dtbaker61
Well-Known Member
- First Name
- Dan
- Joined
- May 11, 2020
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- 104
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- santa fe,nm
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- www.envirokarma.org
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- MME (delivered 2/26/21), DIY eMiata BEV
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- Solar Sales/install
with stock mobile charger:For the majority of vehicle operators, setting current limitations from the vehicle is the more dangerous approach.
There is *no way* for any vehicle to communicate with a household circuit and answer the question "how much current can you safely carry?"
One of the reasons we use EVSEs like the Ford Mobile charger or a Grizzl-E is to answer that question.
In the case of the Grizzl-E, it's the installer's responsibility to program in the correct answer via dip switches.
Ford's mobile charger assumes that national electric codes designed for fire safety were followed. If a 14-50 connector is plugged into the Ford mobile charger, then per the NEC limitations on the use of that type of plug and receptacle, and limitations of the EVSE itself, the EVSE informs the car that it may draw up to 30-32 amps of current. This is the right way to do it. The only bad thing is that Ford isn't selling mobile charger connectors for other NEMA receptacles like 14-30 and so on.
European Mach-E owners are able to buy a variety of connectors for their various standards/limits. Maybe someday we'll have something comparable.
14-50 receptacle with 6awg wires and 50amp breaker = good
'regular' 120v outlet with 15a circuit breaker = good
....everything else is questionable until an electrician clears it
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