Lenovo U330 Laptop User Guide - IdeaPad U330 - Page 34
Using battery and AC adapter, Checking Battery Status, Using the AC Adapter
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Chapter 2. Using Your Computer Using battery and AC adapter When you cannot use the AC adapter to power your computer, you may depend on battery power to keep your computer running. Note: The operating system may run slower when using the battery mode. Checking Battery Status You can determine the percentage of battery power remaining by using Windows Power options. As each computer user has different habits and needs, it is difficult to predict how long a battery charge will last. There are two main factors: The amount of energy stored in the battery when you begin to work. 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 battery pack or from AC power through the AC adapter. 25