How long since a battery conditioning reset?
ABD:
Some enlightment here please.
There was a thread here earlier that indicated the current family of batteries have no "memory" and cannot be "reconditioned"
"Parker" led me to an application called "cocanutBattery" that provides info as to the condition of your battery, charge state and compares it to its original condition.
What are you refereing to "battery conditioning reset"?
I used to have a 1400 laptop and there was a "reconditioning" application that worked on that family of battery.
Daryl
From Apple <Standard Maintenance>:QUOTE
For proper maintenance of a lithium-based battery, it’s important to keep the electrons in it moving occasionally. Apple does not recommend leaving your portable plugged in all the time. An ideal use would be a commuter who uses her MacBook Pro on the train, then plugs it in at the office to charge. This keeps the battery juices flowing. If on the other hand, you use a desktop computer at work, and save a notebook for infrequent travel, Apple recommends charging and discharging its battery at least once per month. Need a reminder? Add an event to your desktop’s iCal.
also...
<Exercise your battery>.QUOTE
Lithium-ion batteries need to be used for maximum performance. If you don’t use your device often, be sure to complete a charge cycle at least once per month.
They even offer a couple of scropts to help you remember to fresh you battery's 'memory'! 
<Another Apple battery related page>
The newest batteries have less 'memory' problems than older NiCad batteries, but that doesn't mean they should/could be installed and forgotten. They will 'wear' out faster if not kept in good order. YMMV.
<>
YMMV.

ABD: I do not recall what exactly was transpiring when I had my issue, but the PMU sounds like a possible culprit. It has never reoccured. I use the laptop as (MY) computer, attached to a 19 inch lcd. She uses the IMAC. It gets to go traveling half a dozen times or so a year when "she" makes presentations and when we travel for fun. Probably has not discharged to 50 percent more than 3 or 4 times.
I was aware of the excercising procedure and it just makes sense. Now what does YMMV mean? Try as I may cannot come up with anything that makes sense.
Daryl
(http://docs.info.apple.com/article.html?[/url)