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 and becoming a Supporting Member. For more info: Support TMC

Full throttle charging to 99%

Discussion in 'Model S: Battery & Charging' started by boonedocks, Jun 9, 2017.

  1. boonedocks

    boonedocks Active Member

    May 1, 2015
    Gainesville, GA
    Interesting thing I have discovered about my S100D. Don't do it often at all but today charged to 99% and had full 72Amps 230V (17kWh) all the way to 99%. I don't remember my 85D holding at full throttle charging to 99%.

    Anyone else noticed this as well?
  2. animorph

    animorph Active Member

    Apr 1, 2016
    Scottsdale, AZ
    My understanding just from TMC is that no throttling occurs when AC charging. I've charged to 100% twice, but before I had TeslaFi logging. So no data here.
  3. whttiger25

    whttiger25 Member

    Jun 25, 2016
    Oakland, CA
    This certainly wasn't true with my 90D. It woudl start throttling probably around 99% it would be drawing maybe 6A.
  4. Rocky_H

    Rocky_H Active Member

    Feb 19, 2015
    Boise, ID
    It certainly does still throttle on AC too, because it's doing it based on power level versus how full the battery is, and all the battery can "see" is DC all the time--no matter if it was AC first and then converted.

    You know how people talk about the taper curve at a Supercharger, and they're talking about it dropping to 90, 80, 60, 40kW, etc.? A 240V 40A flow is only 10kW. It's already so low, it's below the taper curve until the battery is up to about 98% or more, so people just don't ever look at their cars when they are charging that high to see it start dropping from 40A.

Share This Page

  • About Us

    Formed in 2006, Tesla Motors Club (TMC) was the first independent online Tesla community. Today it remains the largest and most dynamic community of Tesla enthusiasts. Learn more.
  • Do you value your experience at TMC? Consider becoming a Supporting Member of Tesla Motors Club. As a thank you for your contribution, you'll get nearly no ads in the Community and Groups sections. Additional perks are available depending on the level of contribution. Please visit the Account Upgrades page for more details.