When was the last time you bought a laptop  that lasted as long as advertised, especially if its a PC? Probably not any time recently. Problem is, manufacturers continue to insist on using video playback to measure battery life. That is, frankly, nonsensical; video playback is literally one of the most efficient things a modern processor can do, and using it to measure battery life creates wildly unrealistic expectations for the average consumer. In my experience, modern laptops only last 50 to 65 percent of their claimed battery life. For example: I recently reviewed the new Surface Pro, which actually…

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