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  1. Sajeel

    First eBike build with longevity in mind - Samsung 50G MTB Front Hub (Now rear hub)

    Thanks - The 37 km/h is probably wrong due to wrong controller settings. I'll update with GPS speed, once I finish the project!
  2. Sajeel

    First eBike build with longevity in mind - Samsung 50G MTB Front Hub (Now rear hub)

    Hehe - you are absolutely right! Thank you for your help and contribution - it motivated me to finish this project. It feels really nice being so close to the goal :D.
  3. Sajeel

    First eBike build with longevity in mind - Samsung 50G MTB Front Hub (Now rear hub)

    I hooked up my throttle to my lab power supply and measured it - throttle works. I concluded that it was a controller issue. I hooked everything up to the new controller I ordered and it works! :flame: :bolt: :bigthumb: It goes 37 km/h without any resistance on the wheel. Which is a little...
  4. Sajeel

    First eBike build with longevity in mind - Samsung 50G MTB Front Hub (Now rear hub)

    I opened up the controller to have a look and trace wires, as per your suggestion. You were right in advising that - it also gave me an oppurtunity to do some minimal waterproofing with CorrosionX HD (very greasy stuff) and determine that I needed to short the pins: Shorting the 2 pin...
  5. Sajeel

    First eBike build with longevity in mind - Samsung 50G MTB Front Hub (Now rear hub)

    I must admit - I went home a little early because of your reply 😅. Thank you for clarifying the technical part of the brake levers. I'm almost sure it's the KSI issue that's preventing me from powering on, because I did not connect anything further to the battery positive. However I'm unsure on...
  6. Sajeel

    First eBike build with longevity in mind - Samsung 50G MTB Front Hub (Now rear hub)

    Does the brake signal wire need to be shorted in order to turn on the ebike? My brake signal cable got damaged near the brake lever, so I just cut it off near the brake lever - I was planning to just run with a single brake wire. Could this be the cause of the ebike not turning on? Any...
  7. Sajeel

    First eBike build with longevity in mind - Samsung 50G MTB Front Hub (Now rear hub)

    Thanks. That was a "middle-of-the-job" picture. It was a more pretty picture. They all look more or less like this when finalized:
  8. Sajeel

    First eBike build with longevity in mind - Samsung 50G MTB Front Hub (Now rear hub)

    Yes - it's much more snug now 🙃. I've been working on the battery and I have gotten it all hooked up - there are some bad news tho.. I'll get to that. Here are some pictures of the process: Not exactly as clean as I imagined it.. but I made it fit almost. Because of the way I...
  9. Sajeel

    Low volts on one block of parallel cells. BMS or cell(s)?

    I know this is an old post. But I'm having s similar issue... sort of.. I have one parallel group running higher voltage than all of the others. All groups are within 0.09v of each other, except the last 14th group, which is also the battery positive. The difference kept increasing, as I was...
  10. Sajeel

    First eBike build with longevity in mind - Samsung 50G MTB Front Hub (Now rear hub)

    Do you mean in between the axle nut and the TA, or in between here:
  11. Sajeel

    First eBike build with longevity in mind - Samsung 50G MTB Front Hub (Now rear hub)

    Thank you. It helped with the aligment of the TA - I'm only using one washer inbetween on that side now: Thanks! I think I will 'hose it down' once I'm closer to the finished product in case I need to adjust things, I won't need to take off two hose clamps. Not sure I should use...
  12. Sajeel

    First eBike build with longevity in mind - Samsung 50G MTB Front Hub (Now rear hub)

    Do you mean the washer with the tab on it?:
  13. Sajeel

    First eBike build with longevity in mind - Samsung 50G MTB Front Hub (Now rear hub)

    Thank you - I have however already made these considerations. I don't want to settle. I want to make the best that I can with what I have. I think it would be rewarding to learn as I go, and to build something that I can really feel proud of, knowing that I did what I could :) . Grin Tech V4...
  14. Sajeel

    Charged capacity vs Discharged capacity 18650

    I'm not sure I would trust a capacity tester/charger like that. I've bought the Xstar Dragon VP4 which was sort of expensive, and it's off! I would use something else to test for capacity. There are some nice looking ones on eBay with a heating-element, a fan and a display. In regards to using...
  15. Sajeel

    Daly BMS lov-voltage cuttoff not working

    I think more information is needed to give you a proper answer. Have you wired/built your system to by-pass the BMS when discharging? If not the above, then I would try the following: Measure each individual cell voltage, measure total string voltage, measure current on each balancer lead...
  16. Sajeel

    First eBike build with longevity in mind - Samsung 50G MTB Front Hub (Now rear hub)

    Planning the battery pack for a 14S6P configuration: So, the idea was to honeycomb 4 rows of 12 cells in the middle and also have 12 cells laying down on either side of the middel/honeycomb part of the battery pack (in order to fit enough cells for a 14S6P pack): Please excuse my paint...
  17. Sajeel

    First eBike build with longevity in mind - Samsung 50G MTB Front Hub (Now rear hub)

    Lots of good stuff here! Thanks! Yes, I have a tabbed washer on the outside of either side, having the tab face inwards towards the motor to "hold the axle in place of the dropout". There were also C-washers in the torque arm kits I mounted which I used to get correct spacing for the first...
  18. Sajeel

    First eBike build with longevity in mind - Samsung 50G MTB Front Hub (Now rear hub)

    That looks scary! Torque arm fitting: I couldn't fit my torque arms to rest on the stay, because of the design of the bike. I don't have machines to make my own torque arm either. I put on two torque arms on the side of the hub that I was able to, mounting them with a gardening hoseclamp to the...
  19. Sajeel

    First eBike build with longevity in mind - Samsung 50G MTB Front Hub (Now rear hub)

    Thanks to both of you! - I'll buy you a beer if you ever visit Copenhagen :D. Filing the dropout down to fit the motor axle: My wheel is now completely centered, after filing the dropouts down with a small rounded diamond file: Before: After: If I turn the wheel (with no bolts or...
  20. Sajeel

    Motobecane 50V Conversion

    Looks pretty good - almost like new :wink:. You might want to consider having washers on either side on the axle, instead of one side only.
  21. Sajeel

    First eBike build with longevity in mind - Samsung 50G MTB Front Hub (Now rear hub)

    I didn't think that could be the cause of the skewedness - I was planning to file the dropouts down (being careful not to overdo it), once I install the torque arms. Should I file to widen the drop out, or file the "bottom" of the drop out? Thank you for clarifying with the "Electrle lock" -...
  22. Sajeel

    First eBike build with longevity in mind - Samsung 50G MTB Front Hub (Now rear hub)

    Thank you - I've been off for a few days doing other stuff while waiting for parts to arrive. I've fixed the washers and tried to align the wheel. It is now almost completely centered, as opposed to the earlier picture, but it is now scewed at the seat stay a little bit. Eventho it's a new...
  23. Sajeel

    Your Creation's Before & After Pics

    Nice farthole in the seat... for added thrust I suppose? :D :flame: Nice looking bike tho!
  24. Sajeel

    C rate, battery, charging and charger?

    Quick question: I have some Samsung 50G cells (4900 mAh) that I want to build a battery pack of and find a suitable charger. For optimal cycle life it's stated that they should not be discharged above 1C ~4900 mAh/hour ~4.9A(?) I'm building a 14S5P pack. What about charging? In order to...
  25. Sajeel

    First eBike build with longevity in mind - Samsung 50G MTB Front Hub (Now rear hub)

    Test fitting the leaf hub motor So I figured out that the hub motor I have is not a front hub, as I had ordered (I also ordered a 26" wheel, but it came on a 27.5" - which actually fits the bike better - I can't complain). It has threads on one side to fit a freewheel. The hub motor axle width...
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