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While desktop computers come with some energy management features — the ability to suspend or sleep the computer, or the “hibernate” option — these features are far more necessary on a laptop. Primarily, energy management on the laptop is concerned with controlling the power drain on the battery. Ensure that your future laptop has the ability to merely sip power when necessary.

When power is really important to you, consider getting one of the powermiser microprocessors as opposed to the high-speed, top-of-the-line models. This does save a tad on battery life, but keep in mind that a high-end microprocessor works better for extending the laptop’s lifespan.