Charging Habits and Battery Health

[ksurfier]

Here’s my data for M3, did lots of supercharging and doesn’t seem to negatively impacted the battery…

4-5% initial degradation was in first 2 years or so…
Y - 100% SOC Range (miles)
X - Thousands of miles

Range loss of ~1.5 miles every 10,000 miles driven…or right about 1.5% per year.

currently 200 miles at 70%:

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[Supratachophobia]

The was an interview done with a Tesla battery engineer/Lithium expert a while back.

Summary was IIRC:
-Daily charging is fine (Best practice is 20% charging ie 50-70%, 40-60%)
-Avoid frequent deep charges 20-80% avoid depleting the battery to a low percentage during the week and only charging once etc.
-Its fine to do a bms calibration charge once in a while to 100%, but don't let it sit at a high SOC

He wasn't a Tesla engineer at the time but they hired him shortly after that video.