Would you upgrade to DC Fast Charging if the option was avalible?

Discussion in 'Prime Plug-in Charging' started by black_jmyntrn, Mar 25, 2025.

  1. black_jmyntrn

    black_jmyntrn Senior Member

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    Imagine charging your OEM HV battery in just 16 minutes! I'm curious—wouldn't it be amazing to have DC fast charging available for your vehicle? Many of us might already live near a DC fast charger, making this upgrade even more practical. And here's another thought—would you also consider upgrading your battery cells to achieve, say, a 100-mile EV range with a recharge time of under an hour?

    Personally, owning a 2017 Prime, I've considered purchasing high-mileage, beaten-up units specifically to swap out parts and resell them. But I'm curious about other owners out there: Are there any adventurous folks who'd seriously consider making this leap and upgrading their Prius if the option became available?
     
    john1701a likes this.
  2. john1701a

    john1701a Prius Guru

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    Prius PHV in Japan has supported DC in the past. That's why the port door on Prime is so large. It takes about 20 minutes to go from 0 to 80%.

    With upcoming new battery chemistry and increased capacity, there has been consideration of the idea to support DC. The big assist in that regard is longer needing a second port to support the ability. Naturally, speed would be limited. But the theoretical future ability to pull DC directly from a large & affordable Na-Ion home battery-bank is an interesting step forward most people haven't ever thought of. That would certainly be an intriguing paradigm shift.
     
    #2 john1701a, Mar 26, 2025
    Last edited: Mar 26, 2025
  3. vvillovv

    vvillovv Senior Member

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    The house uses about 100 kW a week. If I added DC Fast and had 100kW pack I'd easily double triple or quadruple my electric bill every month.

    I've checked out a few DC chargers and superchargers, and if you own an EV BEV whatever, they are great if you understand how they work and don't have expectations that go beyond what they can deliver.

    I've talked with a few new EV owners and some of them had no clue about how to charge and probably thought DC fast was free, probably from all the hype about EVs , BEVs.

    I"m sure there are a lot of charging tricks the Huge packs can use to accept 20 or 50c speeds that could make smaller packs burn up in under a year when exposed to those kinds of throttles on a regular basis and in all the extreme ambient conditions some of them have to deal with,

    It sure would be nice if all packs were similar enough to previous gen packs that the supply would be semi continuous across at least two, three or more generations, like Gen 2 to 3 Prius.

    Or maybe even if an upgrade from Lithium to Solid State might actually happen one day. We can always hope. (y)
     
    #3 vvillovv, Mar 26, 2025
    Last edited: Mar 26, 2025
  4. bisco

    bisco cookie crumbler

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    For 50 miles? Nope
     
  5. black_jmyntrn

    black_jmyntrn Senior Member

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    what about for 100 miles?


    You know.. the PHEV models... the cells are all the same right?

    here.. i started this right where you need it.


    Thank you for these words, I plan to make this available here in the US...
     
  6. vvillovv

    vvillovv Senior Member

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    #6 vvillovv, Mar 28, 2025
    Last edited: Mar 28, 2025
  7. black_jmyntrn

    black_jmyntrn Senior Member

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  8. Paul Gregory

    Paul Gregory Senior Member

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    I don't think fast charging for vehicles works quite like fast charging for phones. Some of the newer USB standard allow for the power source to supply higher voltages; 9V, 12V, 15V, 20V etc., and the internals of the device transform the higher wattage it back to 5V, so that it can charge the battery with more amps than the cable would carry if it were at 5 volts.

    From what I gather, fast vehicle charging uses higher currents.
     
  9. black_jmyntrn

    black_jmyntrn Senior Member

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    I follow your logic, i think once you review the schematics of the HV battery and Charging system from a JDM Spec Prius Prime 2017 then the US Spec same year and model, you'll understand how the components from a JDM, once installed will make the US spec fast charging using the same battery. :)