In the scene where Karen tells Chris(Mike) that Chucky came alive in her hands she says to him,"Don't you see he's been moving and talking for DAYS without any batteries in him". Mike doesn't believe her so she tries to go and find Chucky. She ends up finding the peddler who she bought Chucky from and says to him "Do you remember me,I bought a doll from you in back of Carsons dept. store YESTERDAY". So ok i thought he was moving for days but appreantly it was only 1 day.