Dell Studio 1457 (Late 2009) - Manual (Page 23)

21
Using Your Studio Laptop
7 Battery status light — Turns on steadily or blinks to indicate the battery charge status.
The light indicates the following states when the computer is powered using either the AC
adapter or the battery.
Indicator light status Computer state(s) Battery charge level
AC adapter solid white on/off/hibernate/
standby
charging
10%–90%
off on/off/hibernate/
standby
>90%
solid amber on/off/hibernate/
standby
<10%
Battery solid amber on/standby <10%
off on/off/hibernate/
standby
>10%
NOTE: The battery is charging when the computer is powered using the AC adapter.