OS X :: White Macbook Runs On AC Power (no Battery) But Not On Battery?
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.
View 13 Replies
ADVERTISEMENT
Apr 25, 2012
My macbook pro won't charge again or even start up if it runs out of battery power, so I use my wife's power cable it charges and starts .. I have to charge it with her's for 20 min, then I can use mine and it works fine ..
Info:
MacBook Pro, Mac OS X (10.6.8)
View 2 Replies
View Related
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?
View 1 Replies
View Related
Feb 20, 2010
my new white macbook runs slower on battery that when it is plugged in. The most noticeable thing is that the applications folder loads slower and is laggy to scroll in.
Unchecking put harddrive to sleep when possible did not fix the problem.
Any ideas or is it supposed to run slower to save battery?
View 2 Replies
View Related
Aug 6, 2009
Just doing my normal multitasking on my 17" it runs fast while with the magsafe plugged in but on battery its pretty slow. But then I am transferring a 100gb+ file while using 6 spaces with many apps running.
View 3 Replies
View Related
Jun 2, 2010
So my Macbook Pro has been working wonderfully, until recently when it runs out of battery it goes into sleep mode but when I plug in the power cord it does not do the restoring from how it was before (i don't know what its called, but its when the screen goes grey and the white bars go across until i can get back in) it does not show me anything so I have to press the power button and even then it does not show me that screen it just reboots (i don't hold it in but just press it normally like when booting it up) Then when it is booted the date and time are reset and the Wi-fi does not work. I have to reset the clock and it then works fine.
View 2 Replies
View Related
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?
View 14 Replies
View Related
Feb 28, 2012
Anyway, sometimes I'll leave my MacBook Air on without the power adaptor attached, and the battery will drain.That's all fine and dandy.The problem is, is that instead of going to sleep LIKE IT SHOULD, it will completely turn off, and everything I had up (web pages, anything and everything) will be GONE when it starts back up.
Info:
13-inch MacBook Air, Mac OS X (10.6.6), M-Audio Keystation 61es
View 3 Replies
View Related
Oct 20, 2009
I've got an early 2008 Macbook Pro and, recently, I've noticed that the fan (fans?) begins running from the moment the computer is powered-up. iStat tells me that both fans are running at about 2000 rpms, though I only hear a slight whoosing noise from the left side. I don't remember the fan running constantly, and I have noticed that my battery life seems worse than normal recently. Is this normal, and something I just haven't noticed until recently?
View 6 Replies
View Related
Jun 25, 2012
Macbook Air isn't a year old and I don't leave it plugged in ever. The battery might last 2 hours and gets very hot. In addition the fan runs at a very high speed. The computer won't shut down in a normal way. I have to hold the power button down to shut it off.
Info:
MacBook Air, Mac OS X (10.7.4)
View 1 Replies
View Related
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.
View 9 Replies
View Related
Feb 5, 2009
Right i've had my white macbook for a few months now, its at 91 cycles and 99% health... this morning i turn it on and the health has dropped to 86% !? any idea why this has happened, and if theres any way i can get it back up.
View 3 Replies
View Related
Jun 22, 2009
my macbook is only about 10 months old but my battery just started refusing to charge. the light on my magsafe lights green but the lights on the battery don't light. the battery icon in the status bar says (not charging). The battery says 0% and if i unplug the charger it dies instantly. do i need a new battery or is there something i can do?
View 1 Replies
View Related
Mar 23, 2009
I have a sleep problem with my MacBook (9400M White). I recently resolved a problem where it wouldn't go to sleep by itself if left inactive on battery power (regardless of energy settings) by resetting the SMC and PRAM/NVRAM but now something else has popped up. Now, whenever I cycle my battery down to past the low battery warning popup, it just eventually completely dies. Shouldn't it go to sleep first? That's what my old iBook G4 would do. I doubt it's something related to the SMC or PRAM/NVRAM since I just reset those. What else can I do? I'm pretty sure my MacBook should still have enough juice go to sleep.
View 8 Replies
View Related
Jan 4, 2010
I have just completed rescuing a water damaged MB C2D which was originally a 2.16 and is now a 1.83. Fun project for a cold Sunday afternoon. 5 hrs I have one issue with the MB and that is the charging of the battery. The battery icon sometimes shows 'no battery' or if it shows a battery is recognized, it isn't charging. The LED on the mag-safe charger is always green. The battery is from the water damaged 2.16 and my thinking is that it may have suffered damage from being exposed to water. Original owner left the MB in the backyard and it started to rain!
View 2 Replies
View Related
May 5, 2012
My Mac Book Pro forgets time, date and network password when battery runs flat. My software is up to date. The computer is about three years, but surely it shouldn't be necessary to change battery every three years?
Info:
MacBook Pro, Mac OS X (10.6.8)
View 1 Replies
View Related
Dec 5, 2010
I don't get this. My mom's white MacBook (Intel IGP model) showed an X across the battery like it doesn't work, so I bought her a new battery for it. However, I installed the new battery and it still shows an X but it actually does work. I figured it out by accident. I thought maybe I bought a bad battery. I tripped over the magsafe and the MB stayed on... confused, I am now here. Not finding much about this.
What causes OS X to display an X across the battery icon? Doesn't this usually mean the battery is ruined? When pushing the button on the bottom of the battery, it shows five LEDs as it's fully charged and working. I unplugged it several times, and the MB stays on.
It also reduces the screen brightness and seems to go into battery power saving settings when unplugged. So how do I get OS X to see the battery? It must be charging properly as it's not hot or bulging or anything at all.
The problem is simply that it's not showing the battery information at all as though there were no battery plugged into the MacBook. But it works as though it's plugged in and all is normal?
View 3 Replies
View Related
Mar 12, 2012
I am just curious if I can actually remove and replace the battery of my macbook white mid 2010 model with a special screw driver?
Info:
MacBook (13-inch Mid 2010), Mac OS X (10.7.3), Serial number: IQ0351EYF5W
View 1 Replies
View Related
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?
View 3 Replies
View Related
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!
View 2 Replies
View Related
Nov 16, 2010
Am I right in assuming that my MBP will switch off power to the Mini Displayport, when running on batteries ?Well mine does, but want to make sure that's right ?
View 11 Replies
View Related
May 29, 2010
I have a brand new MBP 17inch, the battery would not charge with the charger. It basically went close to empty and then I decided to shut down and restart to see if it will reset and start charging.. Now the MBP doesn't even turn on
View 5 Replies
View Related
Apr 4, 2012
I am wondering if my battery is losing its power? Fully charged I get 3 hours at the very most from it. I started this morning at 100% and after 10 minutes am down to 85%. This computer was purchased in 2008.
View 1 Replies
View Related
May 21, 2012
The 2011 macbook pro with i7 processor will not power up or charge at all. The problem started after my battery ran out and the computer shut down. Since then, when I plug in the charger only the green light turns on. In addition the light on the base (in front of the keyboard) flashes. Nothing happens when I hit the power button. The charger still works on other laptops. To emphasize, the screen will not even light up. It sounds as if the computer is starting (for less than a second) before stopping, only to start again but that is purely speculative.
Info:
MacBook Pro
View 2 Replies
View Related
Jun 13, 2012
Before buying a new 11" Air I need to know if one with the i7 OS would use appreciably more battery power than one with the i5?
And, since I am not a gamer or user of complex software, is there any real advantage to going with the i7 over the i5?
Info:
MacBook Air
View 2 Replies
View Related
Jun 23, 2012
My MacBook is still going strong, but in the event that the battery dies, will it still run on AC power?
Info:
MacBook, iOS 5
View 2 Replies
View Related
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.
View 10 Replies
View Related
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.
View 2 Replies
View Related
Aug 20, 2010
I calibrated my battery for the first time since Dec. When I plugged it in this morning, it took 3 hours to charge all the way, and now it's stuck on 99% full, 0:00 till completely charged, and I'm getting an error when I click on the battery in the menu bar that says "Service Battery". When I click on the error, it tells me that it may not be functioning properly and to take it to an authorized apple service retailer. Before I waste 2 hours by going to the Apple store and back, has anyone else had this problem, and is there a way to fix it without having it looked at?
View 4 Replies
View Related
Jan 6, 2009
I get the whole part about that I set my laptop to go to sleep in 5 minutes, and if I close the lid it'll go to sleep, and the little light at the bottom starts to pulse, etc. But in sleep mode, my battery seems to drain extremely fast!
For my old Gateway M275 laptop while in sleep mode, it would probably lose about 5-7% of it's battery in a day's duration. With my MacBook Air, I just came back to it tonight after a day's worth of sleeping, and my battery was down to 16% from 29%. And to check, it was indeed sleeping!
View 6 Replies
View Related
