Definitely looks worthy for modeling at school without going directly to a desktop.
"With the display brightness turned to down to 70%, Wi-Fi active and refreshing a webpage every 60 seconds, the ThinkPad W520 lasted six hours and 50 minutes. Since this is both better than expected and is able to deliver over five hours even with the Intel i7 quad-core processor and NVIDIA Quadro 2000M graphics, we are satisfied at that amount."
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