Not charging fully to 47 miles

Discussion in 'Clarity' started by hansrx7, May 28, 2018.

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  1. hansrx7

    hansrx7 New Member

    Hi All,

    I have a 2018 Clarity PHEV bought in March 2018. Up until a few days ago, it used to charge fine (overnight @ 120V) to 47 miles. But lately, I am observing that it only charges to 41-42 miles even when left plugged in overnight. Has anyone seen this issue? Thanks in advance!
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  3. loomis2

    loomis2 Well-Known Member

    Have you been driving it in hv at all lately? The 47 miles is just an estimate based on recent driving activity. Our Clarity just finally showed above 47 miles in the past week or so. I think with the warm weather my wife can drive to work and back all on ev now. Before the gas engine would come on for the last two miles or so and that threw off the ev range estimate.
  4. jdonalds

    jdonalds Well-Known Member

    There are two possible causes.

    1) Some have reported the same thing as you and it's the car.

    2) The range estimate is based on your previous driving results. If you hot-foot the car the algorithm takes that into account when making the range estimate.

    In my case the last bit of our drive home involves a 14% one-half mile climb. For the rest of our drive we are getting good miles-per-kilowatt. Just as we are almost home that hill sucks up the power. I believe that is capping our range estimate because under these ideal spring conditions we are just seeing 48-50 EV mile range while many others are seeing much higher numbers.
    Johnhaydev likes this.
  5. hansrx7

    hansrx7 New Member

    Yes, I have been driving on HV little bit (8-10 miles) for the past week or so. This is outside my normal daily driving range. My commute is 43 miles and for the past 2 months I have been driving on EV only and every morning I am used to seeing 47 miles on full charge. Byt the time I come back home its usually 1 or 2miles left on EV. I don't understand why HV mode would result in a lower electric driving range?
  6. hansrx7

    hansrx7 New Member

    I see. I usually don't hot-foot the car except for a couple of times here and there which usually activates the HV mode. If indeed #2 is the case then should the reading come back to normal after a couple of days of normal EV driving?
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  8. insightman

    insightman Well-Known Member Subscriber

    Because the read-out is just a computer-generated estimate, the question is: Are you now actually getting fewer than 47 miles on a full charge?
  9. hansrx7

    hansrx7 New Member

    I will check tomorrow and report back
  10. Ken7

    Ken7 Active Member

    We actually hit an indicated high of 53 miles last week. We had been steadily moving up over the prior days. However now we’ve had some cooler weather and we’re back in the 44-45 mile range.

    I like the fact that given the right temperatures, the car can actually comfortably surpass the 47 mile advertised rating.

    I kid around with my wife, saying, ‘Hey, you’re moving into my Tesla mileage territory’. :)
  11. hansrx7

    hansrx7 New Member

    I got about 44 EV miles on full-charge with about 60% highway driving and the rest, city. On the highway, my speed was in the high 70s. So I guess I am not too far from the 47miles target which seemingly depends on the driving style.

    I did learn something new about my car and will continue to check the range just to see how it holds up over time. Thank you.
    insightman likes this.
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  13. loomis2

    loomis2 Well-Known Member

    All gas mileage and electric range are based on driving style. It is not something that only affects ev's.
  14. DaleL

    DaleL Active Member

    The estimated mileage, when charged, is based on previous driving history. The car "learns" how many miles to expect. In my case, after charging, my car estimates about 60 miles. My EV drives are along Florida A1A at speeds of 45 to 55 mph and the temperature does not require the heater to run. Perhaps you have been driving in EV mode at highway speeds of 70+ and in cold temperatures. The heater is a resistance heater (I believe.) and the battery loses efficiency at low temperatures.
  15. insightman

    insightman Well-Known Member Subscriber

    Yes, the Clarity PHEV's electric heat comes from a resistance heater when the engine is not running. However, the engine provides the heat when it is running.

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