Lombard Battery Charging — #12

Post #12 by Bunsen

Source Forum	68kMLA
Category	Troubleshooting
Post Date	Fri, 15 Aug 2008 - 19:54
Original URL	https://68kmla.org/bb/threads/lombard-battery-charging.14460/

Post

Just as an opposing data point:

Date: Thu, 10 Jul 2003 10:49:58 -0600From: Swift

Subject: Powerbook G4 Battery Resuscitation

I too had a battery that my Titanium Powerbook G4 failed to acknowledge even tho the level lights showed a fully charged battery. Resetting the PMU did nothing- went to the Genius bar and they swapped it into their Powerbook but it still failed to be recognized. / I decided instead to fully discharge the battery to reset its internal power management chip but since no Powerbook would recognize it, I removed it and carefully wired in a 12 volt car tail light bulb. Ran it overnight- then placed into my powerbook and it has worked flawlessly for the past 2 months. (I also found that you cannot hook it to a "power hungry" 12 volt appliance because the internal power manager will not let it be drained too quickly.)

That's from the macintouch page linked previously.

So from this I take it that the object is to drain the battery completely to nothing, whereupon the internal IC has brain failure and forgets everything.

I'm not trying to start an argument or disagreeing: I'm researching what to do about my own battery and I'm interested in your comments.

Note: a short circuit through a wire would for def count as a "power hungry" load.