Software :: Laptop Shuts Down When The Battery Is At 35% With No Warning?

Dec 1, 2008

Laptop shuts down when the battery is at 35% with no warning! Any idea of what to do?


PowerPC :: IBook Battery Charge Low - Shuts Down Without Warning

Oct 7, 2007

My school-computer (iBook 14" 1,42 Ghz G4, running OSX 10.4.10) has developed some unpleasant habbits lately. With lots of batterycharge left, 28-50%, it shuts down without warning. I try to restart it, and it gets to various stages of booting before shutting down again. It won't run untill i plug in the powercable, and then it starts of from almost half full charge. I did a bit of searching on the forums, and installed coconutbattery with the attached (depressing) result. Tried resetting the pmu, which didn't stop it from shutting down on me again 46 mins later. Does this mean I need to replace the battery?

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IMac :: No Warning - Just Shuts Off - Overheating?

Sep 14, 2009

I've been having trouble with my new iMac that i purchased recently (26th of August actually). Whenever I'm doing something CPU intensive, the machine just shuts off, but usually it's not right in the middle of whatever I'm doing, it's after I close the application. For example: I was playing SimCity4 the other day, pretty old game to cause this problem I would think. As soon as I exit the game, the system shuts off. No warning, nothing, just shuts off. This will happen when i close VMs (it actually happened yesterday while I was running the VM), etc. So I've reset the SMC/PMU, PRAM/NVRAM, and I've even reseated the RAM. Still the same problem. I've taken it in to a repair center in town, hoping I'll get it back by the end of the week. Does anyone have any idea why this would be happening?

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PowerPC :: G4 Ibook Shuts Down Without Warning

Dec 26, 2009

my daughter bought a used ibook g4 15" and it worked for several months before developing a maddening habit of shutting down without warning. I've read other threads about this with ibooks but they say it happens only when the battery is operating and doesn't happen when plugged in. My daughter's does it either way and will only stay on for ten or so minutes most times before shutting down. It makes the machine unusable. We've checked the power supply and the power input board. Is this a logic board issue? She paid $450 for the computer but the prices have come down and it might not be worth fixing. I can solder and can get into the logic board if someone can tell me what to do.

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PowerPC :: IBook G4 Suddenly Shuts Down With No Warning

Nov 5, 2007

I was hoping you could get me started in the right direction. My wife has an iBook G4 which lately, while using a full battery, just turns off suddenly. There is no warning and it never does it when it's plugged in. The battery looks like it's almost fully charged - at least that's what the meter in the menu says, so I don't know what's going on.

Could you possibly give me some steps to go through to try and figure this out?

The first step she wants to try is to get a new Intel MacBook, but I'd like to try a couple of other things first!

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MacBook :: Unable To Use System With Battery / Computer Shuts Down Hwen Start From Battery

Apr 18, 2008

My battery needed replacing for a couple of months before i dropped it from about knee level onto a sidewalk. After the drop I got the not charging icon. I thought maybe the battery had just finally died. so I did not panic about the no charge. The laptop works fine when plugged in to power with the old battery on or no battery at all. Not at all when unplugged.

When I put the brand new battery on the lap top, the computer shuts down halfway through boot up. I tried holding the power button down through boot up reset, as well as removing all power (plug and battery) and holding down the power button for 10 seconds reset.

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MacBook Pro :: Sudden Shutdown Without Low Battery Warning

Nov 13, 2008

I bought a MacBook Pro September 2007, the last months I have experienced a sudden shutdown of it without any low battery warning. After browsing around the forums I found a app called Coconut Battery which I installed. This is what it showed me: What I can do to get my battery performance better? Do I have to invest in a new battery? And aren't the prices on those extreme?

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Laptops :: Mac Book Pro Shuts Off When Using The Battery?

Oct 8, 2009

Mac Book Pro shuts off when using the battery after about 20 minutes. System Profile information says it is fully charged. Health Information, cycle count:108, Condition: check battery. I believe I have two weeks left on the Applecare Protection Plan.

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MacBook Pro :: Shuts Down Instead Of Sleep When Out Of Battery

Sep 20, 2007

Is it strange that my MacBook now just shuts down when it runs out of battery instead of just going into sleep mode? It's about two weeks old now. It used to go into sleep mode, but now it just shuts down once the battery is down. Also, I had the most wonderful experience with Apple. My first macbook (three weeks ago) had a small chip on the screen. When I finally noticed it, I thought it was a large piece of dust so it wasn't too terrible. I tried to exchange it at the local store where I purchased it, but it had already been four days and I had cut out the UPC for the printer and ipod rebate the day before and sent it out. So they recommended that I go see a mac genius and see if I can get the screen replaced because I could no longer exchange it or return it (risk losing my rebates).

So, a bit upset that I was too prompt about getting the rebates in, I scheduled an appointment with a genius. When I spoke to him, he just went to the back and got the manager. The manager said instead fixing the screen, he'd liked to give me a new macbook and instant reimbursement for the ipod and printer! (the rebates I sent in will be rejected since the mac has been returned). The new macbook I noticed has a much louder superdrive seems to be working hard every time the computer wakes up and when I open it, but that definitely beats a chip on the screen. But now it doesn't go to sleep after the battery gets low, but instead shuts off.

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MacBook :: Shuts Down On 60% Battery Percentage?

May 5, 2012

My MacBook shuts down on random percentages when used on battery power. I can only use it for FIVE minutes before it shuts down. And as I said, it shuts down before the battery runs down to 0%.

MacBook, Mac OS X (10.5.8)

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MacBook Pro :: 13" Shuts Down On Battery Drain?

Sep 16, 2010

I have a 2010 13" MBP that will shut itself off instead of going to sleep when the battery is drained. I tried recalibrating and resetting the SMC, as well as disabling hibernate, but the same thing happens. The computer is barely a month old. Anybody else with a 13" experiencing this? I posted this issue on the Apple forums and someone replied stating that they heard Apple is looking into it, but usually occurs with i5 and i7 machines.

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MacBook Pro :: Shuts Down When There Is Still Plenty Of Battery Left?

Oct 27, 2010

My Macbook Pro keeps shutting down before I reach zero percent battery and often when the battery still has 25% left. I am wondering if this is a software issue that may be fixed or if there is something incompatible with my hardware. I am running 10.6.4 with a 2.16 GHz Intel Core Duo, 2 GB 667 MHz DDR2 SDRAM memory bought in April of 2007. My mac was originally running Tiger, but a few months ago I updated to Snow Leopard.

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PowerPC :: IBook Shuts Down - Battery Problem?

Nov 25, 2005

I have done all those PMU resetting stuff. The problem is that my iBook (1GHz, 768MB RAM, Tiger 10.4.3) keeps shutting off when I run it on battery. While plugged in there doesn't seem to be a problem. Here's what I've found out: This seems to happen only when I run the iBook from the battery. There is no pattern as to when it will happen: It might be fully charged, at 70%, 50%, etc. There are no warnings: The iBook just dies

To restart it I have to plug in the charger, I can't start it from the battery after one of these sudden deaths

If I press the battery indicator after a crash, it doesn't show any charge - no green lights
When I restart the machine the battery indicator will work, and it show's a charge in Tiger as well

I've done all that PMU resetting, PRAM resetting, etc. Doesn't work. Any ideas as to what this could be? Bad battery?

One more thing: I've run the hardware test, and it doesn't come up with anything at all.

Coconut Battery shows that my battery should hold a charge as well. Max charge is still at 3500mAh, 18 months and 750 cycles after I got the iBook.

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PowerPC :: Ibook Instantly Shuts Off While Battery 60%

Oct 27, 2007

I recently purchased an iBook used from someone locally. I got a good price because he said the battery was weak. However, I want to make sure that's actually the case. The power cord connection is not loose.

Coconutbattery says my battery is 36% health, but it also says it's not plugged into the charger when it actually is, so I don't know how reliable this program is. It says my mac is 27 months old, i have 367 cycles on the battery... etc. And I am running Tiger.

The problem is that the power meter on the top bar will say i've got a full charge... so I run the computer (on battery) down to about 60% according to the meter, but the computer instantly shuts off. I try to reboot, and it shuts off while rebooting. It's like the battery works fine and suddenly dies. I get about 30-40 minutes use out of the battery.

Is this the battery or do I have other problems? This only happens when using the battery.

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MacBook Pro :: 1strev Battery Lasts Until 76% And Shuts Off?

Jul 9, 2008

I have a 1st revision Macbook Pro 15" that's about 2 years and a few months old, and all of a sudden the battery will not provide power past approximately 76%. As soon as the the battery displays, 75% or 76% of the charge remaining, the laptop shuts off completely, does not warn me that my battery is low, and does not sleep or save the contents of my RAM - nothing it should be doing. The battery is only at 149 cycles as of today, and I don't have any sort of AppleCare plan. Is this something I can get replaced under a warranty, or would I have to shell out for a new battery? And is it even worth it?

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MacBook Pro :: Late 2007 Battery Shuts Off?

Jul 22, 2009

Recently my battery health has dropped to 21% with only 79 cycles. I have tried calibrating the battery and have always done it at least once a month. Just this morning I was running on battery power and it shut off with 65% of charge left. I'm off to college in a month and am wondering if Apple will replace my battery even though I'm not under warranty.

I would take it to an Apple Store but unfortunately the closest one is an hour and a half drive away. Should I try calling Apple?

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MacBook :: Shuts Down When Unplugged - Battery Is Good

Jan 10, 2010

I have a 3 1/2 year old Macbook, my Applecare has ran out. About six months ago my computer began shutting off immediately when unplugged. (Was letting my roomates use the computer, came home one day and it started doing this.) I believe that my battery is OK, it performs between 97% and 99% consistently. When I do the battery test, all of the lights light up.

I've read through the forums and it seems a lot of people are having this problem, but their batteries are bad. What are some options/solutions to this problem? I am willing to invest money wisely into the computer to keep it running smoothly for a while.

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MacBook :: Doesn't Indicate Low Battery - Shuts Down Unexpectedly

Mar 25, 2010

I own the first 'remolded' revision of the Macbook released in '08 (5,1), and have had it for over a year now. Recently though, after 10 or so minutes running off just battery power (fully charged), it shuts down unexpectedly. It doesn't say the battery is low, or near low, it just shuts down. It's really annoying, I have to use the charger wherever I go. I really need my laptop so I don't really want to take it to an Apple Store and have to wait a week to get it fixed, unless it's really necessary. My software is up to date. Any ideas on what my problem is/how to fix it?

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MacBook Pro :: Shuts Down When Closed With Low Battery - Is It Normal

May 7, 2010

Just wondering, is it normal that when i close the lid of my MBP at low battery (2-5 percent), it shuts down completely. When i plug it in and turn it on, it goes to the reload thing where it continues your previous session.

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MacBook :: Unable To Charge Battery - Shuts Down For No Reason

Dec 8, 2010

Sometimes my MacBook will shut off for no reason, and then it won't charge anymore. It takes a lot of effort to get it to start charging again, but I don't get it. I don't know what's wrong with it. It just started happening randomly, I don't know what to do. It's under warranty, but I wanted to see if anyone else was having this problem as well? If there's any quick fixes please let me know

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OS X :: Unable To Run System With Battery / Starts Up But Immediately Shuts Down

Feb 16, 2008

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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OS X :: Does Not Sleep, It Shuts Down, When Battery Runs Out After Snow Leopard?

Oct 31, 2009

Whenever my battery gets drained, my MacBook Pro turns off as if the battery was pulled out, I lose all my work when this happens.This started after I installed Snow Leopard, before, it would just go to sleep and my work is safe.

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MacBook Pro :: Shuts Down After Sleep When 2 Percent Battery Left

Feb 8, 2012

I have my mbp just 3 weeks old and I tried to calibrate the battery just few hrs ago. I continuously used my mbp until the battery level reached to 2% (the warning message showed when it was 6%). Just then I had to receive a phone call. When I was busy talking, I noticed that the mbp has gone to sleep mode but when I returned (2-3 mins later), I found it shut down. Well, I think it should have remained to sleep mode but it didn't.

Then after an hour I connected the power cord and switched on and noticed a progress bar which I saw for the first time. I have been charging it for 40-50 mins, now. Also the health of my battery keeps fluctuating between 95-100 %. istat shows this. Is this normal? So what I want to know is, Is this normal for mbp to shut down when the battery reach that low? OR there is some problem in my MBP?

MacBook Pro, Mac OS X (10.7.2), 2.4GHz, 500GB HDD

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MacBook :: 13" Shuts Down With A Seemingly Full Battery?

Jun 8, 2012

My computer was at 89% battery life (unplugged for approximately 30 minutes) and shut down unexpectedly and without any warning.  

Battery Information: 
Model Information:
Manufacturer:    DP
Device name:    ASMB016
Pack Lot Code:    0003


MacBook (13-inch Early 2009), Mac OS X (10.6.8)

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2008 Unibody MacBook Pro Shuts Down When Lid Closed While On Battery

Jun 12, 2012

I did some google searches, but could not find anything that was exactly my issue. I have a 2008 MBP unibody. If the MBP is on battery only and I close the lid, the notebook shuts down completely. This is even when the battery is fully charged. However if while plugged in and I do the same, the computer "sleeps" as advertised. I have reset both the SMC and PRAM to no avail. The main thing that bothers me is it seems like when this happens on battery, its almost as if the computer is getting a hard shut down. The machine acts as if the battery was pulled while the lid was closed and this is obviously not good for the hardware or sofware.

MacBook Pro, Mac OS X (10.7.4)

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MacBook :: 2009 Will Not Recognize Battery And Shuts Down After Boot-up?

Jun 24, 2012

the other night my girlfriends white 2009 Macbook (was updated to lion) stopped recognizing the battery. Only would boot when plugged into AC. I have other Macs so I tried different power adapters and switching in a battery that I knew was charged from another Macbook, and still did not recognize. Both batteries show 80% full or more when button pressed on battery. I moved it to my office to debug, requiring that I shut down and move the power cord. Then when I booted up, it started shutting down 10 seconds after reboot to user screen. I did the SMC reset and the PRAM resets, did Safe mode checking. Mac would still not "see" the battery or stay on for more then a few seconds even on AC. I then used the Snow Leopard install DVD and disc utilities, did a complete erase of the hard drive and reinstall of the Snow Leopard DVD. That took around 30 minutes, and the Macbook stayed on the entire time during reinstall. 1st boot after reinstall, stayed on long enogh to "set up" a user, then the shutdown problems appeared again.  

Not entirely sure, as the power light on the front has been faulty for over a year, so i can not see if it is "on", but if I plug in a thimb drive, the thumb drive light blinks as if it is getting poweer, I would think thta means the computer is on, maybe the display is just shutting off? I do not have the original install discs, just the Snow Leopard 10.6.3 install DVD and a Lion install thumb drive, how can I do a AHT? 

White Macbook early 20092 Ghz Intel Core 2 Duo2 Gb Ram
120 GB Harddrive
Serial W8909P004R1

MacBook, Mac OS X (10.6.3)

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MacBook Pro :: Shuts Down With A Full Battery, Resets Date

Jun 27, 2012

I have a mid 2011 Macbook Pro that has been shutting down randomly. It'll have a  full battery, but shut down when I unplug it or even sometimes when it's still plugged in. Every time I start it up again, the date is changed to Jan. 1 2008 and there's a notification that because it's set to that date, some applications may respond "erratically". It did this for about 2 weeks, then was back to working fine for about a month and now it's started up again. 

Today when I turned it back on after it shut down, a notification said to rebuild the iPhoto library. I didn't really know what it meant so I clicked OK because I thought it would help. Instead it erased my entire iPhoto library and shut down again.  

MacBook Pro, Mac OS X (10.6.8)

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PowerPC :: Ibook 14 Shuts Down At 50% Battery - Wrong Time At Startup

Jul 26, 2008

Purchased this notebook used, but very nicely cared for, excellent condition. I ran the Apple Hardware Test and everything passed including the logic board.

The battery has 500+cycles. The problem is laptop shuts down at 50% or less of battery. Clock is wrong at startup but is correct a few seconds later.

Runs forever and very nicely on ac power.

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MacBook Pro :: "Service Battery" Warning - What Can Be Done

Apr 17, 2012

My 15" Mid-2009 Macbook Pro is giving the 'Service Battery" warning. System information says: 

"Battery Information:   Model Information:  Serial Number:          W0934AD9777VA  Manufacturer:          SMP  Device Name:     bq20z451  Pack Lot Code:          0  PCB Lot Code:          0  Firmware Version:          3  Hardware Revision:          3  Cell Revision:          100  Charge Information:  Charge Remaining (mAh):          4477  Fully Charged:          Yes  Charging:     No  Full Charge Capacity (mAh):          4477  Health Information:  Cycle Count:          377  Condition:          Service Battery  Battery Installed:          Yes  Amperage (mA):          -1157  Voltage (mV):          12156"

So it looks as if the battery is OK, but it is not charging properly. I obviously have to take it to be repaired - but what can they do? I understood that they can't replace the battery, so what are the options? It has only been through 377 charge cycles - that doesn't sound a lot to me - but is it? Shouldn't a laptop that's only just over 2 1/2 years old still have a perfectly good battery?

MacBook Pro, Mac OS X (10.7.1), 2.66GHz Core 2 Duo - 4GB 1TB

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OS X :: Battery Not Recognized By Laptop But Working?

Sep 24, 2010

Strange problem just cropped up, Black Macbook, 10.5.8. The battery doesn't seem to be recognised by the laptop, but I'm typing on it now without the adapter. Before this it was still at 100% health with 50-60 cycles (around). Nothing else seems wrong, and when the adapter is plugged in it has the charging orange light and the laptop recognises it as a power source. Repaired permissions and restarted a couple of times, no change.

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MacBook :: How Long Does Laptop Battery Last

Nov 24, 2009

My laptop's 1-year warranty includes battery and the battery does not last long anymore. Does this mean that I can get a new battery with the warranty?

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MacBook Pro :: Laptop Shut Off When Battery Gets Down (5 To 10 Percent)

Nov 23, 2010

I'm having a strange issue with my MBP 1, 1. It's recently picked up a new habit that I find to be rather annoying. When the battery gets down to between 5 and 10%, the laptop will just shut off. No hibernation, no sleep, just a hard shutoff. The battery seems to be in good health; although it does have a high cycle count, I still get around 2 hours of usage out of a charge. I would think that a calibration would solve the problem, but with the hard shutdown, would that even be possible?

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MacBook Pro :: Laptop Battery Life In Gaming

Jun 18, 2009

You too Apple? It's at the end of the article but CNET got only 4 hours and 14 minutes of battery life on a 17" MBPro instead of 7 or 8 hours. But all these laptop makers play the same game. [URL:...]

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MacBook Pro :: Using Laptop With Half Battery Charge Right?

Jul 21, 2009

I like to know something about charging my 13" MacBook Pro. If I charge my mac 50% or any other % and use it, I mean not fully charge, is there any problem. If I continue listen music or browsing internet or both together how long my battery will run normally. Also what about watching movie,normally can i watch 3dvd movie.

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MacBook :: Leaving Laptop Plugged In Bad For Battery?

Feb 7, 2010

I've heard conflicting reports that leaving the laptop plugged lowers the battery life and that it is not true since it stops charging the battery. So is it bad to leave it plugged in all the time?

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MacBook Pro :: Laptop Won't Turn On Either Plugged Into Battery Or Not?

May 13, 2010

About a month ago I bought one of the new Macbook Pros, a 15 inch i7 version with highres matte screen.This morning I went to turn on my computer and I thought I had turned it off last night, but it turns out that I hadn't, so when I hit the start button it woke up and then promptly shut off. I haven't been able to get it to turn on since. Absolutely nothing happens when I push the start button, whether I have it plugged into battery power or not.

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MacBook Pro :: Keyboard And Trackpad Not Working When The Battery Is In The Laptop

Oct 13, 2010

About a month ago my Macbook Pro keyboard and trackpad stopped working when the battery was in the laptop. However, when I take the battery out and keep it plugged into an wall outlet, there are no problems. A USB external mouse/keyboard work fine, but its not easy to bring them everywhere I need my laptop. This may not be relevant, but when the mouse and trackpad are not working, the screen still dims when I place my hands over the speakers. I have bought a new battery, hoping that was the problem, but it made no difference. I can't check to see if my software is updated, because my software update is also functioning incorrectly. It takes an average of 5 hours for the software update to search, and it always comes up with "no available updates."

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PowerPC :: 12" IBook G4 - Battery Charges But Laptop Won't Power On?

Jun 8, 2009

I have a 12' iBook G4 (1.33 ghz) that took a tumble and the power connector snapped off inside of it. I took it apart, popped out the broken bit from the dc-in board, and used it until the battery drained. It worked fine until then.I bought a new power cord, but it failed to charge the battery, and after searching through countless forums, I figured the problem was the dc-in board. I bought a replacement, and just installed it. Now, the battery indicator lights (the four green ones) are showing that it's charging up. It's on three right now. But the computer still won't power on. No fan noise, no other lights. I tried the PMU reset, but nothing. It's weird.

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MacBook Pro :: Broken Battery Lock On Laptop - Dumb Little Piece Of Plastic Can Be Replaced?

Oct 2, 2006

The little white plastic doohickey that opens the battery compartment on my laptop (powerbook g4, I thinks) has broken off and now I can't open the battery compartment.I'm trying to find out if my battery has the appropriate serial number for the recall, but I can't open the battery compartment. Plus, the battery no longer works at all, so I have to use the AC adapter if I want to use the laptop at all--NOT GOOD!Does anyone know if this dumb little piece of plastic can be replaced, and if so how? (I'm sure it costs something like .000000003 cents to manufacture......)

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MacBook Pro :: Laptop Doesn't Turn On Because The Battery Doesn't Work

Apr 2, 2012

my laptop (macbook pro) doesn't turn on, because the battery doesn't work (may be because of moisture), and the 7 battery lights on the left side are off, and when I plug the charger in, the light on the magnetic socket turns on so dim ..

MacBook Pro, Mac OS X (10.7.3), MC 700

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