Up to 6 hr 15 min MM12 battery life with 4 Cell 40Whr battery †

† Tested by ODM and Dell lab in 2014, and results released on April 2014. Tested system equipped with Intel Celeron N2830 prcoessor with Intel HD graphics, 500GB 5400 HDD. Based on testing using the Mobile Mark 2012 battery life benchmark test. For more information about this benchmark test, visit http://www.bapco.com. Test results should be used only to compare one product with another and are not a guarantee you will experience the same battery life. Battery life may be significantly less than the test results and varies depending on your product’s configuration, software, usage, operating conditions, power management settings and other factors. Maximum battery life will decrease with time and use.