The average service life of the power battery is 5-8 years, and the performance decays as the number of charging increases. When the battery capacity decays below 80% of the rated capacity, the power battery is no longer suitable for electric vehicles. However, the decommissioned batteries can be further used in many fields such as energy storage, distributed photovoltaic power generation, household electricity, low-speed electric vehicles, etc. after testing, maintenance, and reorganization.
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