TMC is an independent, primarily volunteer organization that relies on ad revenue to cover its operating costs. Please consider whitelisting TMC on your ad blocker or making a Paypal contribution here: paypal.me/SupportTMC

Varying charge/discharge levels any benefit?

Discussion in 'Model S: Battery & Charging' started by jasonjax, Nov 20, 2015.

  1. jasonjax

    jasonjax Member

    Joined:
    Aug 20, 2015
    Messages:
    45
    Location:
    Ponte Vedra FL
    Hi folks,

    I'd say for 85% of my driving I am off to the office, visit same customers, drive home, charge. Rinse and repeat, and repeat, and repeat, and repeat.....

    Got me to wondering: Is there benefit to randomizing the level of discharge I let the battery get to? How about the charge? I charge to the recommended range every night, which leaves me around ~240 rated range every morning. I go on a trip once in a blue moon that requires superchargers etc. (one time in last ~5,000 miles)

    What's the collective thought on this question? I know lithium batteries don't have the same "memory" that older chemistry batteries have, but I still have the nagging thought that maybe it would be better to switch things up ever so often.
     
  2. cmu5p

    cmu5p Member

    Joined:
    Feb 3, 2015
    Messages:
    223
    Location:
    Shenandoah Valley, VA
    Interested in opinions on this also as I often (daily) change my charge limit based on what time in the wee hours I get home from work and how much super-off peak charging time I have left.
     
  3. David99

    David99 Active Member

    Joined:
    Jan 31, 2014
    Messages:
    2,048
    Location:
    Brea, Orange County
    I have never read or heard of anything that would support this. There is no such thing as a memory effect when charging to the same level every day.
     
  4. FlasherZ

    FlasherZ Sig Model S + Sig Model X + Model 3 Resv

    Joined:
    Jun 21, 2012
    Messages:
    7,019
    I don't worry about it at all. I normally leave it at 90%, but I'm not afraid to charge to 100% when I think I might need it. I don't try to time it so that I leave the SECOND it reaches 100%; I've let it sit at 100% for a day or so before, and while on vacation while charging with only 120V, I regularly kept it up at 100% so that I would be fine.

    My refurbished battery, installed Feb-2014, still charges to 266-267 miles in the spring-summer and 263ish in the winter.
     

Share This Page