This has happened to several people before. Some people tried to make the claim that if you hook a hitec connector backwards into futaba equipment that it will short out but this was proved by some of the members here not to be true. Some of the members have hooked in battery packs backwards and never had a fire. If you think about it, because Hitec is easy to reverse when mixing futaba and hitec equipment we would be have fires all the time, but I could be wrong.