What is the battery life of the “Mid-2009” and “NVIDIA/Late 2008” MacBook Air in real-world usage tests?
Please note that the “NVIDIA/Late 2008” MacBook Air was replaced by the “Mid-2009” MacBook Air on June 8, 2009. For the original MacBook Air, Apple stated that the notebook could provide five hours of battery life with wireless activated. Critics flambed this claim, finding battery life to be significantly inferior in real-world use. For the NVIDIA/Late 2008 MacBook Air — it is interesting to note that despite the fact that the energy consumption of these models is less than the original — Apple only estimated 4.5 hours of battery life in a “wireless productivity” test, perhaps a quiet admission that the number reported for the original system was a bit more optimistic than it should have been. Nevertheless, those who follow the computer industry are used to practically irrational optimism from companies reporting battery life, and as a result, only real-world usage tests can provide a realistic estimate. In an otherwise comprehensive review of the “NVIDIA/Late 2008” MacBook Air, Mac
