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Maximum charge rate actually 45 mi/hr

Discussion in 'Model 3: Battery & Charging' started by PoitNarf, Apr 10, 2018.

  1. PoitNarf

    PoitNarf My dog's breath smells like dog food

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    Tesla’s documentation says that the Model 3 is able to charge at up to 44 miles per hour when using a Wall Connector on a 240 volt 60 amp circuit. I’ve witnessed on several occasions that my Model 3 is actually able to get up to a charge rate of 45 miles per hour. Anyone else seeing this?
     
  2. sammyfan711

    sammyfan711 Member

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    Mine gets 46 miles per hour at 48 amps on occasion, usually 45 though
     
    • Informative x 1
  3. Zoomit

    Zoomit Active Member

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    Your voltage is probably just above 240V.
     
  4. PoitNarf

    PoitNarf My dog's breath smells like dog food

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    I have noticed the voltage spiking to 242 volts on occasion during charging but I’ve seen my Model 3 report the 45 mi/hr charge rate when the voltage is down a bit to 237 volts.
     
    • Helpful x 1
  5. Skidmark

    Skidmark Member

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    I've found the mi/hr rating when charging to be pretty useless. You should really only care about the kW the car is charging at.
     
    • Informative x 1
  6. nitzmahone

    nitzmahone Supporting Member

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    This. The mi/hr rating calculation appears to be reverse-engineered from the overall range calculation. So on a brand new battery, if you're getting a slightly higher maximum charge rate, my psychic powers tell me your 100% charge range is > 310mi (this is the case with mine- it reads 315mi at 100%). The true values for any given charge are battery SoC and kW draw, anything else is derived from "fluffy" values.
     
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