Battery pack

An imaging apparatus comprising:

• a battery housing;
• and
• a battery comprising:
• a height;
• a width;
• a length;
• top and bottom surfaces substantially perpendicular to a height direction of the battery;
• first and second side surfaces disposed between said top and bottom surfaces;
• front and rear end surfaces disposed between said top and bottom surfaces and also disposed between said first and second side surfaces;
• a terminal area provided at a junction of the front end surface and the bottom surface and having a first surface raised from the front end surface in a length direction of the battery and a second surface offset from the bottom surface in a direction of the top surface in the height direction, the terminal area being positioned at a position biased to one side with respect to center lines in a width direction and a height direction of the battery;
• a first concave portion stretching between the first side surface and the bottom surface and formed on the front end surface;
• and
• a second concave portion stretching between the second side surface and the bottom surface and formed on the front end surface,
• wherein
• the terminal area has a plurality of inside slits and a plurality of outside slits located at opposite ends of the inside slits in the width direction, the plurality of inside slits comprising a negative terminal, a control terminal, and a positive terminal in this order from the center line in the width direction, the outside slits being formed wider in the width direction and larger in the height direction than the inside slits, the outside slits being configured to engage with guide protrusions at a bottom face of a battery housing of an apparatus when the battery is housed in the battery housing;
• the terminal area is separated from the first and second concave portions by the front end surface in the width direction;
• a depth of the first concave portion in the length direction closer to the terminal area in the width direction is shallower than a depth of the second concave portion in the length direction further from the terminal area in the width direction;
• a depth of the second concave portion in the length direction is larger than a distance in the length direction that the first surface of the terminal area is raised from the front end surface;
• the height of the battery is smaller than the width and the length of the battery;
• and
• the width of the battery is smaller the length of the battery.