Reply To: Battery pack selection ?

Aptera Community Aptera Discussions Battery pack selection ? Reply To: Battery pack selection ?

Aptera Community Aptera Discussions Battery pack selection ? Reply To: Battery pack selection ?

  • John Malcom

    Member
    August 22, 2021 at 11:54 am

    The EPA does not test every EV to certify their battery range. The manufacturer submits their own testing data. The EPA reviews that data, and makes a determination if it is sufficient or requires the EPA to test the vehicles based on their procedure and criteria. If the EPA is comfortable with the data summitted, they certify the battery range based on the manufacturer submitted data.

    I suspect that since Aptera is a startup (New in the market with no history) that the EPA will test the Aptera. Of course, for the testing to be both valid (returning an accurate result) and reliable Consistently returning the same result under the same testing conditions) the variance in batteries of the same KW range has to be small. This would not be the case if batteries of the same KW rating could be, from time to time, composed of different battery chemistries. (Consistent within the battery pack by maybe different between battery packs of the same rating)

    If Aptera uses different chemistries in battery assemblies of the same KW rating, even though architecturally appealing, and beneficial from the procurement perspective, It may be an issue with the EPA certifying mileage based on either Aptera summitted data or EPA testing.

    Probably moot at this point as we have no actual testing data based on a rigorous DOE (Design Of Experiments) from a close to production vehicle.

    Hopefully, we can get more information from the upcoming webinar on batteries mentioned by Sarah in her August update