A case for a mobile electronic device comprising a housing, the housing having a rear face (4) adjacent to which a rechargeable battery (3) is housed. Upstanding side walls (5) extend away from all sides of the rear face to define a cavity for the phone. An opening in the front face of the housing surrounds the side walls. The battery is electronically coupled to an inductive charging coil (12) which is accessible for charging an inductively chargeable device at the rear face on the side opposite to the cavity.