How to protect the battery of new energy vehicles? In order to protect the battery of new energy vehicles, the following measures can be taken:
Charging strategy optimization
Avoid long-term full charging or over-discharging, and control the daily charging range between 20%-80%. It is recommended to fully calibrate the SOC only once a week (lithium iron phosphate batteries can be relaxed to once a month), and temporarily fill it up before long-distance travel.
Temperature management mechanism
The optimal operating temperature of lithium batteries is between 15-35℃. In summer, underground garages are preferred for charging to avoid direct sunlight; in winter, it is recommended to turn on battery preheating first (most models support scheduled charging and heating).
Charging method selection
Daily use 7kw AC slow charging first, and its 0.2C charging rate is most friendly to the battery. It is recommended to control DC fast charging within 30% of the total charging times, and the frequency of overcharging above 150kw should be reduced.
Discharge depth control
Follow the principle of “shallow charging and shallow discharge”, and the single discharge depth should not exceed 60%. When the power is less than 30%, it should be replenished in time to avoid triggering the battery protection mechanism.
Long-term parking maintenance
When the vehicle is idle for more than 15 days, the power should be kept in the range of 50%-60%. A charge and discharge cycle (charge to 60% and then discharge to 50%) is required once a month to prevent over-discharge caused by self-discharge of the battery.
Intelligent charging assistance
Make good use of the on-board scheduled charging function and charge during the off-peak period of the power grid load (usually 23:00-7:00), so as to enjoy preferential electricity prices and take advantage of natural heat dissipation conditions at night.
Through the above measures, the batteries of new energy vehicles can be effectively protected, their service life can be extended, and good performance can be maintained.
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