. . "Therefore, even in a case where only the battery charger 900 is contained in the cradle 950, the structure is arranged so that the contact points 910 a, 910 b, and 910 c can be electrically connected with the contact terminals 958 am 958 b, and 958 c. [0071]FIG. 7 is a perspective view that shows the status where the ink jet printer 800 having the battery charge 900 mounted thereon is contained in" . .