battery in the locked condition while allowing for a degree of manufacturing tolerance a third embodiment of the invention is described with reference to fig7 of the drawings those elements also found in the first and second embodiments are referred to by like reference numerals the radio telephone apparatus of fig7 maintains reliable electrical contact between the fixed 10 and sprung 30 contacts of the battery charger and handset 1 respectively in a different manner to that of the previous embodiments instead of using the latching arrangement described previously the handset 1 is u2018 locked u2019 or located within the compartment 8 of the cradle member 2 by abutment of a slot 31 in the handset 1 and a fixed peg 32 protruding from the wall of the compartment 8 the peg 32 is angled out from the wall of the compartment 8 against the direction of withdrawal of the handset 1 the slot 31 has an angled taper 33 on its upper edge to prevent it catching the peg 32 as the handset 1 is placed in the cradle 2 and a lip 34 along its lower edge for abutment with the peg to lock the handset 1 with contact maintained between the fixed and sprung contacts 10 30 to lock the handset 1 in position it is placed into the compartment 8 and pressed down against the bias of the sprung contact 30 at the same time the handset 1 is pressed towards the back wall of the cradle member 2 as the handset 1 is released the sprung contact 30 displaces the handset 1 upwards and the lip 34 on the slot 31 and the peg 32 u2018 catch u2019 holding the handset 1 against further upward displacement to remove the handset 1 it must be pressed.