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  1. S

    Cromotor Build Log

    Alright, here is the frame as it stands today. My 6s 8ah LiPo packs came in yesterday. I need to figure out how to join the controller to the batteries. I bought a controller from zombiess, awhile back, and it has 4ga leads. I want to have a max of 3 30s strings in parallel. Is that a job for a...
  2. S

    Cromotor Build Log

  3. S

    Cromotor Build Log

    Soon, I'll complete my 3rd ebike. I'll post up some pics and ask a few questions. I'll also be registering the vehicle under Colorado's Low Power Scooter Law. So, I'll need to acquire a VIN.
  4. S

    How to become a Nissan Leaf technician?

    Does anyone know how Nissan trains Leaf technicians? I have been researching it for awhile but I cannot find any solid information.
  5. S

    Torque - Wheel Diameter - Dropouts

    I am confused about the issue of torque vs wheel diameter. I would also like to know how wheel diameter relates to stress on the dropouts. I feel like many qualities are the bike are attributed to torque. Take for example, going from 29er to 20". Does 20" feel more "torque-ie" because of...
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    Simulator of electric bike range

    This simulator was great!
  7. S

    Cost of Batteries Not Dropping

    I realized it's not about price but perceived value. I think prices for lithium batteries are generally falling but battery are still so expensive that we largely avoid taking risks by purchasing an unknown brand. A123, panasonic, toshiba and many others have name recognition and are known for...
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    Coin Operated Charging

    I feel obliged to respond. I studied renewable energy at university, am a PV installer, taught pottery and started this thread.haha Heck yes, getting silica in your lungs is very bad. The body can't remove it. It is akin to black lung. I learned it was pretty simple to mitigate the risks posed...
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    Coin Operated Charging

    I really like these routes to spreading EV infrastructure. It doesn't have to feel like I am going to a gas pump/station. I have heard that studies show that expecting no compensation for a favor typically has a better return than asking for compensation. This could be bar talk that I am...
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    Coin Operated Charging

    haha That is a sweet charger. The push for public charging is weird.I dont feel like there are enough EV's to warrant a large expansion. However, there needs to be more infrastructure to grow the industry. I think the problem is the companies who are asking ridiculous amounts of money for...
  11. S

    My Second Build!

    I am going to add some more information to this thread. I think the moral of the story is that LiFePO4 gives great economics for commuters. I am pretty sure that everyone knows that on here. Anyway, the bike has 750 miles on it now. I haven't had a single breakdown but the Maxxis...
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    The death of Peak Oil = The death of green energy?

    This is the most ridiculous thread I have ever seen. It is a dirty and insidious business. 1) Fracking utilizes a finite resource. The Sun will produce energy for another 5 billion years. How many years do you think natural gas can meet demand, especially when factoring growth? 2) The...
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    My Second Build!

    If you have any questions, ask. I will add more soon and its got the really cool info on this project.
  14. S

    Re: 9c 2806 100V@35A = fast...47mph

    I have found a non-kent frame that closely resembles this one.
  15. S

    Coin Operated Charging

    It couldn't be that hard to arrange this. It would need a way to estimate money per charge based on the person's battery. This could reduce the volume of change/money the machine is required to hold. Also, it would be cool if it could print a ticket with a code. This would prevent theft of the...
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    Coin Operated Charging

    That is a great idea. I know there are tons of those out there, it would make a great platform for the charging stations.
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    Coin Operated Charging

    I am about to move to Colorado. I noticed H.B. 1258 was signed on 5/3/2012. This allows for individuals to sell electricity for the recharging of electric vehicles. I thought it would be cool to get e-bike/ev charging stations that were coin operated. You plug into the charging station with your...
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    My Second Build!

    If i could do it again, I would have gotten 20ahx48v of LiFePO4 from cellman. The battery would have cost about the same as the LiPo. LiFePO4 batteries have such good economics right now. Double the Whrs of an equally priced LiPo and a way longer lifespan. The extra weight doesnt really matter...
  19. S

    My Second Build!

    Hey, this is my second post on endless-sphere but I have been a lurker for about a year. I built, tested and wrote a long paper on this bicycle. I will release the results of the testing, after completion of the paper. I wanted to share a few photos taken throughout the build and testing, by my...
  20. S

    Re: 9c 2806 100V@35A = fast...47mph

    Is this a Kent frame?
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