is described below the battery is now at least partly ejected by a spring element 5 fig8 shows a detailed view of the battery retainer 1 of fig7 being incorporated into an electric device d the latter only partially being shown the device d includes a housing h the battery retainer 1 includes a receiving chamber 3 which is directly incorporated into the housing h as a recess the receiving chamber 3 has a shape of a cylinder having a basically circular cross section and is delimited by a cylindrical outer wall 4 this shape corresponds to a coin battery 2 to be received in the receiving chamber 3 i e in the recess a spring element 5 is located at the bottom of the receiving chamber 3 for ejecting the battery 2 at least partly from the receiving chamber 3 when the pivotable retaining arm 5 is pivoted off for example as described above in fig9 when the retaining arm 5 is pivoted off by pressing the push part 10 a battery 2 received in the receiving chamber 3 is automatically ejected or is at its one end at least lifted to an extent that it can easily be removed e g by means of two fingers in detail the one end of the battery which end was previously underneath the retaining arm 5 is lifted and the other end partly remains underneath the static retaining element 16 and the battery.