110v vs 220v

Discussion in 'Cooper SE' started by Brewer Fan, Jul 2, 2022.

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  1. Brewer Fan

    Brewer Fan Member

    It’s time for my daily dumb question! LOL! We have a 110v outlet and a 220v (level 2) charger installed. For now, I’m usually only using 20-25 miles a day on my Mini so we are charging at night- after the peak hours of electricity cost. My husband says it costs the same if we use the 220v for 3 hours as it would using the 110v for 6 hours - your thoughts?
     
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  3. revorg

    revorg Well-Known Member

    My utility company charges by the kilowatt-hour, not by the volts. A charge for your SE would cost the same, regardless of how long it takes. I much prefer to charge with my Level 2 than with the Level 2 that came with the car.
     
  4. insightman

    insightman Well-Known Member Subscriber

    Why do you prefer your Level 2 over the Level 2 that came with the car? Does your Level 2 provide data that you use?
     
  5. revorg

    revorg Well-Known Member

    Oops. Uncorrected typo. I much prefer to charge with my Level 2 than with the Level 1...
    (So much for proofreading.)
     
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  6. insightman

    insightman Well-Known Member Subscriber

    I often find myself scrambling to correct my posts within the 5 minute limit after I post them. You can still edit posts older than 5 minutes, but a notice appears with the post, giving evidence of my lack of proofreading before clicking POST REPLY. I'm extra frustrated when people reply while I'm still correcting my post!

    I just corrected this post 3 separate times.
     
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  8. Brewer Fan

    Brewer Fan Member

    I was trying to delete a post I made and couldn’t figure how to do it. We are headed to Ann Arbor this week….one of my favorite places….unfortunately too far for my Mini SE (Rita) to travel.
     
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  9. Puppethead

    Puppethead Well-Known Member

    It's not just me then! :D
     
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  10. JonR

    JonR Well-Known Member

    On average, Level 2 charging was 5.6% more efficient than Level 1 (89.4% vs. 83.8%). In those charges in which the battery took up less than 4 kWh, this difference in efficiency was even greater: 87.2% for Level 2 vs. 74.2% for Level 1. ​

    https://ieeexplore.ieee.org/document/7046253

    So 24 miles is about 6 kWh.
    Level 1: 1.25 * 6 = 7.5 kWh
    Level 2: 1.13 * 6 = 6.78 kWh

    Average cost is about $0.11 per kWh so...
    .11 * 7.5 = $0.83
    .11 * 6.78 = $0.75

    8 cents difference per day or another way to look at it, a little over a penny per kWh.

    You'll also find articles online that level 1 is better for battery life.
    https://pluginamerica.org/ask-ev-experts-charging-etiquette/
     

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