With each new major Mac OS X revision, we eagerly look forward to reading John Siracusa’s in-depth discussion in Ars Technica, and this time is no exception. The description is full, the opinions are spot-on, and the technical information is fascinating. follow link
View Extra Battery Details in Snow Leopard
In Snow Leopard, Option-click the Battery icon in the menu bar to show the battery's current condition - Normal is good. Other messages might read Replace Soon, Replace Now, Check Battery, or Service Battery. Choosing the message opens a Mac Help document with more information.
Siracusa’s Lion Assessment — Brilliant, As Usual