Log in


Chill Upgrade Membership Ludicrous Plaid!
  • Home
  • Is This Normal Battery Health?

Is This Normal Battery Health?

  • August 02, 2021 1:27 PM
    Reply # 10789705 on 10752249

    I’m a little surprised the myth of the rated range changing according to your driving habits is still going strong. I thought that died in 2018?

    The rated range is consistent in the way it’s calculated - depending on which car you have, it’s the EPA range divided by whatever the BMS (Battery Management System) thinks is available in the battery. It does not change based on driving style or weather or anything else.

    When you enter a destination and look at the trip planner, then that will give a more accurate indication based on road conditions etc., and will adjust during your trip dynamically, based on the last 15 -30 miles of driving.

    To answer the OP’s question, a 2% drop within the first year is pretty normal. The rate of degradation generally slows. My almost 3 year old Model 3 show about 6.5% degradation from new and hasn’t really gotten any worse in the last 12 months.

    Last modified: August 02, 2021 1:28 PM | Mark Hall
  • July 25, 2021 11:38 PM
    Reply # 10774529 on 10752249

    The range-in-miles prediction is at least in part based on your recent average consumption (Watt-hours per mile) which is poorer on highway trips (due to reduced regen). It may take a little (a few charge cycles or a few hundred miles) while for that period of higher consumption to drop off the end of the history being used to compute the range prediction.

    How well does the battery indicator agree with the range predicted on the right side of the energy graph screen? That's based just on the average consumption shown on the plot.

    Dave

  • July 16, 2021 10:27 AM
    Reply # 10755989 on 10752249

    https://electrek.co/2020/06/06/tesla-battery-degradation-replacement/

  • July 15, 2021 8:49 PM
    Reply # 10754722 on 10752249

    I guess my point is, the car is rated and has always ‘predicted’ 263 on a 100% charge so why would it ‘predict’ less now on a 100% charge unless the battery has degraded? 

  • July 15, 2021 7:43 PM
    Reply # 10754617 on 10752249

    Charge % is factual (battery is fully charged) whereas charge "miles" is predictive.  How can it predict how far you'll go on a charge? How can you predict how far you'll go on a full tank of gas.  All you know is that your fuel tank was a 100% full by the fuel gauge reading. Stick with percent. "Your mileage may vary" holds true.

     Regarding super charging to 100% as you indicated, the superchargers are not there to charge you to 100% every time you stop. That's a very inefficient way to travel.

    Last modified: July 15, 2021 7:47 PM | Richard Settembre
  • July 14, 2021 9:45 PM
    Message # 10752249

    I have had my 2021 Tesla Model 3 rear wheel drive for just under 4 months. I charge to about 70% for normal use. I have made a couple trips from NY to SC and used super chargers to charge to 100% while making that trip. At home I charge with a nema 14-50 at 32amps/220 volts. My battery health shows full charge to 256 instead of the rated 263. That’s a 2.6% drop in under 4 months. Is that normal? Does battery health improve or will it always be 256 or less now for full charge? I don’t think the battery has ever been below 15% charge even when traveling. 

COPYRIGHT © 2020 TOCNYS. ALL RIGHTS RESERVED.

TESLA OWNERS CLUB NEW YORK STATE IS AN INDEPENDENT ENTHUSIAST ORGANIZATION AND IS NOT AFFILIATED WITH TESLA MOTORS, INC. OR ITS SUBSIDIARIES, TESLA, MODEL S, MODEL X, MODEL 3, POWERWALL AND THE "TESLA", "T" AND "TESLA AND T FLAG" DESIGNS, AND CERTAIN OTHER MARKS, ARE TRADEMARKS OR REGISTERED TRADEMARKS OF TESLA MOTORS INC. IN THE UNITED STATES AND OTHER COUNTIES. READ OUR PRIVACY POLICY.

Email: info@tocnys.org
Phone: (518) 218-6715

Address:
1260 Lyell Ave
Rochester, NY 14606

Powered by Wild Apricot Membership Software