Lenovo N500 User Guide - Page 41

Lenovo 3000 N500 UG V1.0_en.book Page 33 Monday, September 1, 2008 9:44 AM Chapter 2. Using Your Computer The amount of battery power you use determines how long you can use your computer between charges. As computer users' habits and needs will vary, it is difficult to predict how long a battery charge will last. There are two main factors: ƒ The amount of energy stored in the battery from the time you start using your computer. ƒ The way you use your computer: for example, how often you access the hard disk drive and how bright you make the computer display. „ Using the AC Adapter The power to run your computer can come either from the lithium-ion (Liion) battery pack provided with it, or from AC power through the AC adapter. While you use AC power, the battery charges automatically. The AC adapter that comes with your computer has two basic components: 1 The transformer pack that converts AC power for use with the computer. 2 The power cord that plugs into the AC outlet and the transformer pack. Attention: Using an improper power cord could cause severe damage to your computer. To use the AC adapter, do the following. Be sure to take these steps in the order in which they are given here. 1 Connect the AC adapter to the power jack of the computer. 33