Power in Flux

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    Art Gallery introduction of the Bike 7974

    Art Gallery introduction of the Bike
    7974
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    No all I have are pictures

    No all I have are pictures
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    No all I have are pictures

    No all I have are pictures
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    We designed and built the Volta for Hammerhead He...

    We designed and built the Volta for Hammerhead He got into money problems and disappeared We even started new designs Then he left me hanging. I think we did really well with old school LIPO4 large...
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    Because individual builders need to be qualified...

    Because individual builders need to be qualified at some level, so I like to talk to or email potential customers. If I feel they are building something unsafe then I won't sell to them. Motorcycles...
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    New builds can be found on...

    New builds can be found on
    https://www.facebook.com/groups/Enertrac/
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    I had 2 of them self destruct trying to charge 14...

    I had 2 of them self destruct trying to charge 14 leaf modules 114 volts luckily I get a refund
    The ones I purchased were rated 900 watt, that's a joke. I set the voltage and current limit so it...
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    I'm interested in four units I sent you a...

    I'm interested in four units
    I sent you a message
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    Try raising the CPU power to 24 volts I had...

    Try raising the CPU power to 24 volts I had trouble at 12 volts very similar to what you're getting
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    Happens to everyone at some point, I dropped my...

    Happens to everyone at some point, I dropped my Lifan making a U turn at 2 MPH,
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    Well quite a statement I have thousands of miles...

    Well quite a statement I have thousands of miles on a Hub motor based motorcycle and my customers have 10 of thousands of miles on Hub motor based motorcycles Kraig Schultz
    has 16,000 miles on his...
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    Leaf battery with MiniBms

    I did a Pack using mimibms
    see schematic
    Down load here its to big for an attachment
    https://www.sugarsync.com/pf/D336079_94672102_797062

    I hope this helps
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    The two motors are very different as NASA has no...

    The two motors are very different as NASA has no concern about weight for instance there motor has a Stainless Steel axle but the upgraded class H insulation materials have migrated to our standard...
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    EnerTrac Corp other projects

    For those who have been following Enertrac and it Wheel motor development I though I'd Show how we evolved the motor (very very different motor from our commercial product but still a Drum motor) to...
  15. Thread: Hub motors

    by markcycle
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    Worth watching Says a whole lot about the...

    Worth watching
    Says a whole lot about the handling of a hub motor


    http://youtu.be/HpzvVMzP4y0
  16. Thread: Hub motors

    by markcycle
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    5,851

    I'll chime in here Catavolt is using two 600 amp...

    I'll chime in here
    Catavolt is using two 600 amp Kelly's but has them turned down to about 400 amps, Kelly controllers tend to need to be turned down to run reliable. Two Gen4 size 4 Controller...
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    I've purchased this one with good luck...

    I've purchased this one with good luck
    http://countyimportparts.com/product_info.php/products_id/10550011
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    I've had this problem due to connector contacts...

    I've had this problem due to connector contacts having high resistance or intermittent connection.
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    We also offer a Sevcon Gen4 size4 It's delivered...

    We also offer a Sevcon Gen4 size4 It's delivered all tuned and ready to go. It's silky smooth with no cogging.
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    Kelly Controller have worked very well for me and...

    Kelly Controller have worked very well for me and my customers. I've sold or supported hundreds of Kelly controllers, So I can speak first hand that they have gotten much better. If connected...
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    SNAP Motorcycle CX1

    Interesting Design Dual motor dirt bike, Rear motor is a EnerTrac MHM-603 Front is a custom lighter weight motor designed for this bike by EnerTrac
    Lots need to be engineered before its a finished...
  22. With the rear wheel off the ground what is the no...

    With the rear wheel off the ground what is the no load amps at full speed
  23. At 222 wh/mile meltdown is in about 5 minutes...

    At 222 wh/mile meltdown is in about 5 minutes maybe 7 minutes no way you did 30Km averaging that kind of power level. Where is the heat going??
  24. Something is not right If you were really using...

    Something is not right
    If you were really using 21.3Kw The motor would shut down on over temp or burn out
    I'd start by calibrating the method you're using to measure current.
  25. We have a few Sevcon Gen4 Size 4 controllers...

    We have a few Sevcon Gen4 Size 4 controllers tested with the 600 series motor, and ready to ship
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