Do electric vehicle batteries need to be fully charged if they are not used for a long time?

The maintenance of electric vehicle batteries is crucial for extending their service life. Long term non charging can lead to the inability of internal substances in the battery to activate, thereby affecting the reaction effect during charging and ultimately shortening the battery's lifespan.
In addition, when the battery is not charged for a long time, the lead sulfate generated may penetrate the battery diaphragm, causing a short circuit and ultimately damaging the battery. Therefore, the parking time of electric vehicles should not exceed one week, during which attention should be paid to charging and discharging the battery to maintain its performance.
If an electric vehicle has been parked for a long time, even more than a year, it must be fully charged before use. After being fully charged, it needs to be left to stand for about ten minutes. During the transportation process, behaviors such as throwing, rolling, and heavy pressure should be strictly prohibited. At the same time, dust and dirt on the battery cover should be regularly removed to keep the battery dry and clean to prevent self discharge.
Special reminder: The battery should always maintain sufficient power to avoid long-term depletion. It is recommended to charge the battery every night. When not in use for a long time, it should be fully charged and placed in a cool and dry place, and regularly charged (usually recommended to do it every 10 days or so). This maintenance measure will effectively extend the service life of the battery.