Is there any battery indication? Hollyland Tech November 30, 2020 02:49 Updated The battery voltage display will be on the OLED screen. When the Voltage is less than 6.8 V, it is suggested to exchange the battery to get the system to work normally. Related articles What are the differences between the STANDARD and ENHANCED version of MARS 300 PRO? How to power on the device ? How long will the battery last ？ How to install the transmitter and receiver to get the best performation ? Why there is no video when using SONY camera? What information Could I get from the OLED screen ? Comments 0 comments Article is closed for comments.