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Prime charging rates at home

Discussion in 'Prime Plug-in Charging' started by 4rpr15, Sep 10, 2017.

  1. 4rpr15

    4rpr15 Senior Member

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    I drive a total of 30 miles per day. Our electric company bills us .1311kwh. If I charge every night what does that come out to using a standard 120v charger the Prime comes with.
     
  2. bisco

    bisco cookie crumbler

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    about a buck a night.
     
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  3. Salamander_King

    Salamander_King Senior Member

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    Full charge from empty EV range is 6.5-6.8 kWh. x .1311kwh would be $0.85-0.89/charge. If you use climate prep with charge cord plugged in, with my experience, there is addtional 0.5-1.0 kWh electricity used depending on temp setting.
     
    #3 Salamander_King, Sep 10, 2017
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  4. 4rpr15

    4rpr15 Senior Member

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    What is climate prep and how does it function?
     
  5. bisco

    bisco cookie crumbler

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    and there is also a loss from the outlet to the car. typically 15%, from what i've read.
     
  6. Salamander_King

    Salamander_King Senior Member

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    It's a remote AC function that comes with all trims of PRIMES. In advanced you can use smartphone app to trun on AC to set temp, but mine is premium trim so I have to use key fob to turn it on. If the car is plugged in, it will not deplete traction battery's charge, but use additional electricity from the wall power.
     
  7. Salamander_King

    Salamander_King Senior Member

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    That's what I have read somewhere, but using Kill A Watt meter to measure actual kWh used to fully charge from 0 EV, I have been seeing 6.4-6.8kWh/charge. If 15% loss is included in this number, then actual charge used would be 5.44-5.78kWh, which seems too low for 8.8kWh capacity battery.
     

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  8. bisco

    bisco cookie crumbler

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    interesting. i suppose there is some loss after the power flows through the electric meter to the house, circuit breaker, and finally to the outlet for the evse, but my knowledge is limited.
     
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  9. markabele

    markabele owner of PiP, then Leaf, then Model 3

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    If it's like the original PiP, there is almost a 40% reserve when you add up buffers on each side. This would equate exactly with the numbers you are seeing.
     
  10. Salamander_King

    Salamander_King Senior Member

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    I've read those thread stating PiP has usable EV charge from 85%-23% on SOC. I can understand that EV is kicked out at 23% SOC, but what I don't understand on this statement is what happens to top 15% of SOC? I think many of the thread I’ve read says you can only charge the traction battery up to 85%, but is that true? You never get fully charged battery? If same number applies to PRIME, then out of 8.8kWh battery only 7.48kWh to 2.024kWh is usable for EV. That’s 5.456kWh of usable for EV.:unsure:
     
  11. bisco

    bisco cookie crumbler

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    yes, it's not good to fully charge or discharge lion batteries, so toyota buffers both ends. some mpg's allow user to over ride the high end, but it will shorten battery life if done too often.
    as for usable kWh's, what really matters is how many ev miles you get, and most people are quite pleased.
     
  12. Salamander_King

    Salamander_King Senior Member

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    Is that means the battery gauge when showing full is really at 85%?
     
  13. markabele

    markabele owner of PiP, then Leaf, then Model 3

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    Correct.
     
  14. 4rpr15

    4rpr15 Senior Member

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    I plug mine in at 12am to charge every evening. After 5-6 hours when it's done charging does it still waste electricity since it's plugged in? I read about some of the features about manually setting charging times, but I don't quite understand.

    Posted via the PriusChat mobile app.
     
  15. bisco

    bisco cookie crumbler

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    it uses a tiny amount of electricity inside the circuit board, like many devices around the home that are plugged in all the time.
    the timer is so that you can have it charged just before you leave. that way, it doesn't stay fully charged for hours on end, day after day.
     
  16. 4rpr15

    4rpr15 Senior Member

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    I tend to plug it in at midnight so if I wake up at 6am it's normally fully charged at that time so it may just stay plugged in for 1-2 hours after charging is complete. Not too terrible.
     
  17. bisco

    bisco cookie crumbler

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    that's fine. the timer is just for those who go to bed early.:cool:
     
  18. Gaëtan Lafrance

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    Hi!,

    A full charge cost me 0,50$ CND at 0,085$ per Kwh (cost for a condo of 153 appa. in Montréal)

    C'est un coût ridicule encore moins en dollards américain ( environ 0,40$ USD)
     
  19. Gaëtan Lafrance

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    My cost in Montréal is 0,085$CND per Kwh( big condo); for ful charge: 0,50$CND or 0,40$USD.

    C'est un coût ridicule pour faire plus de 56km ( 35 miles).
     
  20. GT4Prius

    GT4Prius Active Member

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    Depends.

    With 240 v L2 charging as I have, full charge is between 5.9 and 6.1kwh. This is as reported by my smart charger.

    240v L2 has less charging loss it would seem.

    Posted via the PriusChat mobile app.