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  1. C

    Em3ev controller surging

    So I upgraded my controller to a 12 fet 40amp controller from Paul and also bought the matching switch, cruise control, and throttle. It's running my Mac motor that runs fine. I upgraded from 5s to 6s so I'm now at 48v with 10ah. I have two questions if someone could help me out... 1)...
  2. C

    Charging from two sources, Balance from 1?

    So I'm running 4 5s Lipo's, two in parallel and then the two packs in series. I have a plug that is modeled after Trench's plug, http://endless-sphere.com/forums/viewtopic.php?f=6&t=37489 an incredible design and thought I'd copy it...thanks Trench. But I don't have the powerful charger that...
  3. C

    CA wire, can it be cut?

    I'm building a new bike and would like to make it as tidy as possible. My battery box is midship and I'd like to run the wires through it, but the shunt is too large for the hole. I'm trying to keep the holes small, so could I cut the wire leading up to the head unit or is that a calibrated...
  4. C

    Custom quick battery connection

    Im getting tired of disconnecting all four 5S battery bricks and connecting them individually to a four cell battery charger. So I'm wondering if someone already invented a way to quickly disconnect them from the bike and connect to charger. I'm thinking about something like kong has made...
  5. C

    DC Brushed motor efficiency question

    So I've been running my trusty 800w brushed DC motor for 10 years. It's 36v and I recently went to LIPO and installed a watt Meter and am unhappy with my numbers and looking to smarter people to direct me to some reading. A 4 mile trip brought me down to 39.27 volts after hot off the charger...
  6. C

    Efficiency of old verses new

    For years I've been running an 800 watt brushed motor from from a scooter and adapted it to my bike. I used a Curtis Controller with no real limits on Amps. I ran SLA for a long time and then used a NIMH pack. Both packs died and I had to take a break for relocating to the East Coast. I'm...
  7. C

    What would you build with this shop?

    Ok guys and gals, I've been driving an ebike for 8-9 years now and have about 3K miles on them. Used to commute with one but then just off and on. I now have a job where I'm basically a shop teacher and have access to shop in the pictures. I have a problem designing things, but a blue print...
  8. C

    Wife finally wants one - $400ish budget

    So the wife is actually interested. I've been riding an Ebike since living in Hawaii 7 years ago. I heavily leark around these boards and try to absorb all that I can. I really need to find someone to talk to in my area, I can keep everything straight...in come my question. She has a...
  9. C

    Motor AMP draw

    So I'm getting ready to pull the trigger on getting a battery pack to replace my NiCD pack that is dead. But I'm concerned about how many AMPS I'm drawing through my motor and can't get a reading on it. My pack is pretty well dead, not a lot of life left so I am concerned that I won't get max...
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