Abstract: A charging apparatus and a quality judging apparatus for a packed battery should be configured to prevent reduction of charging/discharging performance at the time of charging the packed battery, to improve reliability of the packed battery, and to secure safety of the packed battery.

Abstract: The present invention relates to a suspension system of a bobbin hanger rotatably dangling a bobbin around which sliver or rovings are wound up on spinning machines, in the construction of which, for the purpose of deterring the intrusion of dust into a bearing section and urging the latter to smoothly rotate, a cap covers the bearing section with a slide face which is in consonace with a swinging spherical face of the bearing section, which holds a ball race molded of resinous material on a terminal head formed with a spherical surface, such being overlaid by an outer race with a retainer disposed between, and this outer race secures a housing.