Managing Battery Power Monitoring Battery Power Charging time Charging the battery takes about 1.5 hours. Battery life When the computer is in use, typical battery life can last up to 2 to 3 hours, depending on your level of use and your power management settings (see page 1-14). Optimum Charging To get the longest battery operating time, continue charging until the OmniBook battery is fully charged. Because of rounding, a battery indicator can show a full battery before it’s fully charged. The status panel battery indicator (up or down triangle) stops blinking only when the battery is actually full. You can continue working while the battery is charging. 3-6