The smallest and lightest ThinkPad X41 Tablet notebook system battery provides up to 3.5 hours(1) battery life. Replace your original 4-cell system battery (select models) or carry an extra one to stay unplugged longer. It's design allows it to be in the system when the system is connected to the ThinkPad X4 Dock.
- 3.5 hour battery life
- Designed so that the ThinkPad X41 Tablet can fit in the ThinkPad X4 Dock with the battery in position
- Over-discharge protection
- The ThinkPad X41 Tablet achieved a Battery Rundown Time of at least the time shown during testing. Battery life (and recharge times) will vary based on many factors including screen brightness, applications, features, power management, battery condition and other customer preferences