Mr H
Active Member
Happened to me again at Tesco podpoint, was at 7kw but after shopping it was sat at 4kw and 17amp
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I am planning to use the Zappi in dumb mode tonight and go back to using the car timer / Teslafi to manage my offpeak charge so I will see if I get a different result before i raise a service request.
Mine charged OK last night as well....
It’s this inconsistency that’s really doing my nut in...
I've noticed a trend in mine which I would like someone with Teslafi and the issue to verify.
My charging seems fine and dandy at 32a when voltage is less than 230v, as soon as it creeps above 230v Teslafi records charging drops to at 18a. Witnessed this on several charges.
Thoughts?
My charging seems fine and dandy at 32a when voltage is less than 230v, as soon as it creeps above 230v Teslafi records charging drops to at 18a. Witnessed this on several charges.
Interesting observation but in my case it's definitely not related to a higher voltage. My voltage during charging is never above 225v.
Interesting observation but in my case it's definitely not related to a higher voltage. My voltage during charging is never above 225v.
Are you sure that you’re not just seeing the voltage rise as the current decreases? Depending on cable lengths etc it’s quite normal to see a voltage drop as the current rises, and vice versa. On my last charge the voltage was 227V at 32A, but rises to 240V at 17A. This is normal on my installation.Variance from some perceived initial voltage maybe? While you may never go above 225 do the lower amp points coincide with higher voltage points relative to the start voltage?
Variance from some perceived initial voltage maybe? While you may never go above 225 do the lower amp points coincide with higher voltage points relative to the start voltage?
You ought to treat yourself to a Raspberry Pi!I don't have Teslafi or Teslamate...
I think you are on to something but it may not be absolute voltage but the variation. I did not think I had suffered this but I have been back through my logs and actually I have on 2 occasions and yes they seem to coincide with a rise in voltage. in my case from 230 to 236. It states in the Tesla manual.Looking at my Teslafi logs it does seem voltage related, although in my case the cutoff is 238v. At that I get 32A, once it goes over that I get reduced A. Seems to vary A around 17 to 20 up to around 242v, anything beyond that I just get 17A.
Bummer as historically my voltage is stable in the high 240s...
You ought to treat yourself to a Raspberry Pi!
Are you sure that you’re not just seeing the voltage rise as the current decreases? Depending on cable lengths etc it’s quite normal to see a voltage drop as the current rises, and vice versa. On my last charge the voltage was 227V at 32A, but rises to 240V at 17A. This is normal on my installation.
the car is now interpreting what seem to be normal UK fluctuations in voltage as "unexpected fluctuations in input power" and thus reducing the charge current deliberately. If that is the case it looks as if they have made it way to aggressive, either on purpose or accidently