An actively heated or cooled portable container has a body with a chamber that receives and holds a liquid, and one or more heating or cooling elements in thermal communication with at least a portion of the chamber. An outer surface of the body has one or more electrical contacts. A module is removably coupled to a portion of the body. The module has one or more electrical contacts on an outer surface of the module that contact the one or more electrical contacts on the outer surface of the body, control circuitry, and one or more power storage elements that provide power to the control circuitry and/or the one or more heating or cooling elements. The control circuitry wirelessly communicates with a mobile electronic device to wirelessly transmit information to the mobile electronic device associated with the operation of the module and/or wirelessly receive instructions from a user via the mobile electronic device.