Battery housing device

In a battery housing device including a case for receiving at least two batteries in a parallel condition, retaining means provided in the vicinity of one of inside surfaces of the case, and an electrode spring adapted to be retained by the retaining means, wherein positive and negative electrodes of the batteries are electrically connected to each other through the electrode spring. The electrode spring includes a spiral turn portion and an L-shaped portion continuing from a radially outermost turn of the spiral turn portion, and the retaining means comprises a retainer provided to stand from a bottom surface of the case in such a manner as to be opposed to the inside surface of the case with a predetermined gap defined between the retainer and the inside surface, a pocket provided at a lower portion of the inside surface and having a blind hole therein, and a rib provided on the inside surface at a position between the retainer and the pocket and having a recess at an upper end thereof, wherein when the electrode spring is retained to the case, a lower portion of the spring turn portion is inserted into the predetermined gap between the retainer and the inside surface, and a free end of the L-shaped portion is inserted into the blind hole of the pocket, and a connecting portion between the spiral turn portion and the L-shaped portion is inserted into the recess of the rib.