Lenovo Thinkpad 72W Slim User Manual page 20

2. Plug the larger end of the AC power cord into any standard, 100-240 volt
3. Insert the smaller, yellow-tipped connector into the power connector of your
4
ThinkPad 72W Slim AC/DC Combo Adapter User's Guide
electrical outlet (see 2 in the illustration below). The LED on the power
adapter should illuminate.
ThinkPad computer (see 3 in the illustration below). Make sure that the
ThinkPad computer is charging by checking the power icon on the system tray
in the lower right-hand corner of the screen. The icon displays as a plug if the
computer is charging or as a battery if it is not charging.