Abstract: A retaining device suitable for removably interconnecting a battery with the housing of an electrical apparatus. The retaining device has a bracket connected to the housing. The bracket is provided with two stanchions adapted to receive the battery in a battery retention channel therebetween. A small latching channel facing outside of the battery retention channel is formed on one of the stanchions. A clamp having a latch is pivotably connected to the bracket at a location near the other of the stanchions. The assembly is operated by inserting a battery in the battery retention channel, pivoting the clamp until the latch is near the latching channel, and temporarily elastically deflecting the clamp until the latch can be engaged with the latching channel.