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  1. S

    Bigger than R/C: Where to get motors?

    I'm wondering if it's possible to get a 10kW 3-phase motor for less than $800. Anyone have any suggestions?
  2. S

    found new cheap site for BMS, LiFePO4 & charger up to 18000W

    VERY interested. This would cut the cost of my bike project nearly in half. What discharge rates are these packs rated for?
  3. S

    Batteries and where to get them.

    Hmm. Looks like I'll need to budget more than I'd thought for the BMS. Anyone have a recommendation for a motor controller?
  4. S

    Batteries and where to get them.

    Note: I'm not sure if other people here are using it, but R/C battery notation works as follows: number of cells in series + S + number of cells in parallel + P. A 3s2p pack would have six cells arranged into three series-wired sets of two parallel cells. I'm still trying to figure that out...
  5. S

    Batteries and where to get them.

    I suspected as much. Actually, I'm figuring that a 30 mile range will end up being ten miles if you ride like an idiot. The fellow I linked to said he could get up to 30 miles on a 10Ah 48V pack - I figure I'll be able to do the same out of my LiFePO4 cells. Of course, he was using a belt...
  6. S

    Need help designing a Vectrix Inrush Current Limiter

    Couldn't you do this with a really big inductor? It would have to be a huge lump of copper with an iron core, but it might help reduce inrush current.
  7. S

    Batteries and where to get them.

    About ten miles at stupid speeds - so, about 30 miles with a more sane degree of acceleration. The 20Ah thundersky cells are rated for 200A burst - is the claim on the website bogus? I'm a bit confused as to why this is necessary. Isn't it just an issue of matching up the output drive gear...
  8. S

    Headway 38120S - Group Buy Opportunity (Houston, TX area)

    These are the 10Ah cells rated for 10C continuous discharge, yes? How much are you asking? Are these recommended cells for n00bs like myself with limited experience beyond BMS-less LiPos in R/C airplanes? I need 15+ cells for my DIY bicycle project - I'm told that a 480Whr battery pack will...
  9. S

    Batteries and where to get them.

    I've always been too timid to go more than 45MPH on any two-wheeled vehicle, and the insurance is prohibitively expensive for a someone my age anyway. However, I read an interesting webpage on a DIY electric bike design using R/C airplane parts, and figured I'd give it a go. (Before you ask - I...
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