Power in Flux

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Type: Posts; User: Warren

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  1. Harlan of Hollywood Electrics on Marketplace

    I always listen to Marketplace. Pleasantly surprised to hear a piece about somebody I've actually heard of. :-)

    https://www.marketplace.org/2017/03/17/world/electric-cars-electric-motorcycles
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    How about this photo? ...

    How about this photo?

    https://endless-sphere.com/forums/download/file.php?id=190926

    Last April. Last trip for lawnmower gas. The stinker mower was replaced by this one.
    ...
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    I definitely like that sort of thing. :-) ...

    I definitely like that sort of thing. :-)

    http://www.evalbum.com/5173
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    As far as I know, nobody has been able to sell an...

    As far as I know, nobody has been able to sell an EV to a non-EV-enthusiast. But all the EV enthusiasts are sure it will happen. :-)

    Even on the EV sites, where half the people have never driven...
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    Much more useful would be if the current DCFC...

    Much more useful would be if the current DCFC stations actually conformed to the existing CHADEMO standard. That way electric motorcycles with under 300 volt packs could actually use the stations. ...
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    Crazy high power charging is now a thing. Such...

    Crazy high power charging is now a thing. Such high power charging, now, only makes sense for very large battery packs that don't exceed currently accepted C rates...SUVs/trucks. Such charging will...
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    Chaz, Do you know about fellow Virginians ...

    Chaz,

    Do you know about fellow Virginians

    Brian Richardson

    http://motoelectra.com/

    and Richard Goff?
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    If you don't get your CA sorted. email ...

    If you don't get your CA sorted. email info@ebikes.ca They are very helpful. Justin may answer himself, and he is the designer.
  9. Thread: Leaf pack

    by Warren
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    Stevo, The 8 module pack you linked to is not...

    Stevo,

    The 8 module pack you linked to is not the same pack. That is part of an early Leaf traction pack...pre-lizard chemistry. The modules look like this.
    ...
  10. Thread: Leaf pack

    by Warren
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    Ammadien, I am not a Leaf expert, but the item...

    Ammadien,

    I am not a Leaf expert, but the item pictured in that ad is NOT a Leaf traction battery. It is a Nissan Murano Hybrid battery.
    ...
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    Pretty good article. I hear EV fans, especially...

    Pretty good article. I hear EV fans, especially on the car sites, comparing battery development to electronics' exponential growth. They assume huge jumps in energy and power density in 5-10 years....
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    Oops! Sounds like time for bigger motor.

    Oops! Sounds like time for bigger motor.
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    14 kWh max, 12.5 kWh nominal, coming to the US,...

    14 kWh max, 12.5 kWh nominal, coming to the US, ~$17K...not cheap.

    http://insideevs.com/bmw-motorrad-equipps-94-ah-lithium-ion-cells-also-in-c-evolution-electric-scooter/
    ...
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    Stevo, Nissan considers 3.2 volts per cell the...

    Stevo,

    Nissan considers 3.2 volts per cell the limit, so 44.8 volts on your pack. I am running the same pack on a 130 pound bicycle, with a 147 pound rider, and bicycle tires. Even pulling 500...
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    2016 Leaf modules

    Bluestreak, over on V is for Voltage, apparently got these 2016 modules from Hybrid Auto Center. There can't be more than a handful of cars on the road with these. Hard to imagine there has been a...
  16. Thread: Not a bot

    by Warren
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    If I was a bot, I'd never grow old. :-) I...

    If I was a bot, I'd never grow old. :-) I haven't been able to get anywhere on here for a month. I hope that whatever was clogging the site up is fixed.

    Thanks, Warren

    Still no motorcycle,...
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    Yeah. Scientists say we are in a situation...

    Yeah. Scientists say we are in a situation comparable to a world war. Our response has been to ask for volunteers, while two thirds of the government and public say that the news reels are fake, and...
  18. Thread: Wind chill

    by Warren
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    OK. So he is saying different people lose heat...

    OK. So he is saying different people lose heat at different rates. This is not "perception."

    As for a perfect insulator...yes, if you are not losing any heat it won't be enhanced by air...
  19. Thread: Wind chill

    by Warren
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    Wind chill does not vary "from person to person...

    Wind chill does not vary "from person to person depending on their tolerance to cold." It is not subjective. It is an absolute scientific measurement. There are several standard models. But using...
  20. Andy, There are lots of bicycles with front...

    Andy,

    There are lots of bicycles with front hub motors. The main issue is care with the throttle. Loosing traction in the front of a two wheeler is not good. You will find many here.
    ...
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    Joe, Then you are no longer using the twelfth...

    Joe,

    Then you are no longer using the twelfth module for accessories? If so, are you now running twelve in series for the traction pack?

    [edit] Never mind. I missed your earlier post about...
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    That slot is called a keyway. The sprocket...

    That slot is called a keyway. The sprocket should have a matching keyway. The sprocket should have a set screw directly over the keyway to hold the key in place. Sometimes you can't find a...
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    PFox84, "If your fast charger is a constant...

    PFox84,

    "If your fast charger is a constant current device then it will not "self limit" current when reaching the last 20% of SoC, or at any point really. You will most definitely abuse the pack...
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    nedfunnell, I would like to volunteer my take,...

    nedfunnell,

    I would like to volunteer my take, and hope that the real battery experts on here will correct me, if I am wrong. Without a BMS, a BALANCED, HEALTHY battery will naturally see...
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    Here is a test for you. Take a Better Place...

    Here is a test for you. Take a Better Place Nissan/Renault pack out of storage after three years. Don't top, or bottom balance it. Hook it to a component test bench. Leave it hooked up to...
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