The daily maintenance and maintenance of electric vehicle batteries mainly pay attention to the following points: (1) The battery is at the best working environment temperature of 15℃-40℃. Outside this temperature range, the normal operation of the battery will be affected. (2) It is strictly forbidden to expose electric vehicles to the hot sun for a long time in summer. (3) When the ambient temperature is higher than 40°C or lower than -10°C, the battery life will be shortened. Therefore, when the temperature is high in summer, the battery should avoid direct sunlight. At low temperatures in winter, the battery should be stored indoors and charged indoors. After the battery is fully charged, it should be charged for another 2 hours. (4) The battery should be charged in a ventilated environment. Avoid getting close to fire sources. It is best to remove the battery pack when charging to facilitate heat dissipation. (5) When the red undervoltage indicator on the instrument panel is illuminated, it indicates that the battery has entered the hungry zone and should be charged in time. Timely charging will greatly extend battery life. Fully charge the battery once a day, and the charging time should be 8-12 hours each time. Keeping the battery in a state of full power at any time is of great benefit to its life. If the battery is not charged in time after riding, it will greatly affect the service life of the battery. Severe conditions will cause the battery to be scrapped. (6) Do not short-circuit the positive and negative ends of the battery to avoid danger. (7) Only use the special charger provided by the manufacturer for charging. (8) The storage battery is a dedicated battery. Please do not use it as a power source other than electric bicycles to avoid damage to the battery. (9) Organic solvents cannot be used to clean the battery shell. In the event of an accidental fire, carbon dioxide should not be used to extinguish the fire. Instead, fire extinguishers such as carbon tetrachloride should be used. (10) If there is a failure in the accumulator unit, please send it to the manufacturer’s authorized office or relevant agency for proper handling. Please do not throw it away randomly to avoid environmental pollution. (11) When the battery is not in use for a long time, it should be fully charged and stored, and it should be recharged for no less than 24 hours every three months. (12) When the ambient temperature is -10℃, the battery's power can only be released 60%. Therefore, the mileage of a full charge in winter is much less than that of a full charge in summer. In winter, it is better to use a pedal assisted driving when electric driving. (13) The battery is a consumable, and the battery life is limited. The end-of-life period of the battery should be evaluated when the mileage of a full charge can only reach half of the national regulations (25Km). That is to say, the battery life ends when the mileage is less than 13km after a full charge, and the battery should be replaced with a new one. (14) When the electric bicycle is started, it should accelerate slowly; when driving on a steep road and headwind, it is best to pedal to assist to avoid high-current discharge of the battery, so as to extend the life of the battery and the motor. And to avoid burning electrical components.