make Genius reservation and take iPhone to Apple Store for free quick battery diagnostic testing.

Please Help! MBP shutting off when plugged in, now not recognizing MagSafe Adapter

I started seeing this problem a few weeks ago, my MacBook Pro just shut off spontaneously while watching a video full-screen. I turned it back on and the problem went away for a while. But now, the shut-downs happen more frequently. It doesn't matter if the MBP is running off of the battery or if its running off of the AC cord, it will just shut off. No warning. No standard shut-down process, everything just stops and a balck screen shows up. After it shuts off, it takes a few seconds to get it to restart, and when it does, the computer's date and time will be reset to some date in 2000. Very strange, I've had this computer for a year and I know people with the same model that have had no such problems. The battery is at 168 cylces (I use this for school, so it was being used everyday throughout the last two semesters), and the Condition is listed as Normal in the System profiler, so I doubt the problem is with the battery, but I could be wrong. I've seen posts about the RAM/PRAM causing the date/time resets. Nevertheless, the MBP has been running normally on the battery, battery life is still the same length of time as it was when I first got the computer, and runs smoothly. Up until last night, the AC MagSafe Adapter was still working, so I only used that as the power source. Everything was fine, but the MBP shut off once or twice while it was plugged in within the last month or so, but the AC would still have a green light, indicating the computer was still recognizing the power source. Now, I can't get the MagSafe to be rocognized at all. The computer is running on battery only, and I've tried resetting the SMC, but I'm unsure if it worked since the MagSafe is still unrecognized. When its plugged in, the System Profiler says it is not connected and not charging.
I'm running on Mac OS X 10.6.8, a 2.4 GHz Intel Core 2 Duo, with a 4GB memory (of which less that half is used). Computer usage is low, so its not like I'm running several programs at once, at most, its two or three at a time, for short periods. My MBP is a 13" aluminum body, doesn't seem to be overheating, has worked fine after long periods of being on and getting hot, I always let it cool down after I feel it getting too warm.
Please help if you can! Thank you!

Battery Information:
Model Information:
Manufacturer:          DP
Device name:          bq20z451
Pack Lot Code:          0000
PCB Lot Code:          0000
Firmware Version:          0201
Hardware Revision:          0002
Cell Revision:          0164
Charge Information:
Charge remaining (mAh):          2037
Fully charged:          No
Charging:          No
Full charge capacity (mAh):          5078
Health Information:
Cycle count:          168
Condition:          Normal
Battery Installed:          Yes
Amperage (mA):          -917
Voltage (mV):          11235
System Power Settings:
AC Power:
System Sleep Timer (Minutes):          10
Disk Sleep Timer (Minutes):          10
Display Sleep Timer (Minutes):          5
Wake On AC Change:          No
Wake On Clamshell Open:          Yes
Wake On LAN:          Yes
Display Sleep Uses Dim:          Yes
Battery Power:
System Sleep Timer (Minutes):          5
Disk Sleep Timer (Minutes):          10
Display Sleep Timer (Minutes):          1
Wake On AC Change:          No
Wake On Clamshell Open:          Yes
Current Power Source:          Yes
Display Sleep Uses Dim:          Yes
Reduce Brightness:          Yes
Hardware Configuration:
UPS Installed:          No
AC Charger Information:
Connected:          No
Charging:          No
thanks for the quick reply~

MBP shuts off when using Skype

I recently downloaded skype to stay in touch with family who don't have a .mac. However, now if I'm not plug into an outlet and I use Skype, the MBP will randomly and instantly shut off. My battery displays full or near full life and I don't have this problem if I stay plugged in. I've updated all software and this hasn't resolved the problem and I don't have this problem when not using skype. Please Help

I checked the system profiler and the full charge capacity is 2657 and the cycle count is 107. This only confirmed my earlier diagnosis. The battery is failing. It is now happening when Skype is not on. I think it was just a coincidence that the problem appeared after installing Skype. I've also now noticed a bulge around the battery area and intermittent trouble with the track pad and button. I contacted Apple about the battery and was told I'd have to buy a new one. I'm only out of warranty by a few months and my battery was not part of the recall. Thanks for the help.
Message was edited by: sluey

Mbp shuts off when...

hi all,
My mbp shuts off everytime I unplug the ac. In "istat" and "about this mac", my battery is diagnosed as healthy. The only thing that I see in "about this mac" that might be causing this (honestly, I have no idea what this means) is this.
Hardware Configuration:
UPS Installed: No
Its at the bottom of the power section in about this mac. Whats a UPS? should this be installed? if yes, can someone tell me how to install UPS?
mbp Mac OS X (10.4.9)

That "No UPS" should be nothing to worry about. I have the same setting in mine and there is no problem.
On the other hand, if the battery is failing to supply power, that might be one of several things and, presuming your MBP is still within warranty, it needs looking at by Apple.
As a thought, why not check the relative settings for Power and Battery in "Energy Saver" preferences (in System prefs)?

Laptop randomly switches off when on battery power.

When on battery power my HP DV3500EA laptop randomly switches off (this is only a recent problem). This is when there is still significant charge on the battery. This does not happen when on AC power. Once it has switched off, the laptop is able to be switched back on again and run normally until the next time it switches itself off. It doesn't shut down, it just turns off immediately as if the battery has run out. I have checked that it is not overheating - the CPU temp is generally between 40 and 50 degrees Celsius. I know this isn't a software problem because it does this on different operating systems (Windows Vista and Ubuntu Linux). I assume this means it must be a hardware problem, but I can't work out what it is or how to fix it.
Does anyone have any ideas?

Exact same problem with my Envy 13 running with windows 7... any solution besides bringing the laptop back to the store?

MBP shuts off when hot [only when battery plugged in even if its on ac pow]

So when my early 2006 MBP heats up, it shuts off. This only happens with this specific aftermarket battery that I bought. Even when I have ac power with that battery installed, it will shut off. When the battery is out and it is running on ac power it will never shut of, even when heated beyond what my oven can do.
I understand it is the aftermarket battery that is causing this. But is there a solution to this? I did everything from PRAM reset to calibrating the battery. But it did not help. I can't afford an official battery on a student budget so that is a no go for me.

I understand your cost concerns but the symptoms you've mentioned should not be ignored or masked by doing something that covers them up instead of eliminating them. I would contact the battery seller/maker and seek relief that way. Continuing use under those conditions can lead to damage, and I don;t believe there is anything you can do to mitigate the issue as long as you are sure the battery is the root cause.
Before contacting anyone, you need to get a utility that reads temps. A lot of Mac notebooks can be "to hot" to the touch but not dangerously hot to the components. Best not to guesstimate temps. Try this Dashboard widget:
http://www.apple.com/downloads/dashboard/status/istatpro.html
Also understand that, when you run a MacBook Pro with the battery removed, the processor speed clocks back quite a bit. This article:
http://support.apple.com/kb/HT2332?viewlocale=en_US
explains why but does not say how much. Knowledgeable posters hear have suggested it's significant--clocking back to either 1/2 rated speed or to 1gHz. That will reduce temps anyway.
You may want to post your "Battery Information" section from System Profiler (in your Utilities folder) so we can look at battery condition. That may provide you with some extra ammo for confronting the battery makers should that path prove appropriate. Omit any serial numbers when posting battery info.

MBP shuts off when not plugged in (yet battery is fully charged)

This is the 3rd time I've suffered from this problem.
The problem lasts for about two days then seems to go away for a week or so.
When I leave the MBP charging for a few hours, then disconnect the power, it almost immediately shuts off (no warning, no error, no sleeping).
While disconnected, if I try and turn it on, I hear the boot sound, but then it shuts off again - the monitor never turns on.
If I connect it back to the power it turns on and boots fine.
My parents also have a brand new MBP, and I can avoid the problem by swapping batteries.
I therefore think my battery is faulty.
What else can I do to test the battery functions?
Thanks,
-Vijay

This started happening to me a few wks ago. My MB Pro would just go blank and shut down for no reason, while using it unhooked from the power cord. I could restart it, but it would shut down within a few minutes. The battery showed 60 to 70 %. Looking up on this discussion, I found numerous others who have had this problem. I called Apple support, but could not get to a person, they work only 6AM to 6PM in the US. So, today, I took it in to the Genius Bar, here in San Jose, CA. His first reaction was, Oh, you do not have Applecare. I told him about the battery problem reports on this discussion. He feigned ignorance of the problem. Next minute, he turned to me and said he will replace the battery free of charge! My MB Pro is 17 months old, and I do not have Applecare. So, all you people with this 'sudden death syndrome' please go into the store, or call Apple and claim what is due.

MBP shutting off when battery still at 20-30% charge..help a newbie

I have had my MBP since last march but I have to admit I am a casual user and this is my first mac (meaning I am pretty clueless). I have had zero problems with my MBP until now...
Over the last several days my MBP has been shutting off unexpectedly as if it is out of battery, but with no warning and the battery indicator says it still has decent charge (usually 20 to 30%). If I plug in the charger and turn it back on it works fine and the charge is where it was when it shut off.
Does anyone know why it is doing this? I have been only using Safari when this happened. It is very frustrating to unexpectedly lose my place in whatever I am doing, and I want to make sure something is not wrong with my computer.
MPB Mac OS X (10.4.8)

Have you calibrated the battery recently (or ever)? If your battery isn't calibrated then your computer can think that there's 20-30% left when in fact it's empty. Also, there's a firmware upgrade to fix MBPs that shut down randomly(that is if it's not a battery problem). Info on the firmware can be found here:
http://www.apple.com/support/downloads/macbookproefifirmwareupdate12.html
and info on calibrating the battery can be found here:
http://docs.info.apple.com/article.html?artnum=86284
Hope this helps.

MBP Shuts off when there is slight movement

Hi,
Today my MBP started acting weird. I've never had this problem before. If I tap it, or move the lid it randomly shuts off. I'm afraid to type to hard b/c I feel like it will just shut off with any slight movement. I've reset the SMC and done a bunch of other troubleshooting.
Is this a software issue or hardware?
I feel as if there is a sensor loose inside my mbp which is causing it to suddenly shut off.

Bound to be hardware, Rudy.
Does it occur both when running from battery and from the mains?
Is it definitely shutting right down rather than falling into an unwakeable 'sleep"? (If it is shutting right down then a single press of the power button is all that is needed to restart, rather than holding the button down for a few secs and then pressing it again.)
What model is it?
Cheers
Rod

MBP shuts down when connecting to power

Since a week or two, my MacBookPro from early 2011 shuts down when connecting the magsafe to power. Also when starting up again it will start up fine and fast from battery, but I need to hold the power button for several seconds when connected to power.
Another problem I had earlier as well is CPU (kernel task) of over 90%, which I now see clearly, only occurs when connected to power. I used to solve this problem by putting the MBP to sleep, but now, when put to sleep, it will shut down.
When on battery, I have no CPU problem and can put machine to sleep without a problem.
I recently started uploading everything to dropbox, and activate caffeine to make sure it will keep uploading. My computer will run for days on power combined with caffeine, but is as slow as **** because of a >90% CPU.
The battery has had a notification for maybe a year, that it needed service, so today I finally bought and installed a new battery, but the problem is not solved. Is this software or could it be my magsafe adapter? Thanks for you help.

It sounds like a problem with the power management inside your MBP. I suggest you call Apple to make an appointment at your local Apple store for them to check it out for you.

MBP shutting down when on battery

Hi all!
I've got a problem with my one-year-old MacBook Pro: each time (and I mean EACH time) I run it on the battery, it simply shuts down after a while, even when the battery icon/indicator in the toolbar says I've got 70% left.
One quick look in the Battery settings shows that I've already gone through 74 cycles of charge/discharge (by last count), so I'm far from the 500 they say a battery can reasonnably sustain before replacement. The current (guffaw, guffaw) battery is the one I got from Apple last summer when it became clear they'd used a bad batch, the previous winter. It's been working alright for almost ten months, then boom!, it's started acting out again. Should I put in for a new replacement (I took the 3-year warranty), could the last update related to battery life have some unwanted effect on mine, or is there some other way to solve it?
Also, I don't hear the fan(s) in my MacBook Pro at all, but it was running hot from the start, so I finally bought a fancy little tablet with three fans embedded in it, and now the temp is normal; said "tablet" is USB-powered, but when my battery problems started again, every time, the tablet was off.
So...?
MBP Core Duo 1,83GHz 15" Mac OS X (10.4.10)

Welcome to the forums!
The symptoms you describe are consistent with premature failure of your battery. Apple states the symptom as "Battery exhibits low charge capacity/runtime when using a fully charged battery with a battery cycle count (as shown in System Profiler) of less than 300." (Copied from this page, which DigitalDude kindly linked to above.)
I think Ned is incorrect about them replacing your battery for 2 reasons: 1) you say have the 3 year applecare plan, and 2) Apple extended the warranty coverage to 2 years from date of purchase for all Core Duo machines (this is separate from the battery exchange program). The warranty extension for Core Duo machines is stated near the bottom of the page linked above.
Call AppleCare - they should replace your battery.
Hope this helps...

MBP Shuts off when on battery Power

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