Question about Apple PowerBook G4 Mac Notebook

1 Answer

Won't Charge My computer's battery won't charge, I know it is not the battery because I just put a new one in it.  I believe the motherboard is bad because I've had this happen before where it won't charge but the power supply still keeps the computer alive.  Once the power supply is cut off the thing totally stops.  Is this definitely the motherboard and if so how much are motherboards for a Powerbook G4?

Posted by on

  • Anonymous Nov 09, 2008

    I have tried all the resets the plu, the smc, all of them.; Not working. I tried replacing power supply and the battery. it charges in other powerbooks but not mine. I measured the output coming out of the battery port of the laptop the eight pins voltage is:(pin/voltage) 1/.703v 2/.703v 3/0v 4/3.29v 5/3.29v 6/3.16v 7/0v 8/0v. these are the readings wether the powerbook is on or off(just pluged in). Cn anyone help? Its a powerbook G4 1.5ghz

×

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Governor:

    An expert whose answer got voted for 20 times.

    Scholar:

    An expert who has written 20 answers of more than 400 characters.

  • Expert
  • 186 Answers

Common fix for this problem is a simple Power Management Unit (PMU) reset. This will basically re-sync the battery "brain" to the computer so they when when to charge and when to stop. To do this, simply turn your computer off, remove battery and power cord and hold the power button down for 7-15 seconds. Then you MUST wait 15 seconds after pressing the button before applying power or inserting battery. 75% chance this will fix your problem. If Not, Replace Adapter/Charger. They have a microchip in them that can go bad that senses when to send more current to charge battery. Apple motherboards are generally better built so I'm not suspecting that at this moment. Let me know what you find out.

Posted on Jun 20, 2008

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Battery won't charge


try different power supply first then go to ebay and look for inexpensive replacement.


May be the internal aspect of the battery charging system. Some batteries die from bad cells or some die from bad circuitry inside battery. Sometimes the computers circuitry goes bad but everything else is fine. probably bad power supply, or bad battery.

Feb 12, 2014 | Apple Computers & Internet

1 Answer

Macbook won't charge


Your battery is probably not working anymore. Go to an apple store and ask for the repair.

Oct 24, 2012 | Apple MacBook Laptop Computer Mac...

1 Answer

Macbook pro won't start/charge


It appears as if your power supply is dead. The power supply is inline with your power cord and has a light on it, if I am correct. Since the green light was dim, then went out all together on your power supply, that would indicate that it would not take a charge any longer, and the dim light, down to none, was the rest of your battery draining. Assuming you tried multiple power outlets, my suggestion would to borrow a power source from a friend and check it, or go to best buy/Apple store and have them use one of theirs to see if it comes on.

Sep 25, 2012 | Apple MacBook Pro Laptop Computer with...

1 Answer

Even with battery charged, sometimes the machine won't turn on when unplugged


It sounds as though you have a defective battery. You will have to go through Macintosh for assistance.

Apr 27, 2012 | Computers & Internet

1 Answer

Apple mac won't charge


It may be the battery, go to the apple menu then to about this mac then click on more info then look for power and it should show what the condition of the battery is. The health information is shown if it says check battery it may need replaced, if you are under applecare get in touch with apple and see what they say. Failing that take it to the nearest apple store and see what they say at the genius bar. Hope this helps.

Jan 11, 2012 | Apple MacBook Mac Notebook

2 Answers

Charging does not charge


If your Notebook computer battery is not charging, try the following:
  • Reset your computer's power manager. For information on how to do this with your specific model, search Apple Support.

    • Make sure your AC adapter is properly inserted into your laptop.

    • Connect your computer to its AC adapter, shut it down, and then let it charge overnight. If it does not charge, it's likely you have a hardware fault in your computer, battery, or adapter, and you should have it repaired.

    • Test your AC outlet. See if your battery will charge if you plug it into a different outlet, or see if another electrical device will work in your original outlet.

    • Test your AC adapter. Try connecting a different AC adapter to your computer and see if it recharges.

    • If it's removable, test your battery. Try using a different battery with your computer and see if it will recharge.

    • In some of the early PowerBooks, the battery will not charge unless the computer is turned on. If you have an old PowerBook and your battery isn't charging while it's turned off, power it on, put it to sleep, and then see if it recharges.
    If you go through all of these steps and your battery still won't charge, or you can't narrow down the source of the problem, you will probably need to have your computer repaired. However, it may be worth your time to consult Apple Support first. It contains entries on problems with specific computer models and versions of the operating system, including battery recharge issues.

Aug 10, 2010 | Apple MacBook Air Mac Notebook

1 Answer

I was on my Apple Mac Book when all of a sudden it turned off :(


i think that the battery has had its last run. Plus the computer want into safe mode and froze and force shut down. this is not bad. this just means you have o get a new battery cord. i have had the same issue.
CATION: charging again may result in sizzling or fire.
i had my charger start to sizzle

Jun 18, 2010 | Apple iBook Mac Notebook

2 Answers

G4 ibook works off charger, but not battery. battery at 75%


Replace your battery.
When a battery is dead, the charge level it reports is meaningless. When a battery reports a charge but still won't keep your machine running for more than 30 seconds, it's dead.
The fact that the OS knows when the battery is present or absent doesn't mean anything, as it it just reading the presence of the battery interface board.

Sep 24, 2009 | Apple iBook G4 14-INCH Series M7701LL/A...

1 Answer

Mac battery performance


The battery has a charger limiter that prevents the battery from charging when full charge is reached, therefore connecting the Mac to power with the battery inside will not affect your computer's battery life.

Regards

Mar 05, 2009 | Apple iBook Mac Notebook

1 Answer

My Apple powerbook G3 Mac wont boot up


Hi trunzo,

You need to be aware of a couple of issues with PowerBooks.

1) The plug connection (where you plug into the laptop) attaches to the Audio card. This is a point of frequent physical connection failure, either due to abuse or even significant normal wear & tear. It continued being a problem until Apple came out with the MagSafe connector on the Intel MacBooks. If this is bad, you won't be able to charge your battery, so this will need to be determined first.

If you're lucky, you might try plugging it in and _gently_ applying gentle lateral pressure on the plug - - you might be able to _temporarily_ get a connection (the plug should light-up and your battery (if present) should charge. I've been able to get this to work if the break in the sound card isn't too serious, but eventually, this won't work anymore.

2) These computers are now getting to be 8-11 years old. In computer terms, this is advanced old-age, well beyond retirement. While I personally liked the modular design of these computers (I own 4 Wallstreets, all but one are for parts), I wouldn't consider putting a lot of money into these unless I was going to use them as an old-fashioned case for new internal electronics - - for example, dropping in a motherboard/RAM/CPU from a newer MacBook Pro. (The real killer would be replacing the display - _major_ technical challenge there. And there we're talking a _lot_ of money and lots and lots of spare time to do the engineering. Unless you're doing it for a hobby, its not worth it.) Trying to restore one of these to working condition is going to be a challenge in just finding parts or a battery that isn't completely played-out.

If you want to explore this further as a DIY (Do It yourself) project, I highly recommend iFixit.com as a good source for both how-to guides and replacement parts. The URL for the Mac how-to guides is

http://www.ifixit.com/Guide/Mac

If I can be of further assistance, let me know. If this helps or solves the issue, please rate it accordingly.

Thanks in-advance for using Fixya.com,

Jon

Jan 23, 2009 | Apple PowerBook G3 Mac Notebook

Not finding what you are looking for?
Apple PowerBook G4 Mac Notebook Logo

333 people viewed this question

Ask a Question

Usually answered in minutes!

Top Apple Computers & Internet Experts

paulcarew

Level 3 Expert

2046 Answers

Martin Buck
Martin Buck

Level 2 Expert

81 Answers

MarkMAlford
MarkMAlford

Level 1 Expert

6 Answers

Are you an Apple Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...