Electric vehicle lithium batteries are generally charged according to the specifications. If they are not available, it depends on the capacity of the lithium battery and the current of the charger. For example, for a 48V/20A lithium battery with a 5A charger, it takes more than 4 hours to charge, for a 10A charger, it takes more than 2 hours, and for a 20A charger, it takes one hour to charge.

　　Generally, newly purchased lithium-ion batteries for electric vehicles are new and have a large capacity. The charging time is longer, reaching more than 10 hours without changing the light. They will become faster and faster in the future, decreasing to 6 hours after about 2 months, and then becoming constant for about six months. The battery capacity will continue to decline, and it can be fully charged in 3-4 hours after 1 year. Of course, the battery should also be replaced or needs maintenance.

　　After buying a car, the lithium battery should have about 80% of its battery capacity and should be charged at home. The time should be 4 hours after the charger turns on the light, which will take three times.

　　The charging time of the lithium-ion battery for electric vehicles should not be too long, and it is advisable to change the light on the charger for one hour. It is better to undercharge the battery than overcharge it, otherwise the battery will be charged due to water shortage, swelling and swelling. Causing irreparable damage to lithium batteries.

　　If conditions permit, adjust the individual units of the entire electric vehicle lithium battery. For batteries that have passed the warranty period, supplement each unit with 3-4 milliliters of deionized water every three or four months.

　　The discharge and charging ports of the entire set of electric vehicle lithium batteries should be kept clean at all times to prevent copper rust at the contact points, which can cause overheating and damage due to poor contact.

　　Before the first charging, the lithium battery of the electric vehicle needs to run out of electricity, but it cannot run out. When buying a new electric vehicle, the battery level will not be too full, but it will not be too low, unless it is an old or inferior battery. When using it, everyone should estimate the approximate distance it can run based on the merchant's estimate, in order to avoid running out of electricity or running out of electricity.

　　Lithium battery electric vehicles do not require a special method of activation, as lithium batteries will naturally activate during electric vehicle operation.

　　Regular deep discharge is also beneficial for "activating" the battery, which can slightly increase its capacity. The general method is to perform a complete discharge of the battery on a regular basis.

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