Lenovo Li-Polymer 3 cell battery for the X300 series
Stay unplugged longer with the help of a spare ThinkPad X300 Series 3 Cell LiPolymer battery. Replace your original 3-cell system battery (select models) or carry an extra to stay unplugged longer. Battery life (and recharge times) varies based on many factors including screen brightness, applications, features, power management, battery conditioning, and other customer preferences. Compatible with the new ThinkPad X300.