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? Why there is no video display when using the system with a switcher ? How to set them up when multiple sets of MARS 300 PRO are used at the same location ? How long will the built-in battery last? User Manual Comments 0 comments Article is closed for comments.