… charging …charging …CHARGING !!!

  • … charging …charging …CHARGING !!!

     trickster92 updated 1 week, 1 day ago 5 Members · 6 Posts
  • edHo66

    October 18, 2021 at 7:18 am

    I embraced the fascinating world of EV when I got my Mach-E in May of this year. Since then I drove almost 7,900 miles, I made ultra long trips lasting three days of continuous driving and very quickly I was confronted with the ugly realities of range anxiety … no matter how good your EV is, how fast it is … it is rendered useless if you run out of juice to propel it. So, I have to put everything in second tier but charging. Ford claim that Mach-E is able to accept up to 150 kW of charging rate, which is true BUT ONLY FOR 90 SECONDS !!! So my typical SOC during prolonged road trips, is 110-145 kW for 90 sec’s, then 55-75kW up to 80% (35 minutes), then drops all the down to 7-11kW; for me to charge from 80% to 90% during road trips it would take another 45 minutes, and then to 100% another 35 minutes. Tesla’s SOC curve is much more aggressive.

    I am eager to find out from this forum, and from members who will be getting the first deliveries of either R1T or R1S, the
    characteristics of the charging curve. No matter what Rivian claim is, if the R1T/R1S cannot
    successfully communicate with the EA dcFast chargers everything else is moot. I say EA (Electrify America) because it is the only viable dcFast chargers out there. Other chargers such as: evGo, chargePoint, GreenLots, FPL Evolution, etc… pales in comparison to EA with its ubiquitous neon green aura.

    • This discussion was modified 1 month, 2 weeks ago by  edHo66.
    • This discussion was modified 1 month, 2 weeks ago by  edHo66.
  • EJH

    October 18, 2021 at 10:44 am

    Have you asked Rivian to provide their charging curve? From my experience you will get a polite, that will be coming soon…. It would be great for Rivian to be more open and share answers/data like this as they are supposedly shipping customer R1T’s. The lack of specific information from Rivian is extremely frustrating.

  • edHo66

    October 18, 2021 at 11:53 am

    Thank you! Based on my experience with Ford, it doesn’t matter what the manufacturer’s specs are … what it matters is when you are in a Walmart, at 10PM in a deserted parking lot attempting to charge your beloved EV and it takes a lot longer to charge than what was advertised in the glossy brochures… of course with your wife (or companion) freaking out at same time! What I am hoping, is to hear from those who got early deliveries and share their real life experiences. Yes … on paper Mach-E sounded wonderful, until I got to a EA charger …it indeed charged at 110 kWh on a 150 kW dcFast charger …but only for 90 seconds !!!

    • AzBill

      November 17, 2021 at 4:51 pm

      I got the CA Route 1 with the extended range, much better experience. Range is better and charging speed is faster. I get a peak of 160kW for about 2 minutes, then 120kW up to 40%, 100kW up to 60% then 80kW to 80%. That is all I have needed for my trips so far. 80% on my battery gives me 225 miles of highway range. My longest leg so far between charges on a trip has been 183 miles. I have charged from 30% to 80% in 25 minutes.

      Go for the biggest battery you can get. My extended range Mach E has 70kWh usable at 80% charge which is 2kWh more than the standard battery. Ford does have an OTA planned that will extend the 80% drop out to 90%.

    • trickster92

      November 23, 2021 at 11:38 am

      Keep in mind that today’s EVs have an onboard charge controller. This is what controls how fast an EV will charge. It’s great that EA has stations that can provide up to 350 kW, but its the onboard controller in the EV that will regulate how fast it accepts the charge.

      The reason the charging curves seems so weird is because EV manufacturers are concerned about how hot the battery will get and how much the batter will degrade with every full charging cycle of the battery. Taking in that much of a charge throughout the charging cycle will heat the battery up and the last thing they want is to have a car battery breakdown or worse, catch fire due to charging too fast.

      So for now, EV makers will be very conservative in how they allow their vehicles to charge. As they learn more effective ways of dissipating battery heat or come up with new battery formulations, they will err on the side of caution.

  • Bumble1978

    November 23, 2021 at 10:03 am

    EA needs to get their act together in general, no doubt. If the brand new EA station in Leavenworth, WA that we’re banking on to make it to our cabin about 5 hours away is down or full when we happen to be traveling there once or twice a year, well, we’re stuck in Leavenworth for a bit. Worse places to be stuck though. 😉Not much we can do other than L2 charge and hope for the best. Planning ahead is the best thing you can do and you still have to hope for the best. Hopefully the NAV tools Rivian Provides will help take much of the guess work out.

    This is why the materialization of RAN DCFC’s this next year and Tesla Superchargers allowing CCS will be a huge help! Hoping that $11BN plus a little help from Uncle Sam will help improve this over the next year.

    • This reply was modified 1 week, 1 day ago by  Bumble1978.
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