METHOD AND SYSTEM FOR HEAT PRESERVATION OF BATTERY OF VEHICLE, STORAGE MEDIUM AND PROCESSOR

A method and a system for heat preservation of a battery of a vehicle, and a storage medium is provided. The method includes: detecting, in response to completing the charging of the vehicle, whether a current temperature of the battery of the vehicle is lower than a preset temperature threshold value of the battery, and the temperature threshold value is configured as a lowest temperature value at which the battery is able to maintain normal performance; and controlling, when a detection result is yes, the vehicle to obtain an electrical energy from an external charging device to heat the battery, such that the battery is heated above the temperature threshold value to complete heat preservation of the battery. The method provided by the present application can heat the battery without consuming the power of the battery used for endurance mileage of the vehicle when the battery is charged.