Cylindrical battery housing case

A cylindrical battery housing case comprising:

• a plurality of cylindrical battery housing chambers, each of the cylindrical battery housing chambers being configured to house one cylindrical battery, wherein
• each of the cylindrical battery housing chambers comprises a side wall having a plurality of notches and a plurality of elongated resilient members provided in a cantilevered manner inside the notches, each of the elongated resilient members comprising a protrusion configured to hold a cylindrical portion of the cylindrical battery,
• the plurality of cylindrical battery housing chambers comprises a first cylindrical battery housing chamber and a second cylindrical battery housing chamber adjacent to the first cylindrical battery housing chamber,
• the plurality of elongated resilient members of the first cylindrical battery housing chamber comprises a first elongated resilient member and a second elongated resilient member arranged along a circumferential direction of the first cylindrical battery housing chamber,
• the plurality of notches in the side wall of the first cylindrical battery housing chamber includes a common notch, and the plurality of notches in the side wall of the second cylindrical battery housing chamber includes the common notch, and
• the plurality of elongated resilient members of the second cylindrical battery housing chamber comprises a third elongated resilient member located in the common notch and arranged, in a front view of the cylindrical battery housing case, at an intermediate position between the first elongated resilient member and the second elongated resilient member in the circumferential direction of the first cylindrical battery housing chamber.