Hardware site AnandTech has posted an extensive review of the fifth generation AirPort Extreme base station and the fourth generation Time Capsule, and while you may not want to read the entire 9-page review, it's worth popping to the end, where author Brian Klug explains how an internal hardware change (from Marvell to Broadcom) gives these new models improved throughput and range. 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.
New AirPort Extreme and Time Capsule Feature Improved Throughput
Check out the Take Control ebooks that expand on the topic in this article: