I'm sure this will be here on the site already somewhere, but my searches didn't find it, so copying here. Much more detail on those battery error code lights than in the manual !
(Graphic courtesy of Drone DJ)
From a Drone savy member of the forum named GadgetGuy from an post long ago.......This just may be whats happening
""You have to be inside the unlock when you launch, because the area outside the unlock automatically becomes an NFZ. If you...
this has happen to me with an Autel evo 2 pro drone ,since most batteries are SMART batteries they have firmware in them and can go corrupt
**** happens
I have seen racing Drones flash like a meteor in midair from the pilot “pushing” long and hard on the throttle and you can intentionally do it by giving it full throttle and not letting it go…I know a DJI fpv will cook its battery in a very short...