Charging Speed, Battery Capacity and Prime itis

Discussion in 'Prime Plug-in Charging' started by johnamerc, Oct 17, 2018.

  1. burnout8488

    burnout8488 Member

    Joined:
    Apr 18, 2018
    113
    69
    0
    Location:
    Endwell, NY
    Vehicle:
    2018 Tesla Model 3
    Model:
    N/A
    The vehicle will keep the engine on longer, the colder it gets.

    Hello from Endwell!

    I've also noticed that as it gets colder, regen downhill will kick the gas engine on. Learning to just ignore it - in the summer it wouldn't do it at all. I can't be frustrated all Winter :)
     
  2. VTBIGDOG

    VTBIGDOG Active Member

    Joined:
    Dec 21, 2016
    211
    146
    0
    Location:
    USA
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Premium
    We are talking about one hill near the owners home. If the engine does not come on, the owner will not have to stop, turn off the car and turn it back on. MPG is relevant when the engine comes on going down the hill. If the engine never comes on, MPG is infinity, isn't it?

    Posted via the PriusChat mobile app.
     
  3. JimboPalmer

    JimboPalmer Tsar of all the Rushers

    Joined:
    Apr 14, 2009
    11,911
    6,130
    0
    Location:
    Greenwood MS USA
    Vehicle:
    2012 Prius v wagon
    Model:
    Three
    If, as we suspect, the engine is being run without gas as an air pump, because the HV Battery is 'full', then all this fussing about is not saving gas either. But it is losing range when in N.
     
  4. ed4271

    ed4271 Member

    Joined:
    Mar 4, 2017
    104
    62
    0
    Location:
    US
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Premium
    I've owned my Prius Prime since 2017 been through a lot of winters. During the winter months you will use the ice while driving. It's a fact that in cold weather the ice helps when your heating the compartment. Normally I drive back and forth to work with the the heat pump on in the EV mode but it does knock down miles I get with traction battery. In the wintertime your EV miles will decrease. This is a fact due to the winter temperatures and the ability of the lithium-ion battery to take a complete charged. One thing I guess you guys have to know that the heat pump is inefficient at any temperatures 13 degrees Fahrenheit below. Which mskes the I.C.E. turn on. That stands for internal combustion engine. This car is very efficient in hybrid mode. I drive to Rochester from Syracuse and I'm getting at least 62 miles to the gallon. From May to October I never fill up my car with fuel because I'm always driving EV mode. It's only when the weather gets cold when the ICE is used. Love this car. When it is below 13 degrees Fahrenheit I use the defroster which turns on the engine heat to warm up the car and defrost the windows. After that leave for work I drive the car on the EV mode and used the heated steering wheel and seat warmer works well. When the windows begins to fog I turn on the the auto AC heat defogger and feet. When it warms up a little window is defog I turn it off. That works well I have either 26 EV miles or 25 to start with. My commute to work it's only 14 miles and when I arrive at work I have about either 13 or 10 miles left. Sometimes more when the engines on charging the traction battery won't heat in the car. 20181116_051748.jpeg

    Posted via the PriusChat mobile app.
     
    JimboPalmer likes this.
  5. johnamerc

    johnamerc Junior Member

    Joined:
    Jan 3, 2004
    42
    18
    0
    Location:
    Ithaca, New York
    Vehicle:
    2018 Prius Prime
    Model:
    Prime Plus
     
  6. johnamerc

    johnamerc Junior Member

    Joined:
    Jan 3, 2004
    42
    18
    0
    Location:
    Ithaca, New York
    Vehicle:
    2018 Prius Prime
    Model:
    Prime Plus
    Thanks for your lengthy informative post. 13 and a half months under my Prime belt and I will need to admit that I sometimes wish I had followed the advise of a friend to "just go EV!"
    A glimmer of hope in September when I met a Tesla owner with a pull behind trailer/sleeper/supplemental battery. He claims a range of 600 miles between charges.
    Toyota reminds me of Kodak, the inventor of digital photography, going bankrupt by its defense silver and chemical business.
    Toyota is all about defending its investment in fossil fuel vehicles.
    I am willing to wager that 80% of Prime owners would go Tesla tomorrow if money were not an issue. I have driven to Florida and there are mucho charging stations including supercharges along the way.
    In the mean time I will start to explore a realistic supplemental battery rear storage area arrangement. I would gladly sacrifice my rear storage.
    Oh, by the way, I recently test drove a Kona and it would be just fine for me.

    Off to the races!

    More later.

    John

    Just go EV!

    37,500 miles (2,800 miles per month) 120 MPG lifetime per trip meter reading. Guessing about 50% EV miles

    Oh, and over 800,000 Prius Gen 1,2 and 3 miles.

    Stopped at my local dealer and noticed that the 2020 has a modified rear seat configuration.
     
  7. Colorado_Hiker

    Colorado_Hiker Junior Member

    Joined:
    Jul 8, 2018
    11
    11
    0
    Location:
    Denver, Colorado
    Vehicle:
    2018 Prius Prime
    Model:
    Plug-in Advanced
    What’s a “tumbleweed 2”???
     
  8. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    84,572
    37,179
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    the name of his prime
     
  9. ETC(SS)

    ETC(SS) The other One Percenter.....

    Joined:
    Oct 28, 2010
    5,704
    4,435
    0
    Location:
    Redneck Riviera (Gulf South)
    Vehicle:
    2010 Prius
    Model:
    II
    Successor to “Tumbleweed”?
     
  10. m8547

    m8547 Active Member

    Joined:
    Aug 8, 2018
    553
    320
    0
    Location:
    Colorado
    Vehicle:
    2018 Prius Prime
    Model:
    Prime Plus
    If the engine comes on on a downhill, it will use a tiny amount of gas to get started. For example I might see the MPG indicator go from 999 to around 600 on a 10 mile trip (a tiny amount of gas). It will then stop using gas while you are going down the hill, and then it will complete the warm-up cycle at the bottom of the hill.

    I'd rather let it fully warm up when it needs to, than try to outsmart it and shut it off. Leaving condensation in the engine and exhaust from running while cold can't be good for it. Even better is not to let the engine come on in the first place.

    It's also probably not great for it to run the engine for engine braking when it's cold. The engine was designed to run with hot oil, not cold. If I know I'll need engine braking to go down a hill, I'll usually try to let the engine warm up first.
     
  11. t_newt

    t_newt Member

    Joined:
    May 27, 2018
    59
    66
    0
    Location:
    94087
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Plus
    I thought ice was used to cool things down. :)

    (That's what I get for skimming a post too fast).
     
  12. vvillovv

    vvillovv Active Member

    Joined:
    Mar 19, 2013
    964
    351
    0
    Location:
    NY
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Plus
    Still looking to see who calls their car tumbleweed 2 LOL
    I agree, that shutting the Primes ICE off before it shuts itself off, seems to me to be counter intuitive, mostly because of the very perceptible clunking sound it makes for me when I've done it. The PiP never made that noise if I recall correct likely .

    You are right about it hurting mileage and using only friction braking.
    Although in the circumstances it may be the lesser of two evils?
     
  13. Prairie Dog

    Prairie Dog New Member

    Joined:
    Nov 29, 2019
    2
    2
    0
    Location:
    Canada
    Vehicle:
    2020 Prius Prime
    Model:
    Upgrade
    I am new to this forum and also to Prius so excuse any errors. I am using a ChargePoint Flex charger on a 40 amp circuit breaker with the charger set for such. I am seeing a charge rate of 3.57 kW going into my battery. You stated the Prime is rated at 3.3kW so am I ok charging at 3.57 and will this harm the battery over time.
     
    vvillovv likes this.
  14. JimboPalmer

    JimboPalmer Tsar of all the Rushers

    Joined:
    Apr 14, 2009
    11,911
    6,130
    0
    Location:
    Greenwood MS USA
    Vehicle:
    2012 Prius v wagon
    Model:
    Three
    The ChargePoint cannot over charge the Car. They negotiate the highest common Amperage they both can handle, but ultimately the Car is in charge of the maximum current flow.

    SAE J1772 - Wikipedia
     
    vvillovv likes this.
  15. Tideland Prius

    Tideland Prius Moderator of the North
    Staff Member

    Joined:
    Oct 2, 2004
    40,215
    11,726
    41
    Location:
    Canada
    Vehicle:
    2018 Prius Prime
    Model:
    Technology
    Current is the one you have to worry about. I have seen slightly more than 3.3kW on the ChargePoint station as well.

    P=V*A so assuming the car is controlling the amps (16A), it just means that the ChargePoint station is connected to a 220V outlet.

    The charger is on the car and not the station so the car will take care of itself.
     
    vvillovv and jerrymildred like this.
  16. Tha_Ape

    Tha_Ape Member

    Joined:
    Apr 9, 2019
    237
    140
    0
    Location:
    Washington, DC
    Vehicle:
    2017 Prius Prime
    Model:
    Plug-in Advanced
    There's a guy on this forum whose Prius tag (in the Entune App) is AChoiredTaste. From what I can tell, he does that ALL the time. He is consistantly in the top 10 of EV miles (I say EV, technically its the 999.9mpg club).

    I used EV exclusively for a while and was in the Top 12 at 900mi one month, he was at 1500mi. Hopefully he'll chime in here and say how his battery has been over time. At that time my range was 37mi (predicted)
     
  17. mczouav

    mczouav Junior Member

    Joined:
    Nov 5, 2017
    43
    24
    0
    Location:
    BE
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Premium
    i have a prime with 36k miles. Used battery about 70% of that distance. Now, the battery takes about 5.8-6.2 kwh of juice (according to openevse charger) from 0% to 100% (in the available ev range, for those that are going to ask) Nothing strange here. The stange bit is that it now charges it in 2h instead of 2h30 on a level 2 charger 16 amp 240v ac. I have been systematically observing this for a few months now. Prime is 27 month old. Any others having similar behaviour of shortened charge time? Does not make sense to me why it does it as the voltage/ amp have not changed. It is winter and range guess-o-meter still guesses 26 mi ish. But it really does 23 miles before reaching 0% at 32-40 F outside temp. My best guess is the battery is acting funny...

    I should add that i use the 8amp charge limit pretty much often and only use the 16 amp 240v power when needed more urgently. So i charge slow most of the time.

    Cheers
    Max

    Posted via the PriusChat mobile app.
     
  18. jerrymildred

    jerrymildred Senior Member

    Joined:
    Oct 28, 2016
    6,670
    8,273
    0
    Location:
    Tampa, FL
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Premium
    It would seem from your description that your battery capacity has dropped a little. My Prime is the same year as yours and it's at just over 38,000 miles. I checked a week or so ago and it took a little over 6.4 kWh to charge from 0.1 mile of range to 100% SOC.
     
    mczouav likes this.
  19. vvillovv

    vvillovv Active Member

    Joined:
    Mar 19, 2013
    964
    351
    0
    Location:
    NY
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Plus
    Like @Tideland Prius mentioned above, the car will take car of the traction pack charging. It's a computer thing. Sometimes, the charger will not charge the pack at it's normal / optimal rate.
     
  20. Otto75

    Otto75 New Member

    Joined:
    Oct 27, 2019
    4
    0
    0
    Location:
    Sopron / Hungary
    Vehicle:
    2020 Prius PHV
    Model:
    N/A
    I think not.
    A tesla consumes twice as much energy as a prime, at the same speed.
    A Kona is 1.5 times as much.
    In energy efficiency, prime is best after the electric bike.
    Ioniq ev is good in this regard, quite close.


    There are those who matter and some who do not. (environmental protection, future of our planet, etc)
     
Loading...