PURPOSE: To enhance effectiveness in fabricating electric apparatus such as motored tool by connecting No.1 terminal to the uppermost battery elecgrode by means of side installation of a terminal table having a wired space for the uppermost charged battery and by connecting No.2 terminal to the next lower situated battery electrode by a lead threaded through the wiring space.

CONSTITUTION: A group of charged batteries 18 consist of eight charged batteries, among which five are arranged pentagonally in longitudinal attitude, two charged batteries are laid on their top, and uppermost charged battery is laid over either one of said two charged battery to form a crest form or a pyramid. The side plate 19a of terminal table 19 is put in contact with the side of the uppermost charged battery 18a, and its electrode fitting 26 is fixed by soldering to the connection part 34a of terminal plate 34. The bottom of the sensor element is soldered to the electrode fitting 27 at the next lower stage. In the same manner, this electrode fitting 27 is conneced to the connection part 35a of the terminal plate 35 by a lead 38 threaded through the wiring space 19e in a channel shaped plate 19d.