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Will a software-limited 70kWh battery enjoy less degradation than a 75kWh battery?

Discussion in 'Model S: Battery & Charging' started by syswei, Aug 5, 2016.

  1. syswei

    syswei Member

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    Apr 26, 2016
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    Greenwich, CT
    ...If charged to the same percentage, say 90%, each time?

    Put another way....As far as battery health, is charging a 70kWh battery to 90% effectively the same as charging a 75kWh to 84%?
     
  2. Saghost

    Saghost Active Member

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    Delaware
    In theory, yes. In practice, I believe the difference is so small that it will be lost in the noise, statistically - overwhelmed by the details of operating temperatures and cycles and aging.

    Tesla's guidance has been that charging to a level below 90% vs charging to 90% won't make a measurable difference for degradation.

    I don't know enough to evaluate that scientifically, but the anecdotal evidence on the forum seems to support it.
     
  3. Ibrido

    Ibrido Member

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    Oct 13, 2015
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    United Kingdom
    Charging 75kWh to 90% is same as software-limiting to 70kWh. Infact, 70kWh will have slightly more charging cycles per year as range is less.
     

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