I have fully charged my batteries twice for my Mavic only to take off, going straight up, get a notice Maximum Rotar Speed then zero battery "landing." This has been a great bird and I have flown it a good bit. This happened before about six months ago but after recharging everything was fine. I don't know why but now I recharged it and it did the exact same thing. I almost started going horizontal which would have lost it on a mountainside had I done that.

Hi MountainMan57, thank you for reaching out, sorry to read about the issue. Could you please provide a screenshot of the error message for further checking? Please try to fully discharge the battery and charge to full again. To discharge the battery, you can power the drone on and wait for it to power off by itself. Please keep us updated on the issue.