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Jerr.e is the contemporary brother of the jerry can (portable EV charger / range exte

Discussion in 'Charging Standards and Infrastructure' started by Benz, Feb 10, 2015.

  1. Benz

    Benz Active Member

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    Jerr.e is the contemporary brother of the jerry can (portable EV charger / range extender).

    It allows you to charge anywhere.

    It's a Dutch invention.

    It will come to market in Q4 2015 or in Q1 2016.

    No price as of yet.

    More info will be released on their website during the next months.

    Link website: http://www.star-engines.com/
     
  2. jaguar36

    jaguar36 Member

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    So are they basically just repackaging a generator? A generator of that size could only put out about 2kW, which would charge a car as big as the Model S at an extremely slow rate.
     
  3. arg

    arg Member

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    Their claim is that their technology has unusually high power density (not energy density, as we are more often concerned with when talking about batteries). In particular, they claim 702 W/kg, and quote the BMW i3's REX as 208 W/kg as comparison.

    So if this 'jerry can' weighed 20kg (excluding fuel), that would mean by their claim that it would be a 14kW unit. More likely they are targeting EVs other than Tesla, so a smaller unit at say 6kW would weigh 8.5kg.

    If they can actually deliver, it comes out much better for this application than any standard generator. Presumably the compromise that lets them achieve this will be poor efficiency (fuel consumption) - they mention Wankel engines in their write-up.
     
  4. Benz

    Benz Active Member

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    I made a phone call to the phone number which is mentioned at the bottom of the website.

    The Jerr.e will use a maximum of 5 litres of petrol, and it will charge an EV with maximum of 10 kWh in a maximum time of 1 hour.
     
  5. Robert.Boston

    Robert.Boston Model S VIN P01536

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    Interesting that this appears to offer only the EU-standard plug. Perhaps they will develop one with a J1772; should be a trivial change.

    The webpage suggests that people would use this as a range-extender in trip planning, which I find unlikely. I could see a sales niche for people whose planning has gone amiss (detour, snow, etc.). I could also imagine tow trucks and other car rescue vehicles having one or two on board, though it's probably easier just to trailer a no-juice EV to the nearest chargepoint.
     
  6. CSFTN

    CSFTN Member

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    Made by a European company apparently for European EVs. Far as I know, they all/almost all? use 3 phase AC for they basic charging. I therefore make the uneducated guess that this generates 3 phase AC and so can't be used in the US. Rather, they would have to make a 2 phase AC specific device, which wouldn't be hard ... but its a fundamental re-design, not a trivial change.

    Anyone know better?
     
  7. arg

    arg Member

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    It has the type2 _socket_, like a fixed charging post. There are cars over here with J1772 (aka Type1) on them, but you simply use a Type1->type2 cable in place of the Type2->Type2 cable that you would need to use with a Tesla etc.

    So you could export one of these to the US if you brought the right cable with it (though there might possibly be some kind of regulatory limitation on doing this commercially).

    Other parts of their website show that they want to sell their lightweight generator technology as better REX units for permanent installation in EVs like the BMW i3. So this can is maybe as much a demonstrator for that idea as a product in its own right.

    - - - Updated - - -

    Varies from place to place: the same connector is used for single phase (up to 70A in theory) and three phase (up to 63A per phase). The UK makes quite a lot of use of single phase - 7kW charging (32A single phase) is common here, though anything above that is three phase; elsewhere, 3-phase will be more commonly used above 16A.

    Note that the Nissan Leaf (among others) is limited to single-phase at the car end.
     
  8. jaguar36

    jaguar36 Member

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    A 10kW Honda generator is quite massive, and it burns gas at twice that rate (ohh and costs $5500). I'm highly skeptical that they've managed to make a generator that is that much better than a Honda. And if they did, this seems like quite a silly use for it.
     
  9. Mark77a

    Mark77a Member

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    FAB idea - but promo pix with i8 wrong on several levels .. I mean i8 already got an ICE to recharge battery after tiny 20 miles of EV range is used up ..
    eg Jerrycan shaped Range Extender Could End Range Anxiety
     
  10. Dutchie

    Dutchie Member

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  11. Moonwick

    Moonwick Member

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    Gotta wonder how long it'll take for that thing to cool off enough that I'd feel comfortable putting it back into my trunk. Also, I'd expect it to smell quite heavily of exhaust fumes and oil after it's been used, if my like virtually every other ICE-powered device I've encountered...

    If neither of those turn out to be a big concern, though, this is an excellent idea.
     

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