Lenovo IdeaPad U400 - Manual (Page 16)

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Chapter 3. Learning the basics
Using AC adapter and battery - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
„ Checking battery status
You can determine the percentage of battery power remaining by checking the battery icon in
the notification area.
„ Charging the battery
If the battery power is low, you need to charge the battery.
You need to charge the battery in any of the following situations:
• When you purchase a new battery
• If the battery status indicator starts blinking
• If the battery has not been used for a long time
Note: 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 commence 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.
Notes:
•
To increase the life of the battery pack, the computer does not start recharging the battery
immediately after it drops from fully charged.
• Charge the battery at a temperature between 50 °F and 86 °F (10 °C-30 °C).
• Full charge or discharge is not required.