A combination battery and antenna includes a battery having a positive contact and a negative contact, at least one of the positive contact and the negative contact comprising an antenna coupled to a matching circuit and to a radio frequency choke, whereby direct current (DC) is supplied to a battery circuit and a radio frequency (RF) signal is supplied to an RF circuit, and at least one secondary radiator parasitically coupled to the at least one of the positive contact and the negative contact of the battery.