30a 120v Charging Reduced to 10a?

[Bwkemarshall]

Does anyone know why the Ford Lighting reduces the charging rate to 10A for all 120V hook ups I’m plugging into a TT–30 30A receptacle (Generator & Campgrounds) but it only charges at 10A.?
I’m using the AMProad 40A mobile charger, which allows it to set 120V 24A but when I look at the Ford statistics on the mobile app it’s only charging at 10A..
Any one have a workaround to be able to charge faster on the 30 amp circuit?

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[Monkey]

Been discussed a bunch. You'll have to ask Ford what their logic is on this, but it's super-annoying. Only way to charge faster is to get it on a 240V outlet.

 

[TaxmanHog]

Safety for the masses, the truck assumes that you're on a limited capacity 15 amp circuit and reduces the demand to prevent overtaxing that circuit, it has no way to determine that you're on a higher capacity 120v circuit.

 

[luebri]

Safety for the masses, the truck assumes that you're on a limited capacity 15 amp circuit and reduces the demand to prevent overtaxing that circuit, it has no way to determine that you're on a higher capacity 120v circuit.

This "safety" non sense is ridiculous. There are so many scenarios that people can do dumb crap if they dont know what they are doing. Im fairly certain you could easily overload the 30 amp truck outlet in our bed, what is the difference?!?! I do not appreciate @Ford Motor Company treating us like idiots on this one.

My favorite example a safety "run a muck" attached.

 

[Heliian]

fairly certain you could easily overload the 30 amp truck outlet in our bed, what is the difference?!?! I

Ford knows what you can draw from the truck.
Liability is huge for Ford.

Also, going higher at 120v makes it less efficient and it can't run the batt heater at 120v either.

Cost and weight savings would be a more direct reason.

I do wish they would have a 120v batt heater. I don't have 240v at work and the truck gets cold after a shift.

 

[SilverKlister]

Does anyone know why the Ford Lighting reduces the charging rate to 10A for all 120V hook ups I’m plugging into a TT–30 30A receptacle (Generator & Campgrounds) but it only charges at 10A.?

It's part of the J-1772 charging specification for level 1 charging. Whenever a EVSE sees a 120V input, it limits the charging to a maximum of 12A continuous. The vehicle manufacturer can further limit the maximum current drawn to a level less than 12A continuous. My version of the Bolt EV limits level 1 charging to 8A, with the option to override it to 12A on the car's center display, after you plug in, and yes, you have to intervene every time you charge.

I found this out by plugging into a TT-30 at a campground years ago. I would have gotten the same charging session if I used the regular old NEMA 5-15 and the small charger which came with the car.

SAE J1772 - Wikipedia

 

[TaxmanHog]

This "safety" non sense is ridiculous. There are so many scenarios that people can do dumb crap if they dont know what they are doing. Im fairly certain you could easily overload the 30 amp truck outlet in our bed, what is the difference?!?! I do not appreciate @Ford Motor Company treating us like idiots on this one.

The PPOB has a designed 30 amp x240v & 20 amp x 120v circuit breaker with KNOWN output capacity.

 

[luebri]

It's part of the J-1772 charging specification for level 1 charging. Whenever a EVSE sees a 120V input, it limits the charging to a maximum of 12A continuous. The vehicle manufacturer can further limit the maximum current drawn to a level less than 12A continuous. My version of the Bolt EV limits level 1 charging to 8A, with the option to override it to 12A on the car's center display, after you plug in, and yes, you have to intervene every time you charge.

I found this out by plugging into a TT-30 at a campground years ago. I would have gotten the same charging session if I used the regular old NEMA 5-15 and the small charger which came with the car.

SAE J1772 - Wikipedia

Interesting. Tesla which is obviously not j-1772 does allow faster 120v charging though from my understanding.

 

[Henry Ford]

There are so many scenarios that people can do dumb crap if they dont know what they are doing.

...and Ford gets sued every time. They replaced our dash mats because someone dumped a Big Gulp on the original one. Do you think they're going to let that same yahoo plug whatever he wants into the charging port?

 

[hturnerfamily]

Ford has no risk or liability when it comes to 'limits' on 120v charging...

it's up to the owner to decide what outlet or voltage to use, but the 'limit' is more about understanding that most 120v outlet circuits are potentially already being used by some other devices.
Therefore, the obvious reason for any 'limit' is to contain the amperage used by the EVSE to an amount that provides the additional room for those other items to continue to be powered, without tripping the breaker. The EVSE also can not know whether the circuit/breaker is a 15 amp size, a 20 amp size, or whether any other outlets are on that same circuit(typically, there are MULTIPLES)...

The Chevy Bolt, and I have two sons each with one, give the owner the ability to use the 'default' 8amp 120v charging, OR to use the optional 12amp power, if the owner believe the outlet/circuit can handle the additional amperage. I like this option - it would be nice for the Ford EVSE 120v option to give us this, too, or allow the truck to give that option.

It's ALWAYS up to the owner if the breaker trips, in EITHER condition, but at least it gives an option. Ford or Chevrolet/GM, or any other manufacturer or EVSE device manufacturer has no risk or liability, no more than ANY manufacturer of ANY type device that plugs into a standard 120v outlet.

240v Outlets, on the other hand, are typically the ONLY outlet on the whole Circuit, are generally DEDICATED to a single specific usage, and therefore aren't needing to worry about 'other' items being powered at the same time - giving the EVSE the Full Amperage that the circuit/breaker provides.

If you use the argument that the 120v option should not 'limit' your amperage to only 10 to 12 amps, since the outlet may be on an either 15amp or 20amp circuit/breaker, you could also use that same argument that the NEMA 14-50 outlet, on a 50amp 240v circuit/breaker, should NOT limit the Ford EVSE to 'only' 30amps. The EVSE is the limit in this condition, NOT the circuit/outlet/breaker.
The same applies to the 120v EVSE option, but for a different reason.

 

[TaxmanHog]

Obviously......................

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