Welcome to Tesla Motors Club
Discuss Tesla's Model S, Model 3, Model X, Model Y, Cybertruck, Roadster and More.

Best placement for an external L2 charger?


Active Member
Oct 2, 2020
The load balancing on the Gen2 Wall Connector requires a low voltage signaling wire to be run between the Wall Connector units. The maximum amperage of each Wall Connector is reduced by half when both vehicles are charging at the same time. If one vehicle completes charging first then charging will continue for the second vehicle at the maximum charging amperage for the circuit. The Gen3 Wall Connector is supposed to function in a similar fashion but does not require the signaling cable between the Gen3 Wall Connector units, instead uses WiFi. To date Tesla has not delivered the firmware for the Gen3 Wall Connector that will enable load balancing. If you have (2) Gen3 Wall Connectors installed on the same 60A circuit, currently, each Wall Connector must be set for a maximum of 30A so that the total charging amperage does not exceed 48A (24A for each Wall Connector) when both vehicles are charging at the same time.

About Us

Formed in 2006, Tesla Motors Club (TMC) was the first independent online Tesla community. Today it remains the largest and most dynamic community of Tesla enthusiasts. Learn more.

Do you value your experience at TMC? Consider becoming a Supporting Member of Tesla Motors Club. As a thank you for your contribution, you'll get nearly no ads in the Community and Groups sections. Additional perks are available depending on the level of contribution. Please visit the Account Upgrades page for more details.