Description: Apple laptops ship with well-engineered battery systems that are advertised as providing some of the longest runtimes when compared with portable computers with similar specifications. Despite this, while some people are able to get times similar to those advertised by Apple, others are frustrated with their experiences of these runtimes being truncated by at least an hour from the advertised times, even on brand-new machines. This is mainly due to a difference in Apple's testing conditions versus the way an average user will run the laptop. It's best to consider the advertised battery times as being at the very high end of what's achievable, since in Apple's tests the environmental and computing conditions are optimal, and the batteries are fresh.
