wwhitney wrote:So for a knowledgeable user to occasionally do this by controlling the maximum current through an EV's interface, rather than through an EVSE with the proper pilot signal, strikes me as a reasonable compromise. If it would be a regular occurence, it would be better to get an EVSE with the proper pilot signal or to use a 50 amp circuit. I'm not a fan of the "nobody is going to use it but me" argument.
Good point about the circuit breaker being the safety factor in all this.
BTW, in the Tesla whatever you manually change the the amps to at that GPS location it remembers it. i.e. mine stays at 32a in my garage even if I charged at a campground at 40a with the same UMC. ie. If you go to your parents for a long holiday or whatever and they have older home with even 120v receptacles in their garage you can dial it to 9a (or whatever) to be extra safe and it will default to that the next time so you (or spouse) do not have to remember.
I think the Gen II Volts do the same ... remember to stay on 8a if that is what was used at a location before.
On the related threads topic, I wonder if the Gen II LEAFs do GPS/location base remembering for these things.
FYI on warning in the Volt manual:
Volt manual text: Using a charge level that exceeds the electrical circuit or electrical outlet capacity may start a fire or damage the electrical circuit. Use the lowest charge level until a qualified electrician inspects the electrical circuit capacity. Use the lowest charge level if the electrical circuit or electrical outlet capacity is not known.
FYI on Tesla manual on its lowering amperage button AND the builtin safety detection
Tesla manual text: The current [amperage] automatically sets to the maximum current available from the attached charge cable, unless it was previously reduced to a lower level. If needed, touch the up/down arrows to change the current (for example, you may want to reduce the current if you are concerned about overloading a domestic wiring circuit shared by other equipment).
It is not possible to set the charging current to a level that exceeds the maximum available from the attached charge cable.
When you change the current, Model X remembers the location. So if you subsequently charge at the same location, you do not need to change it again. Note: If Model X automatically reduced a charging location's current because of f-luctuations in input power (see the note in Charging Status on page 143), Tesla recommends charging at the lower current until the underlying problem is resolved and the charging location can provide consistent power.
Note: If Model X is charging and detects unexpected fluctuations in the input power, it automatically reduces the charging current by 25%. For example, a 40 amp current is reduced to 30 amps. This automatic current reduction increases robustness and safety in situations when a problem exists outside of Regular maintenance is the key to ensuring the continued reliability and efficiency of your Model X.