Optoma BE Free5 BE Free5 User Manual - Page 6
Battery Low Alarm and Battery Status
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Open the top cover, check left LED. If the left LED indicator is white, the battery is more than 25% capacity, If the left LED indicator is orange, the battery is less than 25% capacity. It is strongly recommended that you charge the charging case immediately when the LED indicator turns orange. Please note, low battery of the charging case might cause abnormal functionality such as auto on and auto off. Battery Low Alarm and Battery Status When the battery level of the earphones are low, you will hear the voice prompt "Battery Low" from your BE Free5 every 2 minutes. The estimated battery reserve remaining time is less than 15 minutes. Users with iOS devices and some Android models will be able to view the battery status on their device's display. 5