A technique is performed on a vehicle having a lithium battery and a temperature control apparatus. The technique involves receiving a temperature reading from temperature sensing circuitry. The technique further involves performing a comparison operation that compares the temperature reading from the temperature sensing circuitry to a target temperature range. The technique further involves, in response to a result of the comparison operation indicating that the temperature reading is outside the target temperature range, automatically providing electric power from an external battery charger to the temperature control apparatus of the vehicle. The external battery charger is distinct and separate from the vehicle. Additionally, the temperature control apparatus adjusts the temperature of the lithium battery of the vehicle in response to the electric power automatically provided from the external battery charger (e.g., heating or cooling the lithium battery to improve battery capacity and preserve battery life).