Separate names with a comma.
Discussion in 'Model S: Battery & Charging' started by Dutchmeeuw, Jun 3, 2019.
Yes, with some extra decimal point precision.
It is possible that Teslafi just reads the 100% estimated range that is stored in the car. No calculation needed. I can see that value from the diagnostic OBD2 port. The value in the car calculated by Tesla.
Your car has half the miles as mine. The 100% range on both cars had slowly declined to about 240 miles. Yet on or about May 16 with the same new software version, both car batteries started degrading rapidly. Coincidence? It doesn't feel like it. We need more data from more cars.
View attachment 419378
With data, it doesn’t look like degradation, looks like manipulation.
On 02 Feb 2017 at 100% and 76.4kWh of 76.4kWh remaining capacity, module voltages were about 4.19v.
Today, 14 June 2019, At 97% (where charging halted) and 64.3 kWh out of 66kWh capacity, module voltages are about 4.07v.
Only charged to 97%, after 1hr and 51 minutes on a supercharger.
This looks a lot like the max battery fiasco.
and 691 and 762 hp.
And 85kWh batteries, and ...
What do the relative voltages of each of the 96 strings show on a CANBUS scan with TM-SPY?
I've sent [email protected] 5 emails in the last several months and they are no longer responding.
So glad I'm still on V8.
Would be easy to verify if only someone with tm-spy and a canbus cable would look at what the BMS reports as SOC vs what is displayed on the dash....and what the kwh capacity reported by the BMS is.
How are you reading this number?
How do they explain the sudden loss of range. Gradual reduction in range is or can be normal but I don't know how they can say a sudden drop-off-the-cliff in range is normal or gradual.
Did they ever respond to your last message shown?
And here is 6 January 2018
both tm spy and remote s
I think they are further protecting the battery, expecting no one would notice.
Or it’s like max battery,
Both are trust issues.
I use scan-my-Tesla app and after 2019.6.3.2 update the battery buffer went from 4kWh to 5kWh thereby "stealing" 4kms of range pic in tweet
Jays on Twitter
When my wife gets home with my elm327, I'll go out and use scan my tesla to record what it is currently. I'm still on v8 and will stay on v8 as long as possible. If Tesla actually takes away range with a software update, I will be suing them without delay.
I removed all wifi aps and turned off wifi. Hopefully they'll only download software while on wifi. The staged software I've had for the last 6 months finally went away and no more yellow clock.
At this point, it's probably time to root the car.
Ok. That's exactly what I did yesterday manually based on the IC data and during the same ride, but was getting two different results for the total range:
135 RM @55% ==> 135/0.55 = 245.5 miles total range
120 RM @50% ==> 120/0.50 = 240 miles total range
Something not right ...
Rounding errors can cause the discrepancy you are seeing there. The ranges of those two calculated values overlap if you take rounding into account. You will get more repeatable numbers if you do the calculation when at a higher percentage charge, like 80 to 90%. Even better, if you take the readings shortly after charging, say to 80 or 90%, you should get pretty repeatable numbers, at least over the short term. But you will still have some rounding uncertainty with the RM value.
That is what I have experienced with data from charging my car.
Thanks for the feedback. Very helpful.
Remote S and TM Spy. See my note on manipulation above.
No, but it has only been a day.
That's how I view it.
Since the cell/module/battery voltages are reduced, I wonder what the performance impacts are from this theft.