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Thread: DCFC Charging for Bolt EV dealers

  1. #1
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    Default DCFC Charging for Bolt EV dealers

    As mentioned elsewhere, it is a requirement for Bolt dealers to purchase a DCFC charger for the service department.
    Although they will likely be used to routinely charge Bolts in for service, they are mostly necessary in order to insure that they are in a position to be able to test and if necessary diagnose DCFC issues.

    The unit itself is interesting as it is a 25kW unit from Bosch which only requires a 240V single phase input (albeit with a service rated to handle a maximum of 138A input current)

    The 24x18x10" enclosure is IP54 rated, can be wall or pedestal mounted and weighs 104lbs

    WOT

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  2. #2
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    I couldn't find this particular Bosch dcfc online anywhere, but it looks identical to this one

    http://www.evchargesolutions.com/Del.../deltadcfc.htm

    So I'm guessing Bosch bought it and slapped their logo on it like they did with the SPX EVSE in my garage. With a price of $9999, it's really going to be hard for me to justify getting one from a dollars and cents perspective. Is there any info out there on how long it takes to fully charge a depleted bolt with one of these puppies, and whether charging on a daily basis might have long term effects on the battery? I'm probably not buying a bolt, but I do need to learn more about dcfc as GM preps my Subyukonade EV someday (oh please, oh please make it soon)
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    I read a 480v, 80 capable DCFC is required?
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  6. #4
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    Quote Originally Posted by llninja View Post
    I couldn't find this particular Bosch dcfc online anywhere, but it looks identical to this one

    http://www.evchargesolutions.com/Del.../deltadcfc.htm

    So I'm guessing Bosch bought it and slapped their logo on it like they did with the SPX EVSE in my garage. With a price of $9999, it's really going to be hard for me to justify getting one from a dollars and cents perspective. Is there any info out there on how long it takes to fully charge a depleted bolt with one of these puppies, and whether charging on a daily basis might have long term effects on the battery? I'm probably not buying a bolt, but I do need to learn more about dcfc as GM preps my Subyukonade EV someday (oh please, oh please make it soon)
    Nice find. The unit in your link is a dual CHAdeMO and CCS unit. So I'd guess a CCS-only (or CHAdeMO-only) unit would knock a grand or so off the price. Delta is in Fremont, Ca - literally on the other side of I-880 from the Tesla plant.
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    Quote Originally Posted by bro1999 View Post
    I read a 480v, 80 capable DCFC is required?
    The tech specs say it is available for either 240v single phase, 208v three phase, or 480v three phase.
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  8. #6
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    Nice! This is a way to fast charge the Bolt EV at home! Sure, it's almost 1/3rd the cost of the car, but for taxis, Uber/Lyft/Maven this would be great!
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    Hmmm.....I've done the engineering for the new or remodeled facilities of several local dealerships, including Chevy and GMC dealers, the past few years. Most had 120/208 volt/3 phase electrical services. As noted by WOT, this takes a high-amp circuit to charge even at 25 kW and is not a trivial install on the input side of installation. Hope there isn't too much push-back by the dealers on this. This will definitely further limit the # of dealers nationally who are interested in selling the Bolt EV.

    I suspect the quote about 80 kW DCFC being required at the dealers was a mis-quote or a mistake. There's no way most dealers could even install such a large single load. They'd need a new electric service, which is $$$$. GM probably is aware of that.

    And to consider installing such a device (the Bosch 25 kW DCFC unit) at home? Go talk to your utility and your electrician before getting too excited.
    Last edited by hvacman; 12-07-2016 at 12:14 PM. Reason: clarified the home charger
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    Daily charging with that high a current rate would shorten your battery life quite a bit, I am sure. Probably not a good idea.
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    It only took a couple years for EVSEs to go from $1,000 to $300. I'll bet this goes from $10,000 to $3,000 pretty soon. At that point, it becomes viable for a home user. All ya need is a 400amp power entrance or a 200amp separate meter. Lol.
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  13. #10
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    Quote Originally Posted by SharkVolt View Post
    Daily charging with that high a current rate would shorten your battery life quite a bit, I am sure. Probably not a good idea.
    How do you figure? The Bolt is 60 kWh, so charging at 25 kW is about 0.4C. Charging is only a real concern above 1C. By comparison, the newest Superchargers can pump 135 kW into a 90 kWh battery, which equals 1.5C
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