Lenovo B4400 Notebook - Manual (Page 34)

Lenovo B4400 Hardware Maintenance Manual
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Table 2. Status indicators
Indicator Meaning
Green 80% - 100% charged, or 20% - 100% discharged.
Slow blinking green 20% - 80% charged.
Slow blinking amber 5% - 20% charged.
Amber
5% - 20% discharged.
Fast blinking amber No more than 5% charged or discharged.