bbulkow
Well-Known Member
- First Name
- Brian
- Joined
- Aug 30, 2022
- Threads
- 24
- Messages
- 889
- Reaction score
- 729
- Location
- menlo park, california
- Vehicles
- Honda CRV
- Thread starter
- #1
With my shiny new A2Z adapters, I'm now unafraid of road trips. Took a trip this week, modest, about 300 miles, to an area with few CCS stations, but some well placed Superchargers (accessible to us). Needed basically one full charge.
Pulled into a supercharger, started a charge, worked as expected. Plug and charge, yay, but didn't have time to get as much charge as I wanted. Left, drove around for a day.
Came back a day later. Plugged in, walked away, got notification from the Ford app that the charge session had stopped after about 3 minutes. Walked back, unplugged, replugged, and watched in the app.
I saw the kw go up to about 145. While that's a supported speed, the car's SOC was about 55%. That's not a reasonable speed at that SOC ('23 ER, hot day: about 100F ambient). Then after 3 minutes the session terminated. I'm assuming the car terminated the charge session because it was getting too many amps, but I didn't have CarScanner connected so don't have the evidence.
I moved to another stall in the same station, plugged in, and watched the charge rate. It went up to about 110kw, flattened out, drifted down as one expects. 110kw for the "broad middle" of charge seems fully reasonable.
My theory, then, is that stall was faulty, and it was faulty in that it delivered too much power. Eventually the car terminated the connection, for its own protection. *I don't have data to prove this it's only a theory*. I suppose another theory is the car often does get a one minute bump, and during that bump, the charger faulted out. When I got to the working stall, the car only pulled 110kw because internal circuits were already a bit warm.
If the charger was supplying more amps than requested, it's a little scary.
While we do have protection (thermals in the adapter, various protections in the car, various protections in the charger), a faulty charger that provides too many amps, to a car which also has some kind of fault, would be.... disastrous.
I couldn't find an easy way to report this to tesla, and I expect the stall is in operation today.
Questions:
1) any easy way to report a charging fault to Tesla? Or not worth it?
2) anyone else have experiences like this?
3) any other theories why there would be a disconnect after a short but high kw charging session, and my observation the kw at that SOC was so high?
Pulled into a supercharger, started a charge, worked as expected. Plug and charge, yay, but didn't have time to get as much charge as I wanted. Left, drove around for a day.
Came back a day later. Plugged in, walked away, got notification from the Ford app that the charge session had stopped after about 3 minutes. Walked back, unplugged, replugged, and watched in the app.
I saw the kw go up to about 145. While that's a supported speed, the car's SOC was about 55%. That's not a reasonable speed at that SOC ('23 ER, hot day: about 100F ambient). Then after 3 minutes the session terminated. I'm assuming the car terminated the charge session because it was getting too many amps, but I didn't have CarScanner connected so don't have the evidence.
I moved to another stall in the same station, plugged in, and watched the charge rate. It went up to about 110kw, flattened out, drifted down as one expects. 110kw for the "broad middle" of charge seems fully reasonable.
My theory, then, is that stall was faulty, and it was faulty in that it delivered too much power. Eventually the car terminated the connection, for its own protection. *I don't have data to prove this it's only a theory*. I suppose another theory is the car often does get a one minute bump, and during that bump, the charger faulted out. When I got to the working stall, the car only pulled 110kw because internal circuits were already a bit warm.
If the charger was supplying more amps than requested, it's a little scary.
While we do have protection (thermals in the adapter, various protections in the car, various protections in the charger), a faulty charger that provides too many amps, to a car which also has some kind of fault, would be.... disastrous.
I couldn't find an easy way to report this to tesla, and I expect the stall is in operation today.
Questions:
1) any easy way to report a charging fault to Tesla? Or not worth it?
2) anyone else have experiences like this?
3) any other theories why there would be a disconnect after a short but high kw charging session, and my observation the kw at that SOC was so high?
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