For those who don’t read the stats and metrics from your Tesla battery through a 3rd party wiring harness, what do you put as your battery degradation into ABRP?
I think default is 5%, but would you change it to 0% if you just bought the car? And every 3,000 miles add a percent until you get to 10% estimated degradation?
To see the total range the Model Y's battery management system is estimating is available you can use the Tesla app.
1) If you normally display the battery % state of charge on the main screen in the Model Y go to Display screen and scroll down to the Battery display and change this to Range.
2) Plug in the Model Y and start charging.
3) Using the Tesla app on your phone go to the Charging settings. Adjust the charging limit slider control, move this all the way to the right. The Tesla app will display the maximum estimated range. Note the maximum estimated range. Subtract the maximum estimated range value from 326 miles (The current estimated EPA combined City/Highway range for the Long Range Tesla Model Y) or else use 303 miles if the vehicle is the Performance Model Y. Divide this value by the EPA number and multiply by 100 to get the percentage of range less than the EPA estimate.
Example: The Tesla app shows an estimated range of 274 miles when fully charged.
326 - 274 = 52 miles;
52 / 326 X 100 = 16%
Note: this does not necessarily mean that the Model Y's battery has lost 16% of the capacity when new, only that the Tesla's battery management system estimate of the range is 16%. less than the EPA estimate. This could be due in part to needing to re-calibrate the Tesla vehicle's battery management system. To re-calibrate the battery you would need to charge the Tesla's battery pack above 95% and then deplete the battery charge to around 20% before charging. Repeat this for at least two additional charge and discharge cycles over the coming days. This should provide a more accurate estimate of the capacity of the battery and the range. Also, if you leave Sentry mode active all of the time, including when parked at your home location, the Tesla vehicle will not be able to enter sleep mode or deep sleep mode. Turn off Sentry mode when the Tesla vehicle is parked at your home location. When the Tesla vehicle enters sleep mode the high voltage battery is disconnected from the vehicle. This enables the battery management system to measure the open cell voltage (OCV) of the cells in the battery pack. The battery management system needs to periodically measure the OCV of the cells within the battery pack to be able to accurately estimate the capacity of the battery pack. I recall reading that the process of measuring the OCV can take several hours.
4) Lower the maximum charging limit to your usual setting and finish charging or else stop charging.
5) On the Display settings change the battery display from range back to % state of charge if that is your usual display preference.