Battery life

For percentage of remaining battery power, see the Power Manager Battery Gauge in the task bar.

The Power Manager also displays a green, yellow and red indication. A battery under warranty with a red indication is eligible for a warranty replacement.

Operating environment

This section provides information about your computer operating environment.

Environment:

Maximum altitude without pressurization: 3048 m (10,000 ft)

Temperature

At altitudes up to 2438 m (8000 ft)

Operating: 5.0°C to 35.0°C (41°F to 95°F)

Strorage: 5.0°C to 43.0°C (41°F to 109°F)

At altitudes above 2438 m (8000 ft)

Maximum temperature when operating under the unpressurized condition: 31.3°C (88°F)

Note: When you charge the battery pack, its temperature must be at least 10°C (50°F).

Relative humidity:

Operating: 8% to 80%

Storage: 5% to 95%

If possible, place your computer in a well-ventilated and dry area without direct exposure to sunshine.

Keep electrical appliances such as an electric fan, radio, high-powered speakers, air conditioner, and microwave oven away from your computer because the strong magnetic fields generated by these appliances can damage the monitor and data on the hard disk drive.

Do not place any beverages on top of or beside the computer or other attached devices. If liquid is spilled on or in the computer or an attached device, a short circuit or other damage might occur.

Do not eat or smoke over your keyboard. Particles that fall into your keyboard can cause damage.

ThinkVantage technologies and software

Lenovo preinstalls on your PC useful and helpful software applications to help you get started, to stay productive while on the move and to keep you and your computer working. Lenovo offers enhanced security, wireless computing, data-migration and other solutions for your computer.

Following sections provide information about ThinkVantage® technologies and other computing solutions, offered by Lenovo.

“Accessing applications in Windows 7” on page 20

“Access Connections” on page 21

“Active Protection System” on page 22

“Fingerprint Software” on page 22

“Lenovo Solutions Center” on page 22

Chapter 1. Product Overview 19

Page 37
Image 37
Lenovo E420, E520, 114155U manual Operating environment, ThinkVantage technologies and software