battery status is spastic after update

Ran the battery update and have recalibrated battery, but the "time remaining" display is all over the place.
David Turley wrote on :

PB 17", 10.2.8

Ran the battery update and have recalibrated battery, but the "time remaining" display is all over the place. In the span of one minute it displayed:

2:29 3:15 2:49 3:22 2:59 2:40

What's up with that?