comments:
Here's my two cents. For context, I teach this stuff at the college level. That battery is toast. Get a LiPo killer and discharge it (example link below). Outside on concrete (or somewhere else that's non-flammable) is best, but at least use a LiPo charging bag. Once it's dead flat, you can safely dispose of it in the trash. Note: some cities won't allow them to be disposed of in residential trash under any circumstances; YMMV. I agree with others about the motor. It may or may not be "OK". If you can afford it, replace it — buy some spares while you're at it; the Chinese stuff is getting harder and harder to source reliably. I don't know which FCU and firmware you are using, but if yours supports vibration logging, you could check how bad it is. It would be more helpful if you had a pre-crash baseline, but you can ask ChatGPT or on forums to find a rough vibration baseline for your size quad. The data logging can also tell you if one motor is drawing more current, which would indicate extra resistance. If replacing isn't an option, start with some very conservative flights after your repairs. Take off, do some controlability checks (check pitch, roll, yaw, and climb/descent responses) and then hover for a minute or two. If all seems good, land and check temps of the four motors. A real temp measurement with an IR thermometer would be great, but at a minimum, do a "hand check" to see if all four motors feel roughly the same temp. If all that passes, slowly increase your flight complexity and length until you're confident all is working. Honestly, the procedures above are practical to complete after ANY kind of crash. If it were me, those parts (minus the battery) would become "wall art" to remind you of the beginning of your flying career :) https://a.co/d/072BuhYX