The new Range Rover Sport offers as an option a 220v socket in the rear. Where does the can get its electricity from the hybrid models (P440e, P460e, P510e, P550e)? Would it make sense if it operates on the large battery of the hybrid? I ask because I want to prepare my ordered P550e for overlanding and will use a compressor fridge that I want to connect to 220v. Alternatively, I could also use it via di e 12v sockets. There, however, I suspect that the starter battery must be delivered.. Does anyone use this configuration? Thank you for your help.