Battery pack—cordless power device interface system

A cordless power tool and battery pack combination, comprising:

• a. each of the power tool and battery pack having at least one retention member that pivotally engages the retention member of the other of the power tool and battery pack;
• and
• b. a latch system including the power tool having a ball extending from a bottom of a foot of the power tool and the battery pack having a latch that engages the ball, the latch including inner and outer sleeves that extend laterally across at least a portion of the battery pack, each sleeve including a recess therein, a portion of the inner sleeve slidably received in a portion of the outer sleeve, the latch including at least one spring for each sleeve, the springs urging the sleeves together so that the ball is captured between the recesses of the sleeves.

A battery pack for a power tool having a retention member and a ball, comprising:

• a. at least one retention member that pivotally engages the retention member of the power tool;
• and
• b. a latch for capturing the ball of the power tool between movable portions of the latch.