What is the maximum operating time of Osmo Action 3?

The maximum operating time of Osmo Action 3 is 160 minutes in room-temperature environments, and up to 150 minutes when shooting in environments with temperatures as low as -20° C (-4° F).*

*Please note that this was tested in a laboratory environment while recording 1080p/30fps video with EIS (Electronic Image Stabilisation) disabled and the screens off, and should be used for reference only.