Patent ID: 8367237

Claim:
An electronic device comprising: a housing; a battery retainer arranged within the housing, the battery retainer defining a battery cavity and comprising a spring tab comprising a fixing end fixed to the battery retainer and a free end, which constitutes a cantilevered structure; a battery received in the battery cavity and defining a recessed portion and a protrusion protruding from a bottom of the recessed portion, wherein the recessed portion includes a plurality of sloped surfaces and vertical walls surrounding the protrusion, the plurality of sloped surfaces comprises a first sloped surface, a second sloped surface, a third sloped surface and a fourth sloped surface, the plurality of vertical walls comprise a first vertical wall, a second vertical wall, a third vertical wall and a fourth vertical wall, the first sloped surface slopes upward from a bottom of the first vertical wall toward a top of the second vertical wall, the second sloped surface slopes upward from a bottom of the second vertical wall toward a top of the third vertical wall, the third sloped surface slopes upward from a bottom of the third vertical wall toward a top of the fourth vertical wall and the fourth sloped surface slopes upward from a bottom of the fourth vertical wall toward a top of the first vertical wall, and the protrusion comprises a side wall A protruding from the third sloped surface; a movable member comprising a first end and a second end, wherein the movable member is pressed by the spring tab, the first end is rotatably connected to battery retainer and the second end engages one of the plurality of sloped surfaces when the battery is retained within the battery cavity, the second end also engages the side wall A to retain the battery within the battery cavity; and at least one resilient member secured to the battery retainer to apply a force to eject the battery; wherein, to remove the battery from the electronic device, the battery is further pushed into the battery cavity, one of the plurality of sloped surfaces engages the second end of the movable member to move the second end until the second end disengages from the side wall of the protrusion, which allows the battery to be ejected by the at least one resilient member.