The meaning of the ThinkPad battery indicator status is as follows:

　1. Green: The battery has been charged more than 20%.

2. Orange: The battery has been charged 5% to 20%.

3. Flashing orange quickly: The battery charge is less than 5%.

NOTE: The battery may be charging.

4. Flashing orange slowly: The battery is charging. When the battery reaches 20%, the flashing light turns green.

5. Color flashes slowly: The battery has been charged 20% to 80% and is still charging. When the battery power reaches 80%, the flashing stops, but the battery continues to charge until it is fully charged.

Note: If the computer is using the battery as a power source, the battery status indicator light will not light up when the computer is turned off or in sleep (standby) mode or hibernation mode.

ThinkPad, also known as "ThinkPad" in Chinese, was a portable computer brand under the IBM PC Division before 2005. It enjoys a high reputation in the industry for its ruggedness and reliability. After Lenovo acquired the IBM PC Division, the ThinkPad trademark was owned by Lenovo. Since its inception, ThinkPad has maintained a classic black appearance and has its own unique insights into technology, such as: TrackPoint (pointing stick, commonly known as the little red dot), ThinkLight keyboard light, full-size keyboard and APS (Active Protection System, active protection system) ).

Thinkpad is the most popular portable computer among developers of the open source operating system OpenBSD, and the ThinkPad X40 is one of the most supported portable computer models.