New To Mac-Forums?

Welcome to our community! Join the discussion today by registering your FREE account. If you have any problems with the registration process, please contact us!

Get your questions answered by community gurus Advice and insight from world-class Apple enthusiasts Exclusive access to members-only contests, giveaways and deals

Join today!

 
Start a Discussion
 

Mac-Forums Brief

Subscribe to Mac-Forums Brief to receive special offers from Mac-Forums partners and sponsors

Join the conversation RSS
Apple Notebooks Apple's notebook computers including MacBook Pro, MacBook, MacBook Air, PowerBook, and iBook.

PowerBook - Shuts down on battery, sleeping works fine


Post Reply New Thread Subscribe

 
Thread Tools
bartvh

 
Member Since: Jun 02, 2008
Posts: 6
bartvh is on a distinguished road

bartvh is offline
After disconnecting the power chord i typically have only several seconds until my PB G4 shuts down down completely, making a sound similar to a hard reset (pressing and holding the power button). Sometimes it will try to come back to life (fan spins up for < 1 second, then the reset sound again), it might repeat those sounds several times.

The funny thing is i can put it to sleep (close the lid), unplug it and leave it for hours before waking it back up, as long as i plug it back in beforehand. This rules out a faulty battery, which by the way i've only had for a few months.

To further complicate things, the DC power contact (the power socket in the PB) is wearing out: the yellow light ring will die when moving the power chord around and i have to fiddle with the connector slightly to establish proper contact again (without it my PB shuts down ). The issue seems very mechanical: leaving the power chord and connector untouched, it never breaks contact.

Can anyone tell me what hardware part is the culprit? If its not too expensive i will buy a new one and replace it myself. Could it just be the DC connector confusing the system when unplugged?
QUOTE Thanks
technologist

 
Member Since: Mar 30, 2004
Location: USA
Posts: 4,744
technologist has a reputation beyond reputetechnologist has a reputation beyond reputetechnologist has a reputation beyond reputetechnologist has a reputation beyond reputetechnologist has a reputation beyond reputetechnologist has a reputation beyond reputetechnologist has a reputation beyond reputetechnologist has a reputation beyond reputetechnologist has a reputation beyond reputetechnologist has a reputation beyond reputetechnologist has a reputation beyond repute
Mac Specs: 12" Apple PowerBook G4 (1.5GHz)

technologist is offline
Quote:
Originally Posted by bartvh View Post
...This rules out a faulty battery, which by the way i've only had for a few months.
Well, it rules out a totally dead battery. Your battery is probably mostly dead. (Mostly dead is slightly alive. ) It's not hard for a battery to be alive enough to supply enough power to sleep, but not enough to actually power the computer. If it's the original battery on a PowerBook (the last of which were discontinued two and a half years ago) then it's probably a natural death from old age.

Quote:
To further complicate things, the DC power contact (the power socket in the PB) is wearing out: the yellow light ring will die when moving the power chord around and i have to fiddle with the connector slightly to establish proper contact again (without it my PB shuts down ). The issue seems very mechanical: leaving the power chord and connector untouched, it never breaks contact.
It's hard to say from your description, but if I were you, I would hope that the wear is on the power adaptor plug and not the PB itself. The adaptors are easy to replace (and they do wear out often.)

PowerBookMedic, iFixIt, and other sites sell replacement DC-in boards, but installing them is a chore. (PowerBookMedic and iFixIt have instructions and pictures online.)
QUOTE Thanks
bartvh

 
Member Since: Jun 02, 2008
Posts: 6
bartvh is on a distinguished road

bartvh is offline
I have replaced my battery in the past, the current one is about 1.5 years old and only has 87 load cycles according to coconutbattery. The capacity has dropped to a 57% already, probably because of my battery unfriendly usage pattern (keep using the power chord with the battery at 100%, left the PB it in the closet for a few months at 100% etc.)

At least i'm not convinced the battery has died of old age.
QUOTE Thanks

Post Reply New Thread Subscribe


« I'm having a weird HDD error with MBP... | New 17" MBP Battery Replacement--$179 »
Thread Tools

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off
Forum Jump

Similar Threads
Thread
Thread Starter
Forum
Replies
Last Post
shuts off when power cord unplugs, even though battery is fully charged! sarahbeths Apple Notebooks 5 09-13-2007 10:16 PM
Powerbook 15" Battery Discharges While Sleeping oragano Apple Notebooks 4 03-08-2006 03:13 PM
Strange Battery Behavior - Battery or PB Problem? spiff72 Apple Notebooks 2 11-13-2005 12:21 PM
DVD2one - backin up DVD's works fine but... louise Movies and Video 4 03-19-2004 09:15 AM

All times are GMT -4. The time now is 02:52 PM.

Powered by vBulletin
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
X

Welcome to Mac-Forums.com

Create your username to jump into the discussion!

New members like you have made this community the ultimate source for your Mac since 2003!


(4 digit year)

Already a member?