PowerPC :: Light Goes Out And Ibook Switches To Battery Power
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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Sep 17, 2010
Basically I'm having issues with my newly acquired Powerbook G4. When i bought it the battery was not working at all so have now installed a new replacememnnt battery which works fine but having some slight issues. So...
First time I charged it, it reached 100% but green light never came on to indicate full charge. When I run the PB off the battery it gets to 20% and it shuts down without any warning it's low on battery (trying to switch it on after this is impossible, it clearly has no life) After the above I connect the power lead and start up the computer, the battery indicator starts charging from 20% onwards. Something fishy definitely going on and I have no idea what it could be, I calibrated the battery but it has always cut off at 20% since first charge/discharge.
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Aug 3, 2007
I have an 14" iBook, 1.07 GHz and it won't use battery power. As soon as I unplug it it turns off. It worked fine until I opened it up and swapped in a DVD-RW and a new hard drive (the old one was failing). In the power section of system profiler it shows 98 load cycles and about a 75% remaining capacity. It may or may not be charging - I can't tell. The battery says it's fully charged at 95% and I have no way to drain it and see if it will recharge because the computer won't drink from the battery. I had another 14" iBook battery laying around that I thought worked, but now when I put it in this computer it just sits at 0% then eventually says the battery is dead (the menu icon shows an X through it).
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Sep 16, 2008
My iBook G4 occasionally cuts out without warning when it's being powered by the battery.The battery still seems to have charge - it will light up all 4 charge lights when the button on the battery itself is pressed.It also boots back up straight away when the power on button is pressed after having cut out.This has never happened when the iBook is plugged in to the mains supply.
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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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Jul 20, 2006
My ibook g4 (about 15 months old) switches itself off when I move it. Then have to force turn off (holding start button down for 10 secs). I then have difficulty turning back on, in that most off the time the fan just starts, with no startup noise, and the computer just doesn't turn on except the fan. After a few tries it eventually works, but its hit and miss. Its my first mac and I'm really scared something major is wrong that will cost a fortune to fix?
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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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Sep 25, 2009
I have a 2008 Macbook and when the power is plugged in, the light is green, however my battery will not charge, and it even says at the top "battery is not charging" If I remove the power cord from the computer it will still run off the remaining % of the battery, but If I reconnect the cord it lights up green and I never see the amber charging color. I traded out my battery as well as a different cord and still the same results. My battery will charge up on a friends macbook, but not on my own. I want to take it to the apple store but I'm at school and there is no store near me.
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Jun 27, 2012
power plug light is not strong and battery says not charging
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Jun 28, 2012
The battery don't charge and the power adapter light stays green, I didn't noticed it before the battery was empty. I have had problems with the adapter before and just reconnected the power a couple of times and it starts to charge again and the light turns orange but if I touch the adapter now the computer shuts down.
Info:
MacBook Pro, Mac OS X (10.6.8)
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Feb 10, 2008
I have a iBook G4 laptop and there seems to be something very wrong with it. It started a few days ago just randomly. I was reading something on the internet and the screen went black on me, but the power was still on (I clicked CAPS LOCK to see if there was power). I then proceeded to push the power button and the power went off. When I pressed the power button again to turn it on, it made that internal noise it always makes and then the fan came on, and wouldn't turn off. There was no picture on the screen at all. Completely dead. But there was power, because when I clicked on the CAPS LOCK, the light came on). I tried pressing on the power button for at least 15 seconds and even went as long as a minute, and the power didn't go off.
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Jan 23, 2008
I've got a G4 iBook that came in because the user thought the battery was dead. I tried the usual fixes, PMU, NVRAM, PRAM, different power adapter, etc. When I ran some tests (Coconut Battery) to see if the above worked, I found that the problem wasn't the battery (it still has 3888 mAh out of 4400). The symptom: The AC light alternates between green and amber even though the battery is only at 18% charge. It will stay amber for about 45 seconds then switch to green, vice-versa. It has been plugged in now for 2 hours + and has gone from 16% to 18%, so it does seem to be charging. I have adjusted the power saver so that the machine doesn't go to sleep or have the display dim as I thought sleep mode may have something to do with it.
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Dec 1, 2007
The iBook battery will not charge nor will the light on the charger show any color when plugged in. The battery time until full charge icon is stuck on "calculating."
1) The charger is fine since I checked it on another iBook. (Light comes on and changes appropriately.)
2) I have multiple batteries so any one individual battery is not the problem. Also it registers the proper charge capacity.
3) I've reset the PMU and it does not help.
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Apr 5, 2007
My iBook G4 power supply failed and I'm awaiting a replacement. In the mean time, can I use the power supply from my iBook G3 with the iBook G4?
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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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Aug 29, 2007
I searched forums etc. I have a 867 12" powerbook. The problem is that it will not turn on at all. I took the battery out and pressed a few key and it worked for a little while. Now when I plug it up to recharge the light goes green to red then off. I found a so called reset button on the apple site and lifted the keyboard and it is not in site.
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Dec 12, 2010
My brother has a second gen, 800Mhz eMac (the one that could be overclocked to 1.33Ghz - the earlier PC133 ram model). Since about 1.5 mths ago, when he powers it on, sometimes it will not power on, and other times it will give three beeps (diagnostic pages say bad RAM) and a flashing power/sleep light in unison with the beeps. Did this vintage suffer bad caps? I recall that it was only the 1.25Ghz model that had bad caps, but I could be wrong.
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Jul 21, 2009
I have a G5 dual 1.8 power PC...Bought some ram put it in & booted up. Then a red light came on the logic board behind the power button. The machine wouldn't turn on....I called apple care & we rearranged the ram, now the red light is gone but my system still won't boot up. The white power light blinks every few seconds... the apple store told me sorry can't help because your machine is vintage. Even if my logic board is fried is there a place to buy one on the cheap?
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Aug 28, 2006
iBook G4 about 9 months old. I checked the battery recall and my first few numbers match, but not the second set, so I'm guessing I'm ok. The battery has been more than awesome but past couple days it has been a little weak. Today however is bad. Battery is now at 89% and says 0:27 until Full(it's charging right now). Earlier I was running just on battery and within 10 minutes it went from 99% to 86%(which is when i plugged it in). Usually it says around 5:00+ hours but it was at 3:30 hours@99%. Still with me? What I am wondering is if there is a simple solution to this and maybe the battery isn't connected in all the way or something. Or if it is failing(randomly out of nowhere) what to do and how much to replace. Or to call apple and check about the recall. I want to say it's coincidence that this is going on now after I just heard about the battery recall. Oh, and FYI maybe this helps. Last night I did leave it on the whole time with it plugged in. I was downloading a large ISO and didn't stay up for it to finish. That is the first/only time I've done that. I'm stupid. I wasn't thinking straight and the 0:27 thing is exactly what it says. 27min until the battery is full, not until the PC dies. Otherwise I need help with the other problems. I will be calibrating it today as well.
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Nov 11, 2006
I did a thread search and could find lots of instances of an ibook not seeing or using the battery, but I seem to have the opposite problem. I have an ibook g3 700mhz (dual usb). It will only boot and run off the battery. It will not boot or run if it is only plugged in (dead battery or no battery = no running or booting). When plugged into a 45W white charger (that works on other ibooks of the same ilk), it will be green without battery and orange when the battery is in. It will not charge a battery. I've tried:
two other dc-in boards and cables known to work in other ibooks
two different batteries (that charge in another machine)
PMU reset (the light on the charger changes to green for 3 seconds, seemingly indicating the reset was done correctly)
for fun I put in a hard drive that worked in another machine and added ram that works in another machine all to no avail. What the heck is going on?
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Mar 6, 2007
My iBook used to come up with an alert that it was using reserve power, and then automatically go to sleep, so I could wake it as soon as I plugged it in. Now, there is no warning, if it gets to 0% it turns off, NOT sleeps but turns completely off without shutting down. This means any unsaved work is lost etc, its not at all good. Can anyone tell me how to fix this? (I have Tiger, iBook 1.44Ghz, 1.25 RAM)
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Mar 14, 2007
My iBook G3 800 MHz will not charge any more all of a sudden. I have tried plugging it in to several power sockets and it won't charge. Whats more... I tried charging it with just the normal charger, and I even tried charing it with the extension wire! I am not sure if it is the charger, or my iBook. If it is the iBook, should i rip it open and get a new part for it? If it is the charger, where can i get a new one?
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Sep 8, 2007
My mum has an trusty iBook G4, and finally, after ~4 years now, the battery is on the fritz. I have tried resetting PMU, but it appears the battery itself is on the way out. Is it worth purchasing a new battery for it? Or should I tell her to take the plunge and buy a low-end Macbook [non pro] to replace it?
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Oct 31, 2007
Recently my friend came into possession of a used iBook G3 (I don't know the specs off hand; but it runs Tiger okay), and ran into a slight problem. It appears as though the battery doesn't fully charge, and loses power 5 minutes after it being unplugged. I've looked at the battery, and it appears okay--although possibly lose. I'm sure that Apple wouldn't do repairs on it anymore, but does anyone know why the battery might not be working? If specs are needed I can provide them. But its an iBook G3 running Tiger.
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Mar 14, 2009
I just tried to charge my iBook, and it won't charge. If I unplug the charger from the mains socket, and plug it back in, the ring around the charger will turn green for about a second and then turn off. I've tried to restart the iBook, and I've removed the battery from it also.
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Mar 13, 2010
I recently bought an iBook G4 off eBay. There is one issue with it and I am not sure what is causing it. The battery shows it has about 35 charge cycles, and when it is fully charged it says around 5-6 hours of battery life left. I will use the laptop for around an hour, at which point the battery life is at around 80% with around 3-4 hours remaining. All of a sudden, the computer will go into sleep mode and when I plug the charger in, the battery is at 0% and charging! I am not sure if this is a bad battery that is old and can't hold a charge, or what. I have already tried resetting the PRAM and PMU but with no luck.
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Jun 4, 2010
I got myself a new battery for my iBook Clamshell however it won't detect it and thus runs off AC power.
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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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Aug 18, 2006
i have a g3 ibook here, and after having plugged in to charge for 4 hours, the battery meter on my menu bar still says only 12%, but three hours of life remaining. or, if it says 80%, i have 22 hours of juice. how do i fix this bullcrap?
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Oct 6, 2006
i have a Clamshell iBook that until yesterday had a perfect battery but it now charges only to 27% what should i do? i have tried the battery reset apple application Battery reset 2.0.
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