Yep, don't leave batteries lying doing nothing for months at a time. Charge them periodically, and run them through a cycle or 2 to keep them in decent condition.
Also, when you first take off, just hover a few feet above the ground for 1...
Never ever start a flight with a battery partly charged that also have been laying around for a long time, always charge your batteries before you fly.
No... this wasn't a flyaway at all.
Instead it probably was a flight conducted with a battery that had been laying for a long time & self discharged.
The flight started with the battery at 52% (but that was totally wrong as the BMS in the...