How bad is the battery life?
When Microsoft said the Surface Pro was a PC, it wasn't kidding. The company's Surface social marketing team recently told several customers via Twitter that Surface Pro will have about half the battery life of the Surface RT. That would put Microsoft's battery life claim for Surface Pro around 4.5 to 5 hours. PCWorld's Loyd Case recently noted that battery life for Ultrabooks averages six hours or more, making the Pro's promised battery life fairly disappointing.
Even more concerning, third-party independent testing often finds real-world battery life to be worse than manufacturer claims. Bottom line: you may want to hold off on buying a Surface Pro until you see some reviews that include battery life tests.
If you need a tablet or new laptop right now and can't wait for Surface Pro to launch, check out PCWorld's top 100 products of 2012 to see if other critically acclaimed Windows-powered devices will work for you.
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