Astrape
Member
The manual says the car sets the current to the maximum for the plug type in use. So a 16A connector will default to 16 which you could reduce to 13A in the Tesla. As I understand the granny charger does limit to 10A. Drawing 13A from a socket continuously is possible, its the same as connecting a 3kW fan heater or oil filled heater and leaving it running flat out overnight.Was wondering tho, if I plug in the 3pin plug, that gives me 13amp max, but the car would allow max 10A? (Saw videos of people charging that way and the car was limiting the amps to 10 automatically).
If I go with the one in the link instead, wouldn't the car increase the max amps a bit, maybe to 13A?
Most loads of this sort are hard (permanent) wired into a separate circuit in the installation to prevent them from contributing to an overload on the ring circuit. Bear in mind that when you are charging the car, there is only 4kW available on a 32A ring for other loads.
The other thing to bear in mind is how often plugs and sockets overheat due to poor connections; at the socket terminals, the plug terminals, or the fuse seat contacts. If you do charge in this way, check the plug and socket for any signs of being hot after the first hour of use, and at the end of charging, preferably every use. If they get hot, replace the plug / get an electrician to check the screw terminals in the socket. It would be prudent to limit the period of time you use the outlet in this way.
If its sub zero charging becomes inefficient at 10A/13A as current is wasted keeping the battery warm enough to charge. This may be 30% losses.
Disclaimer: Not an electrician - but an electrical engineer. An electrician may give you different answers to comply with regulations.
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