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Mobile vs. Wall charger
- Thread starter PABresler
- Start date
Only if you’re comparing different charge voltages (120V vs 240V). Otherwise, same.
Charge calculator bottom of this page.
Eric33432
Member
Besides the "Juice" question, here is my take on the differences between the Tesla Mobile Connector and the Tesla Wall Connector:
For the Mobile Connector:
If your home's electrical system has the capacity, you will want to to have a licensed electrician install a 240 volt NEMA 14-50 receptacle with a 50 amp GFCI breaker, the appropriate size wire, and a quality Hubbell receptacle. This will give you the best charging experience using the TMC with 32 amp charging, ~7.5 kW.
If you have limited capacity on your electrical service and you cannot install a 50 circuit, any 240 volt circuit is better than using a 120 volt circuit, which is painfully slow, and will use more "juice" because all the car's systems must be operating whilst the car is charging, and it takes much longer with 120 volt charging. The Tesla Mobile Connector has NEMA Adapters for 15, 20, 30, and 50 amp 240 volt circuits
Whilst the Tesla Mobile Connector will give perfectly satisfactory service, most people on this forum recommend to install a Tesla Wall Connector if you have a place to do that. The cost is usually similar because the TWC does not require an expensive GFCI circuit breaker and Hubbell receptacle.
The TWC can be inside a garage or it can be installed outdoors on the side of your house or on a pedestal. If installed on a 60 amp circuit, this will give you 48 amp charging, on a 50 amp circuit it will give you 40 amp charging. No need for a GFCI breaker.
Even if you cannot install a 60 or 50 amp circuit, you can use a smaller 240 circuit with the Tesla Wall Connector. If you have limited electrical capacity, the TWC can be installed on as little as a 15 amp 240 volt circuit. But install it on as large a circuit as your capacity allows.
Be sure your electrician uses the correct size wire as EV charging is considered a continuous load and must be derated to 80% of its noncontinuous rating. We have found some electricians, and many handymen, do not understand this.
For the Mobile Connector:
If your home's electrical system has the capacity, you will want to to have a licensed electrician install a 240 volt NEMA 14-50 receptacle with a 50 amp GFCI breaker, the appropriate size wire, and a quality Hubbell receptacle. This will give you the best charging experience using the TMC with 32 amp charging, ~7.5 kW.
If you have limited capacity on your electrical service and you cannot install a 50 circuit, any 240 volt circuit is better than using a 120 volt circuit, which is painfully slow, and will use more "juice" because all the car's systems must be operating whilst the car is charging, and it takes much longer with 120 volt charging. The Tesla Mobile Connector has NEMA Adapters for 15, 20, 30, and 50 amp 240 volt circuits
Whilst the Tesla Mobile Connector will give perfectly satisfactory service, most people on this forum recommend to install a Tesla Wall Connector if you have a place to do that. The cost is usually similar because the TWC does not require an expensive GFCI circuit breaker and Hubbell receptacle.
The TWC can be inside a garage or it can be installed outdoors on the side of your house or on a pedestal. If installed on a 60 amp circuit, this will give you 48 amp charging, on a 50 amp circuit it will give you 40 amp charging. No need for a GFCI breaker.
Even if you cannot install a 60 or 50 amp circuit, you can use a smaller 240 circuit with the Tesla Wall Connector. If you have limited electrical capacity, the TWC can be installed on as little as a 15 amp 240 volt circuit. But install it on as large a circuit as your capacity allows.
Be sure your electrician uses the correct size wire as EV charging is considered a continuous load and must be derated to 80% of its noncontinuous rating. We have found some electricians, and many handymen, do not understand this.
airborne spoon
Active Member
Wall charger aka HPWC uses up to a 100A circuit and draws up to 80A (depending on version of HPWC and car). The mobile connector draws up to 40A on a 50A circuit (again depending on model of everything)
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