philip2311 wrote:
Thanks Allan and all the other suggestions. Here is some additional info requested in earlier posts:
Model: 15" Powerbook G4 1.67GHz. Year 2005.
The battery is fully charged - 5 green lights illuminate when I press the button on the battery.
This has the barrel type plug on the charger (not a MagSafe) - There is no change to the flashing/flickering amber light when I apply upward pressure to the plug's barrel, as Allan suggested.
The light flashes amber immediately when I plug it in, i.e. before I have plugged it into the AC outlet. Continues to flash after I have turned on the AC power.
When the powerbook was working normally, the plug light would glow a constant orange when charging and turn green when fully charged.
into
As mentioned before, there is no reaction/start up when I press the power button. I did note when the powerbook was working two days ago that when I powered up, the date and time needed to be reset. My question is: If the PRAM battery is completely flat will that stop the laptop from starting up?
Thanks again for everyone's help.
I am curious as to your "flow" of actions... normally, the AC Adapter would remain plugged (or be plugged) into the AC outlet - THEN one would plug in the barrel to the Mac. Curious to try this sometime, I am.
This is what one would expect - exactly.
Date/Time requiring reset is definitely PRAM battery. As has been stated (maybe in another thread?), some PBs need a live PRAM battery to startup (or disconnected from the logic board)
You haven't told us which PB you actually have (I think, I just 'scanned the thread') - I have replace the PRAM battery on my Powerbook G3 Pismo ( for your convenience from above > https://www.ifixit.com/Device/PowerBook )