Patent ID: 7709136

Claim:
A battery pack assembly configured to be removably insertable into a receptacle of an electronic device, comprising: a battery housing having an open end and a generally closed opposite end having an opening therethrough, the battery housing being configured to receive a battery having a pair of opposite terminals therein through the open end; a first contact member mounted within the housing and configured to electrically contact one terminal of the battery and provide electrical contact with the one terminal of the battery from outside the battery housing; a flexible second contact member comprising a spring member mounted within the housing and being exposed through the opening, the second contact member being configured to electrically contact the opposite terminal of the battery and provide electrical contact with the opposite terminal of the battery from outside the battery housing, the second contact member further being configured to bias the one terminal of the battery into electrical contact with the first contact member; and a cap member configured to cover the open end of the battery housing.