80 minutes 1. Tesla uses a super charging station, which can be fully charged in 20 minutes, fully charged in 80 minutes, and can travel over 400 kilometers. Tesla super charging pile uses 380v DC, which can greatly shorten the charging time. 2. However, most Tesla owners will install a single-phase wall charger in the garage or parking space, using 220V AC. This kind of charging can charge 6-7 kWh in one hour, which is converted into kilometers, about 40 kilometers. Use slow charging. In addition, if the household is a regional utility transformer, when the transformer load reaches its peak, the voltage will still drop slightly, which will also affect the charging speed of electric vehicles.