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  1. C

    A Probably Stupid Question About Lacing

    So I got my rim and motor in the past couple days and set about lacing it last night. After seeing ypedals video, I realized I needed to bore out my rim holes just a little to fit these new spokes. So now all the nipples rest in their holes easily but I can only get about halfway around before...
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    Battery Capacity vs Voltage

    I know this has been discussed on this forum myriad times but finding this site made things very clear for me a while back. http://www.powerstream.com/lithuim-ion-charge-voltage.htm Gives one an idea of capacity and shows the effects of charging to these voltages so you can more easily decide...
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    Watts up external shunt

    So I have a watts up coming that I planned on using for my basic bike computer needs. Is it possible to make or use the CA shunt with this in anyway? I'd like to have it in plain view near the handlebars but I don't see that being realistic if I have to run battery gauge wires up there. I don't...
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    Led brake lights?

    A quick search didn't show anything but I'm wondering a) what's a nice cheap 50v+ dc dc buck b) what do you use for tail lights? Is there an easy way to tap into the wires that kill the motor when braking to have them light them like brake lights? I used to have a set of cheap lights that would...
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    Is The Hundreths Balanced Enough?

    So I'd bought a 6S balance cable to start bringing the weird 2 cell with cutoff batteries I have together. As I begin probing I realize both batteries are within hundreths of each other on every single battery. My understanding is that a balance charger isn't going to bring them too much closer...
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    My bike build log

    Is this the right place for it? -- Anyway I've got the kit coming, battery in construction and now I'm going to get the bicycle soon so I can start dry fitting and planning details. Here are two options in considering.
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    Is it Safe/Possible/Advisable to leave any circuitry?

    So I have stumbled on a cache of 7.4V liPo cells that are all connected together in twos(hence the 7.4v nominal rating). Now for testing purposes I have tried a few without the onboard circuitry and many with. Both cells seem to charge and discharge unload without issue. Only effect I seem to be...
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    Can these be used as a bulk charger?

    http://www.ebay.com/itm/Power-Solutions-AG-300A-S5-999C-48V-6-2A-Power-Supply-/321120311266 Alright so I found two of these supplies at my work and the boss said I can have them if I need them. Am I correct that they'd only need to be plugged in to use them? I imagine if I strip it down to the...
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    Removable bag?

    I'm planning my build so that the battery will be held in the middle triangle/v of the bike. Now I've seen some triangle bags and such but what I wanted to ask was what is the easiest one to remove and take with me? I'm not too concerned about carrying 30 pounds with me but I am concerned with...
  10. C

    Hello. And I'm building an e-bike

    Hi guys. Lurker for a while now turned member. Planning on building an ebike just as soon as I get the parts together. Planning on a 48v1000w bafang clone rear wheel. Building my own lipo battery with recycled cells. I imagine I'm going to have some left over to sell as well once I have had...
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