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Battery Cooling: How Important?

Discussion in 'Electric Vehicles' started by camalaio, Oct 10, 2019.

  1. camalaio

    camalaio Member

    Joined:
    May 28, 2019
    Messages:
    278
    Location:
    Vernon, BC, Canada
    Hey folks,

    Talked to someone that was at a Level 3 charger by the airport with their new-to-them Mitsubishi i-MiEV. They previously owned a Nissan Leaf, which would heat up on mountain passes and refuse to charge (or charge very slowly) at Level 3 chargers along the way, making the journey quite a bit more annoying than necessary. We're talking a 5h drive now taking 10+h due to waiting for passively air-cooled batteries to cool down. The Mitsubishi uses the air conditioner and a fan to cool the battery during Level 3 charging, which should be better in theory.

    Has anyone experienced this with non-Tesla EVs? How big of an issue is battery cooling regarding long trips and fast charging? (Of course, this is limited to this topic -- battery cooling is great for other reasons as well)

    This info will be helpful in deciding a second future EV for myself, as well as EV recommendations for others depending on their driving habits.
     
    • Informative x 1
  2. Cripps

    Cripps Member

    Joined:
    Jan 2, 2018
    Messages:
    45
    Location:
    Victoria
    In general if you want to retain higher level 3 charging speeds on trips long enough to need multiple charges, then thermal management is essential.

    You might like to look at Bjorn Nyland’s YouTube channel who has tested many vehicles on 1000km runs and comments on battery management.
     

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