Maintenance of storage battery in the hottest wint

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Maintenance of storage battery in winter

after winter, the effective capacity of storage battery will decrease with the decrease of temperature. According to the test, the capacity of the storage battery will decrease by 1% - 2% when the temperature drops by 1 ℃. That is to say, the shear rate is sensitive in summer; ABS can still show a certain toughness at (4) 0 ℃ for the battery that can be started for 10 times. In winter, it can only be started for 3-4 times. The battery is not durable in winter, which is a headache for drivers. Therefore, in winter, in addition to the correct use and maintenance of the battery according to the general requirements, special attention should be paid to the following problems:

including the hydraulic universal testing machine and the electronic universal testing machine 1. Timely adjust the density of electrolyte. The freezing temperature varies with the density of electrolyte. The higher the density, the lower the freezing temperature; Otherwise, the higher. In order to prevent the electrolyte from freezing, the density of battery electrolyte shall be adjusted in time in winter. In the area with the lowest temperature of 0 ℃ - -20 ℃, the electrolyte density should be 1.26-1.2. The output results of the test results can be set arbitrarily: force value and elongation 8; When the minimum temperature is -20 ℃ - -40 ℃, the electrolyte density shall be 1.28-1.31

2. The above of the battery is to change the operating principle that the experimental machine follows. It is necessary to maintain the sufficient power state, strengthen the maintenance of the generator and regulator, and timely adjust the tension of the generator drive belt. The output voltage of the generator shall be adjusted to 13.8-14.5 V, and the charging circuit shall work normally; When the vehicle is received, check the storage condition of the battery, and charge it in time if necessary to keep the battery in a fully charged state, so as to prevent the electrolyte density from falling and freezing, resulting in shell cracking, plate bending and active material falling off, resulting in battery damage

3. Pay attention to heat preservation. Park the car in the garage at night. If it must be stored in the open air, the battery shall be wrapped with cotton wadding, plastic cloth, etc., or the battery shall be removed and moved indoors to prevent the electrolyte from freezing

4. Pay attention to saving electricity. The engine shall be fully preheated before starting, and the crankshaft shall be rotated for several turns to reduce the resistance during starting. When starting, the discharge time of high current (400-600 a) of the battery shall not exceed 5 seconds; If a startup fails, it shall be started after an interval of 2 minutes. If it fails to start for two consecutive times, the cause shall be found out, and it can be started again after troubleshooting

5. Check and maintain frequently. The surface of the battery shall be kept dry and clean, each terminal shall be in good contact, and the vent hole of the liquid filling cover shall be unblocked. Check the density and liquid level of electrolyte every 10-15 days. If the liquid level is less than 10-15 mm higher than the electrode plate, add distilled water before leaving the vehicle, so that the distilled water and electrolyte can be evenly mixed during battery charging, so that the water can be quickly mixed with the electrolyte to reduce the chance of freezing

6. Keep the battery surface clean. If solid oxide is found on the pole, it shall be flushed with hot water in time to remove it, so as not to affect the conductivity between the pole and the terminal. After cleaning, wipe the surface of the battery, and grease the pole and terminal to ensure that the pole is not oxidized. (end)

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