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  1. judson

    Are cell phone batteries different somehow?

    I have been reading in ES for a month or two now in preparation for my first ebike conversion. I feel like I have a ton more to learn but one thing I thought I knew was that, with respect to Lithium batteries, one should not deplete them completely. Shallow cycles = better. Then I pop the case...
  2. judson

    New Bafang Crank-Drives

    This is a very astute point. I have heard such wildly different 'rules of thumb' for the Wh/mile that people claim, it is hard to be sure that I am going to make it to work. My commute is only 10 miles each way. On the way to work I was looking for more assistance so I don't arrive all sweated...
  3. judson

    New Bafang Crank-Drives

    Recently decided to convert my steel mtn bike to an ebike. Because I eventually want to use this kit on a cargo bike (yet to be purchased) and the area i live in is fairly hilly (Seattle) I was aiming towards the 750W. I was going to purchase the kit from em3ev.com but the biggest frame battery...
  4. judson

    How is my math/thinking? Basic battery question

    Thanks for all the info. Sounds like, whether or not my calculations were electronically sound, I ended up in the correct neighborhood of battery size (i.e. 10 to 15Ah). It should be really easy for me to charge at work so I am thinking about aiming towards the 11Ah variety. I am sure there is...
  5. judson

    How is my math/thinking? Basic battery question

    I am planning on commuting 10 miles to work on an ebike built out of an older steel mountain bike and a 48V BBS02. The ride has a couple shallow hills but nothing extreme. It normally takes me 50 minutes to bike without a motor. So in trying to estimate my battery needs I guessed an average...
  6. judson

    Trying to get it all straight

    Thanks everyone for all the helpful thoughts. I am definitely hearing the thoughts about going back to a DD rear hub motor or even a geared rear hub. Let me push back for a second (then I can roll over later with honor). One of the reasons that I was looking towards the mid drive was that in...
  7. judson

    Trying to get it all straight

    I hope this comes out alright, can't sleep so I am gnawing away at my electric bike dream deep into the night. I posted recently about my vision and asked about the frame I am acquiring for the purpose. Long story short, I think I am going to pick up an old mountain bike ('91 Rockhopper) to...
  8. judson

    '91 Rockhopper seem right?

    Yes, one of the trade-offs of living in a bike-friendly town. Thanks for checking in on that. I still have yet to see that bike but hopefully it works out and I can get started on the electronic side of my electric bike.
  9. judson

    '91 Rockhopper seem right?

    Hey, This is my first post. Some circumstances in my life have changed and I am now excited to be a ble to commute by bike this next school year (starts in September). My goal is to be able to build my own ebike by then. I have tinkered with bikes and built up a couple bikes. I am new however...
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