This is by design. Starting with I believe the 550/667 models (maybe one rev later; the 400/500 don't do this) the power management is altered somewhat to help lengthen the life span of the battery. Your battery will drop to about 95% before it will begin charging again; this is to prevent extremely short battery charge cycles to gain one or two percent, which aren't good for the battery. Steve Talkowski <stevetalkowski at mac.com> writes: > Odd thing, after my battery reaches 100% full charge, it then appears > to seep juice (the value drops a few percentage points) but the plug > icon still indicates it's connected to the power supply. I've never > had a battery drain while plugged in before - anyone else experience > this? Kynan Shook kshook at mac.com http://homepage.mac.com/kshook/index.html