The 45W AC Slim Tip Adapter for ThinkPad - US/Canada/Mexico from Lenovo is a spare AC adapter that provides power to the ThinkPad whenever and wherever needed. A perfect companion for office, travel, and home usage, this adapter helps you save on power consumption costs, space, and equipment.
Identical to the adapter bundled in 45W ThinkPad systems
26% smaller than the 65W ThinkPad AC adapter
Energy efficient with Energy Star V (ES 2.0)