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How many kW is Tesla's home charger?

2 Answers

OAngelo

09/01/25 5:13am

Tesla home charging stations generally have power ratings of 7kW and 20kW, corresponding to 220V and 380V voltages respectively. Consumers can understand it this way: the higher the power and voltage, the faster the charging speed. Of course, high-voltage and high-power charging facilities must first ensure a safe charging environment. Tesla charging methods are as follows: 1. Home charger: This involves installing a charging station in your own garage. Installation of 380V or 220V chargers first requires approval from the property management. 2. 4S store charging: 4S stores are equipped with superchargers, and charging services fall under the after-sales category. One hour of charging can provide a range of 480km. 3. Mobile charging: The charger is modified to have a standard power interface, allowing charging wherever there is a power source. However, mobile chargers typically only have 110V, making charging relatively slow, with a charging speed of approximately 20-30km/h. 4. Supercharger station charging: These are mainly located in urban areas, typically in commercial districts. Charging from 0% to full takes no more than 2 hours.

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OBrielle

09/13/25 7:58am

Tesla home charging stations typically support a maximum power output of around 11.5 kW at 240 volts, equivalent to 48 amps of current. However, the actual value may be adjusted to approximately 40 amps (about 9.6 kW) or lower depending on your home's circuit limitations. For a Model 3 with a medium-sized battery, a full charge only takes 6-8 hours, making it highly efficient. Charging speed is also affected by external temperatures; for instance, battery preheating in winter may slightly slow down the process. If your home's electrical system is outdated, you might need to upgrade the circuit first, but modern newly built homes usually face no obstacles. Higher power means faster charging, reducing time waste and avoiding the hassle of frequent public charging station use, thereby enhancing convenience. Remember, Tesla offers official installation services to help determine the specific power configuration, ensuring safety and stability.

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