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https://purengom.com/2009/10/25/windows-7-%eb%b0%b0%ed%84%b0%eb%a6%ac-%ed%85%8c%ec%8a%a4%ed%8a%b8-%ec%a4%91%ea%b0%84-%ea%b2%b0%ea%b3%bc/
Windows 7 배터리 테스트 결과