Comment DOWS: Depends On Workload, Stupid! (Score 1) 97
Most laptops will last about what the manufacturer advertises, while using it in the manner disclosed by the manufacturer. For example Apple quotes their battery time while watching video on medium brightness. If you do that, you'll be close to the times Apple says you will be able to reach. If you're running Java applications or gaming on high quality settings, don't complain that your battery life is less than quoted by the manufacturer!