Frequently Asked Questions - Home Charging Installation

Home Charging Behaviour

Home Charging Installation

    Wall Connector

    Gen 2 Wall Connector

    Public Charging


    Home Charging Behaviour

    What's a best practice for charging a Tesla at home?
    We recommend plugging in every evening to top off the battery.

    What percentage should I charge the battery to?
    For regular use, we recommend keeping your car set within the 'Daily' range bracket, up to approximately 90%. Charging up to 100% is best saved for when you are preparing for a longer trip. You can adjust how full the battery charges from the charge settings menu.

    Should I wait for the battery to fully deplete before charging?
    Tesla uses lithium ion batteries so there is no memory effect, this means there is no need to deplete the battery before charging. We recommend plugging in as often as possible.

    How long does it take to charge a Tesla?
    Mobile Connector and Wall Connector charging speeds both vary by car and available power supply.

    Home Charging Installation

    How long does it take to install home charging equipment?
    Home charging equipment installation can take several hours. More complicated jobs may take up to two days.

    How much does installing a Tesla home charging equipment cost?
    Installation costs vary depending on the electrical system and the type of installation. Tesla provides a list of recommended electricians in your area who can provide you a quote.

    Can I use a normal outlet to charge?
    Yes. A Type G (220 – 240 V) adapter is included as standard equipment with all new Tesla cars. This provides approximately two to four miles of range per hour of charge depending on the car. For the best home charging experience, we recommend installing a Wall Connector.

    I have an existing 240 volt outlet in my garage. Can I use it?
    There are many different types of 240 volt outlets. Tesla supports adapters for the most common outlets.

    Where can I find out more about incentives specific to home charging?

    Incentives specific to home charging installation are typically administered on a local basis, often as time-of-use electricity rates or rebates from utility providers. Contact your electric utility provider to find out if they have special rates for electric car charging.

    Why does my Tesla Wall Connector require additional equipment and costs to be installed?

    UK Requirements for Electrical Installations (BS 7671) dictate that EV charging points installed outdoors on a PME (TN-C-S) earthing system, should have an earth rod with sufficiently low resistance or a means to disconnect all conductors in the event of a break in the combined neutral and earth conductor. Installing an earth rod with sufficiently low resistance is typically not viable on many installations. In addition, charging points in the UK have to adhere to the IEC 61851-1 standard, which does not allow a charging point to internally disconnect the earth conductor. Therefore, a charging point product in the UK cannot have a built-in means to comply with BS 7671. Hence typically requiring an external means of isolation. Please refer to the application note at the end of the installation manual for more details on this.

    Does my Tesla Wall Connector require an earth rod?

    There are various options available to ensure compliance with the UK Requirements for Electrical Installations (BS 7671) for EV charging points installed outdoors on a PME (TN-C-S) earthing system. It is the responsibility of the installer to ensure that the installation complies with local regulations. In many situations, an earth rod will not meet these requirements. Please refer to the application note at the end of the installation manual for more details on this.

    Does my Tesla Wall Connector require an isolation transformer?

    There are various options available to ensure compliance with the UK Requirements for Electrical Installations (BS 7671) for EV charging points installed outdoors on a PME (TN-C-S) earthing system. It is the responsibility of the installer to ensure that the installation complies with local regulations. An isolation transformer might not be the most cost-effective option. Please refer to the application note at the end of the installation manual for more details on this.

    Does my Tesla Wall Connector require a PEN-fault detection device?

    There are various options available to ensure compliance with the UK Requirements for Electrical Installations (BS 7671) for EV charging points installed outdoors on a PME (TN-C-S) earthing system. It is the responsibility of the installer to ensure that the installation complies with local regulations. A PEN-fault detection device would be the most practical option in many cases. Please refer to the application note at the end of the installation manual for more details on this.

    Wall Connector

    Do I have to install a Tesla Wall Connector?
    The Wall Connector is our recommended home charging solution, as it provides the most convenience and the fastest charging speeds. However, a Tesla can also be charged with the Mobile Connector or at universal charging stations with a Type 2 connector.

    How do I connect my Wall Connector to Wi-Fi?
    By following the steps for connecting a Wall Connector to local Wi-Fi, you can ensure that your Wall Connector stays up-to-date with over-the-air firmware updates and remote diagnostics.

    I have two Tesla cars. What’s the best option for charging both at the same time?
    Installing two Wall Connectors configured for power sharing would be the best option.

    Gen 2 Wall Connector

    Which residual current device (RCD) should I use with my installation?
    The standards for installing charge points state that every individual connector should be protected with an RCD that protects against direct current leaking. The Tesla Gen 2 Wall Connector does not measure DC current leaking, so an RCD Type B or a specific Type A-EV needs to be installed. National regulations can vary so always check with your local recommended electrician.

    Public Charging

    Why is Supercharging so much faster than charging at home?
    Superchargers skip the onboard charger of the vehicle, providing up to 250kW of direct current (DC) power to the battery. This level of power requires dedicated transformers and utility connections which are not available in residential situations.

    Can I just use a local Supercharger to charge my car?
    Yes, but the best charging experience will always be to charge at home for your convenience.

    What is Destination Charging?
    We work with hotels, resorts, restaurants and other hospitality based locations to install Wall Connectors to enable charging when away from home.

    Back to Home Charging Overview

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