How to power on the device ? How long will the battery last ? Hollyland Tech November 28, 2020 06:40 Updated How to power on the device ? system supports L-seires batteries and 5~12V power banks or regular adaptor charging via the Type- C interface. How long will the battery last ? NP-F 970 lasts for about 4~6 hours NP-F 750, about 4 hours NP-F 550, about 2~3 hours Related articles Does 300 PRO support charging via different solutions at the same time? How to set them up when multiple sets of MARS 300 PRO are used at the same location ? Why there is no video display when using the system with a switcher ? User Manual How long will the built-in battery last? Comments 0 comments Article is closed for comments.