Patent ID: 7285008

Claim:
An upright battery seat to be connected to a button battery, the battery seat comprising: a base having a circumferential wall extending substantially vertically and a longitudinal placement surface to form a placement slot with one opened side to prevent the battery placed in the placement slot from escaping from the circumferential wall, wherein a top of the circumferential wall is formed with an opening into which a finger may be inserted, at least one first engagement portion and at least one second engagement portion, the at least one first engagement portion is close to the opening and engages with one side edge of the battery, and the at least one second engagement portion engages with the other side edge of the battery; and at least one positive terminal and at least one negative terminal each having an elastic arm, a positioning portion and a pin portion, wherein: the elastic arm is located in the placement slot and is electrically connected to the battery; the positioning portion is positioned with the base and the pin portion extends out of the base; the at least one first engagement portion of the base has an engaging surface substantially perpendicular to an inner surface of the circumferential wall; the elastic arm of the at least one positive terminal projects over the inner surface of the circumferential wall and elastically presses the battery upward to enable the battery to press against the circumferential wall near the opening and enable one side of the battery to engage with the engaging surface of the at least one first engagement portion; and when the battery is pressed down, the side edge of the battery can escape from the engaging surface of the at least one first engagement portion without locking.