Charging station for an electric or hybrid vehicle, wherein the charging station comprises at least one battery bank, a charging/discharging electronics system, at least one connection to a vehicle charging port, and an air conditioning device for heating and cooling at least the battery bank, wherein the air conditioning device includes a refrigerant circuit for conducting a refrigerant and a coolant circuit for conducting a coolant, wherein the refrigerant circuit includes a compressor operated by a motor for compressing the refrigerant, a condenser for transferring the refrigerant from a gaseous state into a liquid state, an expansion valve for expanding and decompressing the refrigerant and an evaporator for transferring the refrigerant from a liquid state into a gaseous state, wherein the coolant circuit includes a cold reservoir connected to a heat reservoir via an overflow line, wherein the heat reservoir and the cold reservoir are connectable via respective regulatable valves (142, 148) to at least one first heat exchanger arranged in a space surrounding the battery bank, wherein the condenser and the heat reservoir belong to a first sub-circuit of the coolant circuit, and wherein the evaporator and the cold reservoir belong to a second sub-circuit of the coolant circuit, wherein a control unit of the air conditioning device is configured for activating the regulatable valves (142, 148) and at least one pump (155, 162) arranged in the coolant circuit in such a way that a coolant located in the coolant circuit is simultaneously conveyed out of the cold reservoir and the heat reservoir to the at least one first heat exchanger, and is conveyed from the first heat exchanger back into the cold reservoir, in order to establish the thermal short circuit of the coolant circuit between the heat reservoir and the cold reservoir, and operating the motor of the compressor for as long as it takes for the waste heat of the motor connected to the space surrounding the battery bank, the space being filled with a fluidic and/or convection-based connection, to effectuate a temperature increase in the space to or above a predefined value. wherein the charging station comprises at least one battery bank, a charging/discharging electronics system, at least one connection to a vehicle charging port, and an air conditioning device for heating and cooling at least the battery bank, wherein the air conditioning device includes a refrigerant circuit for conducting a refrigerant and a coolant circuit for conducting a coolant, wherein the refrigerant circuit includes a compressor operated by a motor for compressing the refrigerant, a condenser for transferring the refrigerant from a gaseous state into a liquid state, an expansion valve for expanding and decompressing the refrigerant and an evaporator for transferring the refrigerant from a liquid state into a gaseous state, wherein the coolant circuit includes a cold reservoir connected to a heat reservoir via an overflow line, wherein the heat reservoir and the cold reservoir are connectable via respective regulatable valves (142, 148) to at least one first heat exchanger arranged in a space surrounding the battery bank, wherein the condenser and the heat reservoir belong to a first sub-circuit of the coolant circuit, and wherein the evaporator and the cold reservoir belong to a second sub-circuit of the coolant circuit, wherein a control unit of the air conditioning device is configured for activating the regulatable valves (142, 148) and at least one pump (155, 162) arranged in the coolant circuit in such a way that a coolant located in the coolant circuit is simultaneously conveyed out of the cold reservoir and the heat reservoir to the at least one first heat exchanger, and is conveyed from the first heat exchanger back into the cold reservoir, in order to establish the thermal short circuit of the coolant circuit between the heat reservoir and the cold reservoir, and operating the motor of the compressor for as long as it takes for the waste heat of the motor connected to the space surrounding the battery bank, the space being filled with a fluidic and/or convection-based connection, to effectuate a temperature increase in the space to or above a predefined value.