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  1. M

    Who has the lowest wh/mile bike?

    Who has the most efficient bike? Also, what's the most efficient production e-bike?
  2. M

    Buying an eBay LiFePO Battery via Craigslist. Can I test it?

    Okay, so I'm going to look at a LiFePO4 48v 20ah battery back that's for sale on craigslist for $200. The sell says that he bought it on ebay a month ago for $600, but lost interest, which I believe. If I test the voltage, what should I be looking for? I was thinking about buying a power...
  3. M

    Turnigy 130A Watt Meter, WILL IT GIVE AN AH RATING??

    I'm thinking of purchasing the "Turnigy 130A Watt Meter and Power Analyzer": http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=10080 But am wondering if it has a function to measure battery capacity. Thanks for the help.
  4. M

    What does 15s mean for Li batteries?

    First off, don't jump on me for not looking it up, I've been lurking for a while and tried to look it up a few times. So what does the "s" mean? What is the voltage per "s'"? Thanks.
  5. M

    Suck, squeeze, bang, bust: the death of the ICE (article)

    http://www.engadget.com/2011/02/03/suck-squeeze-bang-bust-the-death-of-internal-combustion/ Good article, but clearly a lot of people in the comments who question EV performance and style haven't seen the crazy stuff that people on here are up to. :D
  6. M

    E-BikeKit Wheel laced wrong (Some old close-out wheels only)

    I couple of months back I bought a direct drive (9c) front 26" wheel on close-out from E-BikeKit. When I got the wheel I noticed that the spokes had a noticeable bend in them near the rim and spoke nipple. At first I thought that it was because the hub is much larger than a normal one and the...
  7. M

    Help with lead acid battery charger!

    Hi, I'm going to be running 3 12v 18ah AGM batteries and I need buy a charger. It's my understanding that it's better for the batteries to be charged individually, its this so and how much of a difference is there? I was looking at getting 3 of these chargers, which at 4 amps should charge it in...
  8. M

    Golden motor magic controller or other?

    Hello, I'm looking to set up an electric assist cargo bike using a Nine Continent 6x10 hub motor. The golden motor "magic" controller looks neat, but do all the bells and whistles compromise efficiency and reliability? Can anyone say if this is a good controller or recommend another? Also I'd...
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