Getting Comfortable Checking the Status of the OmniBook To understand power and battery lights Power Lights The green power light indicates the power state. Power Light (on hinge) Meaning Steady green light Battery charging. Blinking light Not charging (if ac power on). –or– OmniBook in Suspend mode (if ac power off). No light Not charging (ac power off). Battery Lights The battery itself has four square lights that indicate charge status when you press the square black button on the battery. Each light represents 25% charge. The green lights on the main battery or secondary battery indicate its charge level. 3-16