BATTERY

摘要

PURPOSE: To obtain batteries which can be connected in series and detachably at low resistance. CONSTITUTION: A male screw portion 13 (or a female screw portion) is formed in a positive terminal 11. A female screw portion 23 (or a male screw portion) to portion 23 (or a male screw portion) to be screwed into it is formed in a negative pole terminal 20. The male screw portion 13 and the female screw portion 23 are so positioned that batteries 1 will be put one on the other in vertical direction or juxtaposed on the same plane, in mutual screwing. The negative pole terminal 20 having the female screw portion 23 (or the male screw portion) is preferably formed as a recess not to protrude from outer surface of the battery 1.