You mean vampiric -- she aint---- ooops wait a minute ahahah -- are you theorizing or is that a real question -- my first take is that she shut it down like she did callisto's heart -- you stop the electrodes you stop the function of the heart -- kinda thing -- and Im gonna sound like a lightning lass enthusiast which i hope not - will comes with a thought like a command to a brain to a body -- to stop -- but that theory of draining is not far from possible unless lowkey is she still "vampiric" coz Id love it --- ahahaha
P.S. she was looking for a weak point like a shut down switch -- as per narration