Li-Ion technology Seven-cell, rechargeable system battery, 14.4 V dc, 5.2 Ah
5.6-6.4(Integ.)/4.0-4.3(Disc.) hour(1) average battery life Standard system battery specifications Over-discharge protection (1) These model numbers achieved Battery Rundown Time of at least the time shown during testing. A description of the testing is available at lenovo.com/pc/ww/thinkpad/batterylife. Battery life (and recharge times) will vary based on many factors including screen brightness, applications, features, power management, battery conditioning and other customer preferences
