No Mains Power or Battery Chargeup, Not a Battery or Power Adaptor Fault

I have an iBook G4 12" purchased March 2006. It's been heavily used but the only problem I've had with it was last year it developed a tendency to shut down without warning. This was solved by taking the battery out and hasn't been a problem since I replaced the power lead. So otherwise no problems with the computer.
I mostly use it on the mains but a couple of times a week have it for 30 mins on battery. A few weeks ago it started to struggle charging up afterwards. A change of "routine", eg. plugging it into a different socket or adding the extension to the power adaptor, would trick it into working again. But the problem got more frequent until, a couple of weeks later, it was charging up then suddenly switched into battery mode and has been stuck there ever since.
I have changed the battery and power adaptor and this has made no difference.
A couple of odd things to note: using the old battery (5 mins a day for emergencies) it had got down to 35% then the Software Update launched and the battery suddenly dropped to 0% and went to sleep. This is when I had to buy the new battery. Also, when I pull the plug out of the mains with the barrel connector still in the computer, instead of the LED going out instantly it stays on for 10 seconds then fades out.
I've had a couple of tricks suggested that have failed: powering up through the mains with no battery in, also pressing ShiftControlOption for 5 seconds before powering up.
Please does anyone have any suggestions as to what might be wrong? Thanks.
Message was edited by: ValW

The charge and run issues may be related to a failing DC in-board.
You may be able to get the correct part and replace it yourself, or
have a repair tech do the task for parts-plus-labor charges.
There are some DIY pages online, such as those from iFixit:
http://www.ifixit.com/Browse/iBook_G4
Good luck & happy computing!
+{ PS: Hello, and welcome to Apple Discussions! }+

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Here is what Apple says to do with an iMac that won't start, it's from the owner's manual.
If your iMac won’t turn on or start up Â Make sure the power cord is plugged into your iMac and a functioning power outlet.
Â Restart your computer while holding down the Command (x) and R keys, until the computer restarts. When the Mac OS X Utilities pane appears, select an option to repair your disk, restore your software, or reinstall Mac OS X and Apple applications. For more information, see “Repairing, Restoring, or Reinstalling Mac OS X Software” on page 44.
42 Chapter 4 Problem, Meet Solution
Â Press the power button (®) and immediately hold down the Command (x), Option, P, and R keys until you hear the startup sound a second time. This resets the parameter RAM (PRAM).
Â If you recently installed memory, and your iMac sounds tones every five seconds, make sure that the memory is correctly installed and that it is compatible with your iMac. Check whether removing the memory you installed allows your iMac to start up (see page 38).
Â Unplug the power cord and wait at least 30 seconds. Plug the power cord in again and press the power button (®) to start up your iMac.
Â If you still can’t start up your iMac, see “Learning More, Service, and Support” on page 54 for information about contacting Apple for service.

Power adaptor and battery HOT!

This is the message I sent to Apple a few minutes ago. Maybe some of you can have some answers as well. Thanks!
"Dear Apple,
First of all, I would like to kindly express my apologies for using the feedback form to send you some thoughts about my MAC. I did not know who else to address to.
I have bought my MAC in September 2009, through the Apple Store online. It has been delivered in Norway, where I am living in the present.
Unfortunately, I have never been very satisfied with it, due to two main issues.
First, I have noticed a problem with the battery and power adaptor since the very first day. They are both heating up very fast, after just some minutes, and then the mac is really, really slow (even if I have just one open application). I have tried a few times to go to a service provider in Oslo, but they said it's working fine. The first time I had a visit with a service was in the first week after I bought it. Then, when I had this screen problem, so I took advantage and I asked them to check again the battery (they had it for a week or two). They said it was fine. A few weeks ago I visited 3 different services with the same issue - no problems found.
Of course one could say that this is the proper way of working of a mac, but how can a mac work so slow when they all say it is so fast? I have asked around and none of my friends had a similar problem, since they've purchased it.
I decided to write you now due to the fact that a few days ago I had to use a friend's mac for some hours (which is older than mine, a simple MacBook; plus, he uses it much often than me). It was working perfectly! Not at all slow, no heating.
Then yesterday I had my power adaptor plugged in for half an hour - then I saw that the mac was not charging (how come?). When I touched the power adaptor, I literally burned my finger. Of course I got scared as well. I tried to change the power adaptor with another one - it did not get so heat up, but the battery of the mac was still burning, as usual. I used to keep my old PC in my lap, with the mac it was always impossible, unfortunately.
With lots of regrets I am writing this message. I have never felt that I had a 'real mac', like the other friends of mine, although I was so excited in the beginning. I sincerely hope that I am a unique user.
Now I am planning to sell it to someone (I don't think I can get even half of the price now, since it is pretty old) and get back to some usual PC. With all the regrets in the world, again, because some of the features were indeed really cool (like the trackpad, for eg).
Thank you for reading this! Good luck with your future products! And may God rest in peace Steve Jobs, I hope the business will not be affected.
Best regards,
Cristina Moldovan"

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http://docs.info.apple.com/article.html?artnum=75448
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As for the display resolution the 867 Mhz TiBook was released on this release as a:
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Ibook G4 freezes when using mains power

Hi There
I'm looking for a bit of help, hopefully someone might have had a similar problem.
When using mains power my ibook freezes with the screen visible but nothing moving including the mouse arrow. The only way to shut it down is to keep the power button pressed. The only way to restart it is to keep the power button pressed. This doesn't always work though. Sometimes the fan whirrs and sometimes there is a whirr and then a beep. Sometimes the start up chimes can be heard and nothing happens.
Generally after 2 to 3 attempts the computer launches and lasts for about 15 minutes before it freezes again.
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the cable mentioned runs inside the iBook though, not the power adapter cable.
adapter plugs into the connector, which is part of the "DC-in board", then there is a cable inside running to the logic board.
looks kind of like that:
http://www.welovemacs.com/9226647.html
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Should "Powerbook Titanium Gig Ethernet" run on mains power alone?

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My Powerbook won't turn on.
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Eventually it just gave up the ghost and crashed completely.
I understand that the battery probably needs to be replaced.
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Not necessarily. It could still be a power supply issue. Make sure first that there is no possible sign of fraying*:
http://www.macmaps.com/frayguide.html
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- * Links to my pages may give me compensation.

100% correlation with main instability and battery...

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Hello Fabio
Its a strange issue but firstly you can check the power settings in the wireless card properties. Please go to Device Manager then right click on Wlan card ->Properties.
There you should find a Advanced tab. All settings should be set to Use default value and Highest.
Best regards

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Reset the SMC > Intel-based Macs: Resetting the System Management Controller (SMC)
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Followed by resetting the PRAM > Resetting your Mac's PRAM and NVRAM
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4. Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.
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I have a 1st Gen, MacBook Pro from 2006. For the last few years I've had to us my power adaptor as my battery no longer works, and shuts down after 30 seconds it. Now my power adaptor looks like it's coming to an end. Even though it's securely fitted, it often switches off.
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OWC has batteries for 1,1 generation MacBook Pros and they ship internationally - http://eshop.macsales.com/.
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Good luck,
Clinton

No Mains Power or Battery Chargeup, Not a Battery or Power Adaptor Fault

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