Letting aibo charge the built-in battery on its own (Self-charging)
When aibo's built-in battery is running out power, the status LED at the back of the neck flashes slowly in green and aibo walks around looking for the charging station. When aibo finds the charging station, it lies down on the charging station.
To let aibo find the charging station with no problems for self-charging, place the charging station in an appropriate place. See Where to place the charging station for more information.